G-f\ T'loo. ~~ %( lb G-l (C\Q9 OEPARTMENTALRESEARCH GOOT RESEARCH PROJECT NO. 9407 FINAL REPORT GEORGIA DEPARTMENT " OF TRANSPORTATION STRATEGIES FOR '1 PROBLEM WEED CONTROL \ ON GRASS ROADSIDE" S OFFICE OF MATERIALS & RESEARCH RESEARCH AND DEVELOPMENT BRANCH Final Report of GDOT Research Project RP9407 Strategies for Problem Weed Control on Grass Roadsides Submitted by Tim R. Murphy Extension Weed Scientist Crop and Soil Sciences The Georgia Station Griffin, GA 30223-1797 Phone: 770-228-7300 FAX: 770-412-4774 E-MAIL: TMURPHY@AkCHES.UGA.EDU The contents ofthis report reflect the views ofthe author, who is responsible for the facts and accuracy ofthe data reported. The contents do not necessarily reflect the views or policies ofthe University ofGeorgia, the Georgia Department ofTransportation, or the Federal Highway Administration. This report does not constitute a standard, specification or regulation. The University of Georgia does not endorse products or manufacturers. Trade names of specific products are mentioned only because they are considered essential to the objectives ofthis project. The experiments reported in this document may involve the use of unregistered and/or experimental herbicides. Prior to using any herbicide, it is the responsibility ofthe end user to determine if the herbicide is labeled for use. TECHNICAL REPORT STANDARD TITLE PAGE 1. Report No. FHWA-GA-99-9407 2. Government Accession No. 4. Title and Subtitle Strategies for Problem Weed Control on Grass Roadsides 7. Author(s) Dr. Tim R. Murphy 3. Recipient's Catalog No. 5. Report Date March 1999 6. Perfonning Organization Code 8. Perfonning Organ. Report No.: 9407 9. Perfonning Organization Name and Address University of Georgia, Crop and Soil Sciences, The Georgia Station Griffin, Georgia 30223-1797 10. Work Unit No. 11. Contract or Grant No. 12. Sponsoring Agency Name and Address Georgia Depamnent ofTransportation No.2 Capitol Square Atlanta, Georgia 30334 13. Type of Report and Period Covered Final 1995-1999 14. Sponsoring Agency Code 15. Supplementary Notes Prepared in cooperation with the U.S. Depamnent of Transportation Federal Highway Administration 16. Abstract Field experiments were conducted over a four-year time period (1995-1998) to evaluate herbicides for the control of weeds on roadside grasses, woody ornamentals, and wildflowers. Imazapic (Imazapic Applicators Concentrate, Plateau) was found to be a suitable alternative to MSMA for bahiagrass management on bennudagrass roadsides. Depending upon the application rate, . imazapic controlled or suppressed bahiagrass growth and seedhead development. Bennudagrass displayed acceptable tolerance to imazapic. MaN 37536 effectively controlledjohnsongrass, and in a related experiment MaN 37536 did not adversely injure bahiagrass and common bennudagrass. No herbicide mixture evaluated provided significant winter weed control advantages over the use of glyphosate (Roundup Pro) + sulfometuron (Oust) + chlorsulfuron (Telar). However, the inclusion of dicamba (Vanquish), clopyralid (Transline), or (triclopyr) Garlon 3A with glyphosate alone or with glyphosate in combination with sulfometuron was effective for winter weed control and should be utilized as components ofa long-tenn herbicide rotation strategy. Hairy fleabane was effectively controlled with March applications of glyphosate + sulfometuron, glyphosate + sulfometuron + chlorsulfuron, clopyralid alone, or clopyralid in various mixtures with glyphosate, sulfometuron, or chlorsulfuron. Late May applications of triclopyr, clopyralid alone, or clopyralid tank-mixed with MSMA or glyphosate were the only herbicides that provided greater than 80% control of hairy fleabane. Three crimson clover cultivars exhibited excellent tolerance, including no effect on seed production, to DE-564 (diclosulam) applied at the vegetative growth stage. Crimson clover was not tolerant to imazapic. Wildflower species tolerant to prodiamine (Endurance) applied immediately after seeding were cornflower, California poppy, annual gailliardia, blackeyed susan, scarlet flax, scarlet sage, baby blue-eyes, annual coreopsis, and cosmos. Non-tolerant species included yarrow, baby's breath, com poppy, and lanceleaf coreopsis. 17. Key Words weeds, herbicides, grass roadsides, wildflowers, roadside vegetation management 19. Security Classif. (of this report) Unclassified 20. Security classif. (of this page) Unclassified Fonn DOT 1700.7 (8-69) !8. Distribution Statement No Restrictions 21. No. of Pages 206 22. Price INTRODUCTION Grass shoulders on roadsides play an important, ifnot irreplaceable, role in providing vehicle operators a safe and effective surface for emergency maneuvers. Additionally, roadside grasses prevent soil erosion, improve sight distance and improve the aesthetic appeal ofthe road. Bermudagrass (Cynodon dactylon), a low growing, creeping warm-season perennial, is the most commonly found grass on roadsides in Georgia. The low mowing requirement of bermudagrass, combined with its ability to grow over a wide range ofenvironmental conditions, make it the preferred grass species for roadsides in Georgia. Well-maintained bermudagrass is considered to be highly competitive with weeds. However, certain weed species have the ability to compete with bermudagrass for soil moisture, nutrients and sunlight. Additionally, bermudagrass becomes dormant during the late fall and winter months. As bermudagrass enters dormancy, winter annual weeds emerge and thrive due to the lack ofcompetition from dormant bermudagrass. The presence ofa high population oftallgrowing winter annual weeds decreases the attractiveness ofthe roadside and can also thin stands ofbermudagrass by providing competition during the spring green-up ofbermudagrass. The Georgia Department ofTransportation (GDOT) currently utilizes a combination of herbicides and mowing to manage vegetation on 120,000 acres ofroadsides. Herbicide costs in 1994 averaged $8.25 per acre, while mowing costs averaged $28.35. Grass roadsides managed by GDOT are mowed an average of 1.8 times per year, and depending upon the location average 3 to 4 herbicide applications per year. The approach ofintegrating the use ofmowing and herbicides has been successful in reducing the expenses associated with maintaining grass roadsides in Georgia. . . Vegetation management programs in Georgia were developed and implemented to gradually eliminate bahiagrass (Paspalum notatum), prevent seedhead production by tall fescue (Festuca arundinacea), and convert the species composition of the roadside to bermudagrass. These programs have been successful; however, information is needed on the efficacy and fit of newly registered herbicides for weed control. Additionally, because certain weed species are tolerant to the current herbicide program, new weed problems have developed. Therefore, additional research is needed to develop control programs for the various weed species that have recently begun to emerge as problem weeds on Georgia roadsides. Objectives: (1) To develop new control programs for winter annual and summer annual weeds, and address "new" problem weeds, such as Florida paspalum (Paspalumj/oridanum), musk thistle (Carduus nutans), annual sowthistle (Sonchus spp.) and hemp dogbane (Apocynum cannabiniJm):_' . 2 (2) To develop vegetation management programs that cause minimal injury ("brown-out") to bermudagrass. (3) To provide consultation to GDOT on present and future roadside vegetation management programs and issues. (4) Due to the need expressed by GDOT, additional research was conducted on the efficacy of herbicides for weed control in woody ornamentals and wildflowers. This research objective was not included in the original proposal to GDOT. Since the inception of this project (January 14, 1995),43 weed control experiments have been conducted. A summary of the results is presented for each experiment on pages 7 -22, with the corresponding data located on pages 26 - 206. Refer to the table ofcontents for the page number of each summary and coinciding data. Specific recommendations to GDOT, based largely upon these experiments, are shown on pages 23 - 24. Methodology All grass roadside and ornamental weed control experiments were conducted either on GDOT or county roadsides and ornamental beds or on Experiment Station properties. Application methods and dates oftreatment are noted for each experiment. Most data are presented using the format ofthe Pesticide Research Manager (PRM) software. Due to limited field lengths, this software uses a 5 letter code name (the Bayer code) for weed species. For example, the 5 letter code for bahiagrass is PASNO. An abbreviation section which lists the common and scientific name for each Bayer code weed name is shown on page 6. Weed control and roadside grass and ornamental injury ratings were recorded at various time intervals following herbicide application on a scale of 0 to 100. For weed control, 0 = no control, and ioo = complete control ofa problem weed species. For most weed species, a rating of80% would be considered acceptable control. For either roadside grass or ornamentals, injury was recorded on a scale of 0 to 100, where 0 = no injury and 100 = complete death of the roadside grass or ornamental. An injury rating of > 30, would not generally be acceptable in most situations. In some wildflower experiments, either percent (%) stand ratings or wildflower species counts were recorded. Additionally, bahiagrass seedhead suppression ratings are reported on a scale of 0 to 100, where 0 = no seedhead suppression and 100 = no bahiagrass seedheads present in plot area. Data from replicated experiments were statistically analyzed with ANOVA (analyses of variance procedures). LSD (least significant difference) at the 0.05 level was used to compare treatment means. 3 TABLE OF CONTENTS Roadside Grass Experiments 1995 1. Evaluation of Cadre for bahiagrass growth regulation [CADRE] 2. MSMA alternatives on roadsides [MSMA] 3. Musk thistle control on grass roadsides [MUSK] 4. Winter weed control on grass roadsides [1-20] Pages Summary, Data 7,26 7,32 7, 35 7,37 1996 5. Evaluation ofPlateau and Oust for winter weed control on grass roadsides [DOTLAM] 8, 41 6. Evaluation ofR6447 for winter weed control on bermudagrass roadsides [DOTLAM2] . 8, 46 7. Evaluation ofMON37555 on bermudagrass roadsides [MON-96] 8. Efficacy of Tordon K in Roundup + Oust and Roundup + Telar tank-mixes 8,49 for winter weed control on bermudagrass roadsides [WNK96ROl] 9,53 9. Comparisons of commercial mixtures ofRoundup, Oust, Telar with additions ofTordon 101M for winter weed control on bermudagrass roadsides [WNK96R02] 9,59 10. Winter weed control evaluations on bermudagrass roadsides [WNK96R03] 9, 65 11. Plateau for bahiagrass growth suppression in unimproved turf and roadsides using sequential applications [96PLATl] 10, 73 12. Plateau for common bermudagrass growth suppression in unimproved turf and roadsides using sequential applications [96PLAT2] . . . . . . . . . . . . . . . . . . . . . 10, 78 13. Highway 41/19 winter weed control comparisons [HWY41-19] . . . . . . . . . . . . . . . . . . 11, 84 1997 14. Evaluation ofDE-564 (diclosulam) in actively-growing roadside bermudagrass [DE564B] 11,88 15. Eyaluation ofDE-564 (diclosulam) for use for highway row weed control and grass release program compared to Roundup, Oust and Telar [DE564] 12, 93 16. Evaluation ofDE-564 in actively-growing roadside bahiagrass [DE564BAH] 12,97 17. Evaluation ofMON37536 for johnsongrass control in bermudagrass ROAD 197] 13, 101 18. Control ofwinter weeds using Veteran [VETERAN] 13, 104 19. R6447 tank-mixes for winter weed control on bermudagrass roadsides [USA-97-4 .. 13, 109 20. Evaluation ofPlateau and Oust for winter weed control on bermudagrass roadsides - 1997 [DOTLAM97] 14, 115 21. Efficacy of the "Weed-Bug" applicator for selective weed control in bermudagrass [WEEDBUG] 14,122 22. Evaluation ofPlateau and Roundup Pro for summer weed control on Highway 82 [HWY82] 15, 123 23. Evaluation ofPlateau tank-mixes on bermudagrass roadsides [WINTER2] 15, 125 4 1998 24. Hairy fleabane control in roadside bermudagrass [ROAD3-98] 25. Summer herbicide programs for hairy fleabane control [ROAD5-98] 26. Efficacy ofsulfoanilide herbicides for use on grass roadsides [98I3AOI8] 27. Tolerance of crimson clover varieties to imazapic and DE-564 [ROADI-98] 28. Tolerance of tall fescue to Plateau and DE-564 [ROAD2-98] Pages Summary, Data 16, 133 16, 139 16, 143 17, 149 18, 157 Wildflowers and Annual Flowers 1995 29. Evaluation ofprodiamine and metolachlor in established wildflowers [CORLEY] '" 18, 161 30. Tolerance of newly-seeded wildflowers to preemergence herbicides [CORLEYN] ... 18, 163 1996 31. Efficacy ofEndurance and Endurance combinations for weed control during wildflower establishment [FLOWERl] 32. Efficacy ofEndurance and Pennant for weed control during wildflower establishment [FLOWER2] 19, 168 19, 172 1997 33. Weed control and tolerance of direct-seeded wildflowers to Endurance 34. Tolerance of annual ornamentals to Basagran and Manage [HERBORN] 19, 175 20, 180 Woody Ornamentals 1995 35. Winter annual weed control in Georgia DOT ornamentals [GADOT1] 20, 184 1996 36. Acomparison of Surflan + Princep vs. Derby for winter weed control iIi Andorra juniper [WEEDOTl] , 37. Evaluation ofDerby and OmI for winter weed control in Andorra juniper 38. Evaluation ofOmI for winter weed control in Pfitzer juniper [WEEDOT2] 39. Efficacy of August applications of preemergence herbicides in woody ornamentals [DOTPRE7] 40. Winter weed in Georgia DOT ornamentals - second year [GADOTIB] 21, 188 21, 190 21, 191 21, 192 22, 194 1997 41. Effect of fall preemergence herbicides on yellow nutsedge control in ornamentals [970RNAM2] 42. Efficacy of fall + winter preemergence herbicides for winter weed control in roadside ornamentals [970RNAM1] 43. Fall preemergence herbicide combinations for roadside ornamentals [DOTPRE4] 22, 197 22,200 22,203 5 Bayer Code ACCGR ALLVI AMAZZ AMBEL AXOAF BRAPP CIRHO CASOB CRUNU CVNGS CYNDA CYPES DEDTO DIGSP ELEIN EPHNU ERmO ERICA ERLOP FESAR GALAP GALTI GERCA GNAZZ IPOHG. IPOLA IPOZZ WEED AND CROP LIST Common Name Slender Copperleaf Wild Garlic Pigweed Spp. Common Ragweed Carpetgrass Broadleaf Signalgrass Yellow Thistle Sicklepod Musk Thistle Tropic Croton Bermudagrass Yellow Nutsedge Florida Beggarweed Southern Crabgrass Goosegrass Nodding Spurge Hairy Fleabane Horseweed Centipede grass Tall Fescue Catchweed Bedstraw Marsh Bed Straw Carolina Geranium Cudweed Spp. EntireleafMorningglory Pitted Morningglory Morningglory Spp. Bayer Code Common Name IUPCO LACCA LACSE LOLMU LAMAM LAMPU LONJA OXAST OXAZZ PASNO PYHCA PLALA RUBZZ SETGE SETLU SIDSP SOLCA SONOL SOOVI SOOZZ SORRA TJDPE TRFCA VICZZ VIOZZ XANST Common Juniper Tall Lettuce Prickly Lettuce Italian Ryegrass Henbit Purple Deadnettle Japanese Honeysuckle Yellow Woodsorrel Woodsorrel Spp. Bahiagrass, 'Pensacola' Carolina False Dandelion Buckhorn Plantain Blackberry spp. Knotroot Foxtail Yellow Foxtail Prickly Sida Carolina Horsenettle Annual Sowthistle Goldenrod Goldenrod Spp. Johnsongrass Venus Lookingglass Large Hop Clover Vetch Spp. Violet Spp. Cocklebur 6 SUMMARY Roadside Grass Experiments - 1995 1. Evaluation of Cadre for bahiagrass growth regulation. At the time this experiment was conducted Cadre was the trade name for imazapic, the active ingredient currently being marketed under the trade names of Plateau and Imazapic Applicators Concentrate. Cadre is now registered for use on peanuts. Cadre at all rates evaluated provided2: 83% bahiagrass seedhead suppression at the July 18, 1995 (11 weeks after treatment) evaluation. However, at Cadre rates 2: 0.063 lbs. ai/acre, the stand (density) ofbahiagrass was reduced 2: 20% at this evaluation. Tank-mixes of Cadre with Roundup, pendimethalin, Vanquish, 2.4-n, and Arsenal also effectively reduced bahiagrass growth. This experiment showed that the active ingredient in Cadre, imazapic, can be used to manage bahiagrass growth; however, rates < 0.063 lbs. ai/care should be used unless the objective was to reduce the stand or density ofbahiagrass. Data shown on p. 26. 2. MSMA alternatives on roadsides. This non-replicated experiment was conducted utilizing a GnOT spray truck to evaluate potential replacements to the current GnOT summer herbicide, MSMA. Tank mixtures ofRoundup at rates of 0.25 to 0.375 lbs. ai/acre with MSMA provided better control of crabgrass and yellow foxtail than MSMA applied alone. However, the addition of Roundup to MSMA increased injury to bermudagrass over that obtained by MSMA. Plateau at 0.63 lbs. ai/acre injured bermudagrass more than MSMA at 14 and 30 days after treatment. Weed populations were not uniform; however, it was observed that Roundup at 0.3125 + MSMA at 1.5 lbs. a/acre and Roundup at 0.375 + MSMA at 1.0 Ibs. a/acre effectively controlled hairy fleabane. Data shown on p. 32. 3. Musk thistle control on grass roadsides. This non-replicated experiment showed that Roundup + Oust + Telar, Garlon 4 + Tordon, and Oust + Telar + Tordon effectively controlled musk thistle and Japanese honeysuckle when applied in mid-March. Roundup + Oust + Telar injured bermudagrass, as expressed as delayed greenup, more than Garlon 4 + Tordon, and Oust + Telar + Tordon. Garlon 4 + Tordon did not injure tall fescue; however, severe injury occurred with Roundup + Oust + Telar and Oust + Telar + Tordon. A combination of Tordon with Garlon 4 or with Oust + Telar provided better blackberry control than Roundup + Oust + Telar. No herbicide combination effectively controlled trailing dewberry. Data shown on p. 35. 4. Winter weed control on grass roadsides. This experiment was conducted to determine the efficacy of various combinations ofTordon, Garlon 4, Transline and Vanquish in combination with Roundup for winter weed control. Bermudagrass injury was < 22% for all herbicide combinations at the May 16, 1995 evaluation. Fescue control ranged from 50 to 88% at the May 16, 1995 evaluation; however, by June 26, 1995 tall fescue had completely recovered and no injury was apparent. At the June 26, 1995 evaluation, buckhorn plantain (pLALA) was controlled with all herbicide combinations with the exception of Roundup + Vanquish (67% control). Carolina horsenettle (SOLCA) populations were highly variable on this site and control ranged from 43 to 98% at the June 26, 1995 evaluation. Because of the variable Carolina 7 horsenettle populations, no statistically significant difference between treatments were detected. All herbicide combinations effectively controlled horseweed (ERICA). Data shown on p. 37. Roadside Grass Experiments -1996 5. Eyaluation of Plateau and Oust for winter weed control on grass roadsides. The objective of this experiment was to compare the effect ofPlateau and Oust, applied at high labeled rates, on the spring green-up of roadside bermudagrass when applied during the late fall to early spring time frame. Plateau at 0.094 and 0.156Ibs. ai/acre did not affect the spring green-up of bermudagrass (CYNDA) except when applied on March 14, 1996. In contrast, with exception of Oust applied at 0.046Ibs. ai/acre applied on November 9, 1995, Oust decreased bermudagrass green-up. At the April 26, 1996 evaluation, bermudagrass green-up was still being delayed by Oust applied in mid-November at 0.074Ibs. ai/acre, or when applied at either rate in midDecember, mid-January, mid-February and mid-March. However, by the May 29, 1996 evaluation or approximately 30 days later, bermudagrass had recovered from Oust injury and no delayed green-up was apparent. This experiment showed that Plateau affects bermudagrass green-up less than Oust. Both Plateau and Oust provided acceptable control of wild garlic (ALLVI), except when applied in mid-March. Additionally, both Plateau and Oust controlled Carolina geranium (GERCA). Venus lookingglass (TJDPE) control tended to be higher when Plateau and Oust were applied from mid-December through mid-March than when applied in midNovember. Annual sowthistle (SONOL) was not effectively controlled with Oust. Control of annual sowthistle with Plateau ranged from 47 to 85%. Data shown on p. 41. 6. Evaluation ofR6447 for winter weed control on bermudagrass roadsides. R6447 is an experimental preemergence herbicide being developed by DuPont for use on grass roadsides and other noncropland areas. R6447 at rates that ranged from 0.25 to 0.75 lbs. ai/acre provided good control of wild garlic (ALLVI), excellent control of annual sowthistle (SONOL) and did not affect the spring green-up of bermudagrass. Oust at rates of 0.046 and 0.092Ibs. ai/acre controlled wild garlic, but did not control annual sowthistle. Additionally, Oust at 0.092 lbs. ai/acre decreased the spring green-up of bermudagrass. Data shown on p. 46. 7. Eyaluation ofMON37555 on bermudagrass roadsides. MON37555 is an experimental postemergence herbicide currently under development by Monsanto. The objective of this experiment was to determine the tolerance of bermudagrass and bahiagrass to mid-June applications ofMON37555 applied alone or in combination with Roundup and Plateau. Both bermudagrass (CYNDA) and bahiagrass (PASNO) exhibited acceptable tolerance to MON37555. Injury to these roadside grasses was higher when MON37555 was tank-mixed with Roundup or Plateau than when MON37555 was applied alone. MON37555 provided only short term (34 days) suppression ofbahiagrass seedheads. A tank-mix ofPlateau at 0.063 lbs. ai/acre + MON37555 at 0.03 lbs. ai/acre was highly effective for bahiagrass seedhead suppression. Data shown on p. 49. 8 8. Efficacy of Thrdon K in Roundup + Oust and Roundup + Telar tank-mixes for winter weed control on bennudagrass roadsides. The objective ofthis experiment was to compare the effectiveness of Tordon K applied in combination with Roundup + Oust or Roundup + Telar to the current GDOT winter weed control standard, Roundup + Oust + Telar, for winter weed control and effect on spring green-up of bermudagrass. All herbicide combinations provided excellent control of Japanese honeysuckle (LONJA), Carolina geranium (GERCA), marsh bedstraw (GALT!), goldenrod spp. (SOOZZ) and horseweed (ERICA). The addition of Oust to various tank mixtures improved the control ofwild garlic (ALLVI). Nodding spurge (EPHNU) and tropic croton (CVNGS) was controlled by all herbicide combinations except Roundup + .Tordon. Annual sowthistle (SONOL) was controlled by all herbicide combinations except Roundup + Oust + Telar. No herbicide combination significantly affected the spring green-up of bermudagrass. All herbicides injured tall fescue at the April 25, 1996 evaluation; however, by May 31, 1996 tall fescue had completely recovered and no injury was apparent. Data shown on p.53. 9. Comparisons of commercial mixtures of Roundup. Oust. Telar with additions of Tordon 101M for winter weed control on bermudagrass roadsides. Tordon 101M is a Dow AgroSciences product that contains picloram and 2,4-D. The objective ofthis experiment was to compare the effectiveness ofTordon 101M applied in combination with Roundup + Oust or Roundup + Telar to the current GDOT winter weed control standard, Roundup + Oust + Telar, for winter weed control and effect on spring green-up ofbermudagrass. All herbicide combinations provided equivalent control of Japanese honeysuckle (LONJA), Carolina geranium (GERCA), goldenrod spp. (SOOZZ) and horseweed (ERICA). The addition of Oust to various tank mixtures improved the control ofwild garlic (ALLVI). At the final evaluation on June 27, 1996, only Roundup + Oust + Tordon 101M effectively controlled nodding spurge (EPHNU). Tropic croton (CVNGL) was controlled by all herbicide combinations except Roundup + Tordon 101M and Roundup + Telar +Tordon 101M. Annual sowthistle (SONOL) was controlled by all herbicide combinations except Roundup + Oust + Telar and Roundup + Oust + Telar +Tordon 101M. Prickly sida (SIDSP) control ranged from 43 to 75% and no statistically significant differences in control were detected among the various herbicide treatments. No herbicide combination significantly affected the spring green-up of bermudagrass. All herbicides injured tall fescue at the April 25, 1996 evaluation; however, by May 31, 1996 tall fescue had completely recovered and no injury was apparent. Data shown on p. 59. 10. Winter weed control evaluations on bennudagrass roadsides. The objective of this experiment was to determine if the addition ofVanquish or Gadon 4 to Roundup + Oust + Telar, Roundup + Telar or Roundup + Oust would improve the control of winter broadleafweeds. Due to the spatial variability of Japanese honeysuckle (LONJA) on the experimental site, it was not possible to collect data for Roundup + Oust + Vanquish and Roundup + Oust + Garlon 4. All other herbicide combinations effectively controlled Japanese honeysuckle. Good to excellent control of Carolina geranium (GERCA), goldenrod spp. (SOOZZ), marsh bedstraw (GALT!), horseweed (ERICA), tropic croton (CVNGS) and prickly sida (SIDSP) occurred with all herbicide combinations. Compared to the current GDOT winter weed control tank mix of 9 Roundup + Oust + Telar, there was no advantage of tank mixing either Vanquish or Garlon 4 with Roundup + Oust + Telar, Roundup + Telar or Roundup + Oust for the previously mentioned group of weeds. Roundup + Telar tank mixed with Vanquish or Garlon 4 provided less control of wild garlic (ALLYl) than the other herbicide combinations at the May 25, 1996 evaluation. All herbicide combinations provided equivalent levels of nodding spurge (EPHNU) control. When compared to the current GDOT standard tank mix of Roundup + Oust + Telar, only the tank mix of Roundup + Telar + Vanquish improved the control of annual sowthistle (SONOL). With the exception of annual sowthistle, the use of either Vanquish or Garlon 4 in combination with Roundup + Oust + Telar, Roundup + Telar or Roundup + Oust did not improve winter broadleaf weed control over that obtained with Roundup + Oust + Telar. No herbicide combination significantly affected the spring green-up of bermudagrass. All herbicides injured tall fescue at the April 25, 1996 evaluation; however, by May 31, 1996 tall fescue had completely recovered and no injury was apparent. Data shown on p. 65. 11. Plateau for bahiagrass growth suppression in unimproved turf and roadsides using sequential applications. The objective of this experiment was to determine the length of bahiagrass growth reduction and seedhead suppression from single and sequential applications of Plateau. A single application ofPlateau at 0.048 and 0.063 lbs. ai/acre on May 6, 1996 provided 77 and 80 %, respectively, bahiagrass (PASNO) seedhead suppression on August 28, 1996 (114 days after application). Height decrease, which is a direct reflection ofgrowth reduction, averaged approximately 34% for the two previously mentioned rates of Plateau. Due to the excellent seedhead suppression provided by Plateau at 0.048 or 0.063 Ibs. ai/acre, applied on May 6, no mowing would have been necessary on this site during the summer months. Repeating the Plateau application on July 29, 1996 increased bahiagrass seedhead suppression and vegetative height reduction over that obtained with a single early May application. However, the severe bahiagrass color decrease (injury expressed as yellowing ofbahiagrass foliage) and stand decrease observed on August 28, 1996 indicates that the use of repeat applications of Plateau on bahiagrass during the growing season may not be advisable if bahiagrass is the desired roadside grass. However, in mixed stands ofbermudagrass and bahiagrass, the use of repeat applications of Plateau would be an effective strategy for reducing bahiagrass infestations. Data shown on p. 73. 12. Plateau for common bermudagrass growth suppression in unimproved turf and roadsides using sequential applications. The objective of this experiment was to determine the tolerance of roadside bermudagrass to single and sequential applications of Plateau during the summer months. The experimental site was located in Pike County and was under severe drought stress during the majority of the duration of the experiment. Bermudagrass (CYNDA) displayed acceptable tolerance 30% color decrease) to Plateau at the July 22, 1996 (34 days after the initial application). At this same evaluation Plateau at all rates provided 92 to 100% bahiagrass (PASNO) seedhead suppression. The repeat application ofPlateau was not made until August 19, 1996. Repeating the application ofPlateau improved bermudagrass seedhead suppression on September 20, 1996 when compared to single applications. However, seedhead suppression ranged only from 30 to 36% for the repeat applications ofPlateau. Plateau is more effective in suppressing seedhead emergence on bahiagrass than on bermudagrass. At the September 20, 10 1996, bahiagrass seedhead suppression ranged from 98 to 100% for both single and sequential applications ofPlateau. This experiment showed that bermudagrass has sufficient tolerance to Plateau to permit either single or sequential (2) applications during the summer months, and that Plateau effectively suppressed bahiagrass seedhead development and vegetative growth. Data shown on p. 78 . 13. Highway 41/19 winter weed control comparisons. This non-replicated experiment was conducted utilizing a GDOT spray truck to evaluate potential replacements to the current GDOT winter herbicide tank mix, Roundup + Oust + Telar. Percent bermudagrass green-up, tall fescue injury, and the presence (yes) or absence (no) of three weed species were assessed at five randomly selected areas within a specific treatment area. Roundup + Oust + Telar (treatment 1) will be referred to as the GDOT standard for brevity purposes in this summary. Compared to the GDOT standard, Roundup Pro + Tordon (treatment 2) , and Roundup Pro + Telar + Tordon (treatment 3) affected bermudagrass green-up less and injured tall fescue less at 42 days after treatment (DAT). No differences in bermudagrass or tall fescue tolerance was evident by 78 DAT. Roundup Pro + Tordon and Roundup Pro + Telar + Tordon provided better control of sowthistle and prickly lettuce than the GDOT standard. None of these herbicide combinations provided acceptable control ofbuckhorn plantain. Roundup Pro +Telar + Garlon 4 (treatment 4) and Roundup + Telar + Vanquish (treatment 5) affected bermudagrass green-up less and injured tall fescue less than the GDOT standard at 42 DAT. No differences in bermudagrass or tall fescue tolerance was evident by 78 DAT. There was essentially no difference in sowthistle, prickly lettuce and buckhorn plantain control between Roundup Pro + Telar + Garlon and Roundup + Telar + Vanquish and the GDOT standard. Plateau at 9.0 oz. product/acre (treatment 6) and at 4.5 oz. product/acre (treatment 7) decreased bermudagrass green-up more than the GDOT standard at both 42 and 78 DAT. Additionally, Plateau at 9.0 oz. product/acre killed tall fescue (100% injury). At the 4.5 oz. product/acre rate ofPlateau tall fescue injury ranged from 40 to 60 % at 78 DAT. Weed populations were highly variable, and no clear differences in control were readily evident between the Plateau treatments and the GDOT standard. This nonreplicated experiment, in which herbicide treatments were applied with a GDOT spray truck, showed that combinations of Tordon with Roundup Pro, or with Roundup Pro + Telar and combinations of Vanquish or Garlon 4 with Roundup + Telar have less effect on the spring green-up of bermudagrass than the current GDOT standard, and provide better or equivalent control ofsowthistle, prickly lettuce and buckhorn plantain. Data shown on p. 84. Roadside Grass Experiments - 1997 14. Evaluation of DE-564 (diclosulam) in actiyely-growing bermudagrass. DE-564 is a Dow AgroSciences experimental herbicide that is being investigated for use on grass roadsides. DE564 contains the active ingredient diclosulam, and will probably be registered for use first in peanuts under the trade name of StrongArm. The objective of this experiment was to determine the tolerance of roadside bermudagrass and weed control efficacy ofDE-564 when applied during the summer months. DE-564 injured bermudagrass (CYNDA) less at 11 and 26 days after application (DA-A) than Plateau and Oust. However at 56 DA-A, DE-564 at 52 and 70 g ai/ha 11 injured, as expressed by foliage discoloration, bermudagrass more than Plateau and Oust. In contrast, bermud~grass growth suppression was decreased more by Plateau and Oust than by DE564 at both 56 and 82 DA-A. DE-564 at all rates and Plateau at both rates provided good (>80%) control of marsh bedstraw (GALT!) at 26 DA-A. Oust and MSMA did not control marsh bedstraw. No herbicide effectively controlled buckhorn plantain (pLALA). At 82 DA-A, all herbicides, except Plateau at 105 g ai/ha controlled horseweed (ERICA). Knotroot foxtail (SETGE) and nodding spurge (EPHNU) was not controlled by any herbicide at 82 DA-A. DE564 demonstrated excellent (>90%) of slender copperleaf(ACCGR) and pitted morningglory (IPOLA) at 82 DA-A. Data shown on p. 88. 15. Evaluation 0(E-564 (diclosulam) for use (or highway ROW weed control and grass release program compared to Roundup. Oust and Telar. DE-564 is a Dow AgroSciences experimental herbicide that is being investigated for use on grass roadsides. DE-564 contains the active ingredient diclosulam, and will probably be registered for use first in peanuts under the trade name of StrongArm. The objective ofthis experiment was to determine the tolerance of roadside bermudagrass and weed control efficacy ofDE-564 when applied in March. The GDOT winter herbicide tank-mix, Roundup + Oust + Telar, was included for comparison purposes. Herbicides were applied on March 21, 1997 when bermudagrass was in the 50% green-up growth stage. At 28 DA-A (days after application), DE-564 applied alone affected bermudagrass (CYNDA) green-up less than Roundup + Oust + Telar, Oust + Telar, and DE-564 combinations with Roundup. At both 61 and 83 DA-A, no herbicide affected bermudagrass green-up. All herbicides provided excellent control oflarge hop clover (TRFCA) at 28 DA-A. At 61 DA-A, DE-564 applied alone, or in combination with Roundup, Roundup + Oust + Telar, and Oust + Telar, effectively controlled tall lettuce (LACCA). Marsh bedstraw was controlled at 61 DA-A with the previously listed herbicides, with the exception of Oust + Telar which provided only 10% control. Horseweed (ERICA) was controlled by all herbicides. At 110 DA-A, southern crabgrass (DIGSP) density was greater in all herbicide plots than in the untreated check. Data shown on p. 93. 16. Evaluation 0(E-564 (diclosulam) in actively-growing roadside bahiagrass. DE-564 is a Do_w AgroSciences experimental herbicide that is being investigated for use on grass roadsides. DE-564 contains the active ingredient diclosulam, and will probably be registered for use first in peanuts under the trade name ofStrongArm. The objective ofthis experiment was to determine the effectiveness ofDE-564 in regulating the growth and seedhead emergence of roadside bahiagrass. DE-564 at all rates injured bahiagrass (PASNO) less at 26 DA-A (days after . application) than Plateau and Oust. However, at 26 DA-A, DE-564 was ineffective 15%) in suppressing bahiagrass seedhead emergence. In contrast, Plateau and Oust provided >99% bahiagrass seedhead suppression at 26 DA-A. It was not possible to collect bahiagrass seedhead suppression at 59 DA-A, since the test site was inadvertently mowed by the county roadside department. At 59 DA-A, only Plateau and Oust decreased bahiagrass stand density. This experiment showed that DE-564 would not be an effective herbicide for bahiagrass growth regulation. However, bahiagrass exhibited good tolerance to DE-564 which indicates that this herbicide could be used for weed control in bahiagrass roadside turf Data shown on p. 97. 12 17, Evaluation of MON37536 for johnson&rass control in roadside bermudagrass . MON37536 is a postemergence herbicide that is being developed by Monsanto for use on roadside turf Previous research has shown that bermudgrass has excellent tolerance to this herbicide. The objective of this experiment was to determine the effectiveness ofMON37536 for the control ofjohnsongrass. At 56 DA-A, MON37536 at 1.33 oz. product/acre provided the highest level (92%) control ofjohnsongrass. At 56 DA-A, MSMA at 3.0 pts. product/acre provided only 67% johnsongrass control.. MON37536 and MSMA did not control southern crabgrass (DIGSP) at 56 DA-A. The addition ofRoundup Pro at either 8 or 12 oz. product/acre significantly increased the control of southern crabgrass over that obtained with MON37536 or MSMA. This experiment showed that MON37536 is an effective herbicide for johnsongrass control; however, it will be necessary to include low rates of Roundup Pro or another suitable herbicide in order to control southern crabgrass. Data shown on p. 101. 18, Control of winter weeds usin& veteran. Veteran lOG is a granular herbicide that contains 10% dicamba. Veteran 2010 Contains 1.25 and 2.5Ibs. ofdicamba and MCPA, respectively, per gallon of formulated product. The objective of this experiment was determine the efficacy of Veteran and Veteran 2010 for winter weed control on a grass roadside. At 44 DA-A (days after application), Veteran, Veteran 2010 and Roundup + Oust +Telar provided equivalent control of wild garlic (ALLVI), Carolina geranium (GERCA), cudweed spp. (GNAZZ), yellow thistle (CIRHO) and goldenrod spp. (SOOZZ). No differences in bermudagrass (CYNDA) or bahiagrass (PASNO) green-up was observed among these treatments at 44 DA-A. Excellent control oflarge hop clover (TRFCA) and wild lettuce (LACZZ) was observed with all herbicides 70 DA-A. Data shown on p. 104. 19, R6447 tank-mixes for winter weed control on bermudagrass roadsides. R6447 is an experimental preemergence herbicide being developed by DuPont for use on grass roadsides and other noncropland areas. The objective of this experiment was to determine the efficacy of various R6447 tank mixtures for the control ofweeds on a mixed tall fescue, bermudagrass and bahiagrass roadside. For purposes of brevity, weed control data will be discussed for only the 84 and 162 days after application (DA-A) evaluations. R6447 applied alone or in combination with Roundup did not affect the spring green-up of bermudagrass at 59 DA-A. However, Oust, and R6447 + Oust tank-mixes decreased bermudagrass green-up at 59 DA-A. All herbicides moderately to severely injured tall fescue (FESAR) at 59 and 84 DA-A. Oust applied alone, or in combination with R6447, generally injured bahiagrass (PASNO) more than R6447 applied alone or in combination with Roundup. R6447 applied alone did not control goldenrod spp. (SOOZZ) as this weed had already emerged at the time oftreatment on January 27, 1997. Roundup, Oust and tank-mixtures ofR6447 with these two previously mentioned herbicides provided equivalent levels of goldenrod spp. control at 84 DA-A. At 162 DA-A, tank-mixtures ofR6447 with Roundup or Oust provided better control of horseweed (ERICA) than R6447 applied alone. R6447 applied at rates that ranged from 0.125 to 0.5 lbs. ai/acre provided 78 to 97% southern crabgrass (DIGSP) control at 162 DA-A. However, control of knotroot foxtail (SETGE) was poor with R6447 applied alone or in combination with Oust or Roundup. Compared to the untreated check no herbicide affected the density ofbahiagrass, tall fescue or bermudagrass at 162 13 DA-A. Data shown on p. 109. 20. Evaluation of Plateau and Oust for winter weed control on grass roadsides - 1997. The objective of this experiment was to compare the effect ofPlateau and Oust, applied at high labeled rates for two consecutive years on the spring green-up of roadside bermudagrass when applied during the late fall to early spring time frame. Plateau at 0.094 and 0.156 lbs. ai/acre did not affect the spring green-up of bermudagrass (CYNDA) except when applied on March II, 1997 [see CYNDA green-up at 152 DA-A (days after application)]. In contrast, with exception of Oust applied at 0.046 or 0.92Ibs. ai/acre applied on November 20, 1996, Oust decreased bermudagrass green-up at 152 DA-A. At the May 21, 1997 evaluation or 182 DA-A, bermudagrass green-up was still being delayed by Oust applied in mid-January or mid-February at 0.074Ibs. ai/acre, or when applied at either rate in mid-March, and by Plateau applied in midMarch. This experiment showed that Plateau affects bermudagrass green-up less than Oust. However, Plateau applied in mid-March to plots that had received the same treatment the year before affected bermudagrass green-up for a longer period of time than was observed the previous year. This two year experiment showed that high labeled rates of Plateau and Oust could be used for winter weed control on bermudagrass roadsides. However, to avoid delays in bermudagrass spring green-up, Oust at these rates should only be applied in November or December. Plateau could be applied from November through mid-February; however, applications during March should not be used unless some delay in bermudagrass spring green-up is acceptable. Both Plateau and Oust provided acceptable control of wild garlic (ALLYl).. Additionally, both Plateau and Oust controlled Carolina geranium (GERCA). Plateau provided better Venus lookingglass (TJDPE) control than Oust. As was observed the previous year, annual sowthistle (SONOL) was not effectively controlled with Oust. Control of annual sowthistle with Plateau ranged from 57 to 85%. Oust provided better control of horseweed (ERICA) than Plateau at 182 DA-A. MidNovember through mid-January applications ofPlateau were not as effective as Oust applied during the same time frame in controlling common ragweed (AMBEL) at 182-DA-A. However, when applied either in mid-February or mid-March, Plateau and Oust were equally effective in controlling this weed. Data shown on p. 115. 21. Efficacy of the "Weed-Bug" applicator for selective weed control in bermudagrass. The Weed-Bug is a new type of tractor-mounted application equipment that was designed by an Australian company to improve the selective application ofRoundup on grass roadsides. The Weed-Bug uses hydraulically spinning disks with a radial arrangement of porous ropes to uniformly apply Roundup. Wiping height of the spinning disks may also be hydraulically controlled. A non-replicated experiment was conducted on June 3, 1997 with representatives of the Weed-Bug company to evaluate the potential ofthe Weed-Bug for the selective removal of weeds on a grass roadside. A 50% v/v solution of Roundup was used. On July 8, 1997, or approximately 35 days after application (DA-A), and on August 8, 1997, or approximately 65 DA-A, Roundup, applied with the Weed-Bug provided good to excellent control of prickly lettuce, panicum spp., Florida paspalum, hemp dogbane, knotroot foxtail and weeping lovegrass. However, tall fescue was severely injured (> 85%) at both 35 and 65 DA-A. The severe tall fescue injury can be attributed to the fact the experimental sites had not been mowed before 14 treatment, and thus tall fescue foliage and seedhead were contacted by Roundup. Bermudagrass injury ranged from 30 to 80% at 35 DA-A, and from 10 to 75% at 65 DA-A. The slight to severe injury to bermudagrass occurred due to contact of bermudagrass foliage by the spinning disk, and transfer ofRoundup from treated weed foliage to desirable grasses by tractor tires. This nonreplicated experiment showed that Weed-Bug could be used for the control of problem weeds such as hemp dogbane, Florida paspalum and weeping lovegrass. However, careful attention to wiping height of the spinning disks needs to be carefully monitored in order to avoid severe injury to desirable roadside grasses. Data shown on p. 122. 22. Evaluation of Plateau and Roundup Pro for summer weed control on Highway 82. This non-replicated experiment was conducted to evaluate the efficacy of tank-mixtures of Plateau and Roundup Pro for summer weed control on a grass roadside. MSMA at 3.0 pts.lacre, the standard GDOT summer herbicide, was included for comparison purposes. All herbicides were applied with a GDOT spray truck on June 19, 1997. MSMA was reapplied by GDOT personnel on July 25, 1997. Weed control, bahiagrass seedhead suppression, and bermudagrass tolerance was evaluated at 25 days after application (DA-A) on July 14 and at 53 DA-A on August 11, 1997. Plateau + Roundup Pro tank mixtures and Roundup Pro injured bermudagrass more than MSMA at 25 DA-A. The injury from Plateau + Roundup Pro at 4.0 + 4.0 oz.lacre and Roundup Pro at 8.0 oz.lacre was < 20% and would be acceptable. The injury from other Plateau + Roundup Pro treatments was 30% which would be marginally acceptable. By 53 DA-A no injury was evident for any herbicide treatment. Two applications ofMSMA provided excellent (> 90%) control of knotroot foxtail at 53 DA-A. However, a single application of Plateau + Roundup Pro at 4.0 + 4.00z.lacre, Plateau + Roundup Pro at 4.0 + 8.0 oz.lacre, and Roundup Pro at 8.0 ozlacre also provided excellent (> 90%) knotroot foxtail control. No herbicide effectively controlled hairy fleabane. Weed populations were not uniform at the site; however, it was observed at 53 DA-A that Plateau + Roundup Pro at 4.0 + 8.0 oz.lacre provided 100% bahiagrass seedhead suppression. Data shown on p. 123. 23. Evaluation of Plateau tank-mixes on bermudagrassroadsides. The objective of this experiment was to determine the efficacy ofPlateau tank mixtures with Roundup Pro and Garlon 3A or Transline for winter weed control on a grass roadside. The GDOT standard winter herbicide tank mix, was included for comparison purposes. There was no differences in bermudagrass green-up, wild lettuce (LACCA), and Carolina geranium (GERCA) control among herbicide combinations at 44 DA-A. At 70 DA-A, there was no differences among herbicide combinations for the control of large hop clover (TRFCA) and venus lookingglass (TJDPE). All Plateau tank-mixtures controlled horseweed (ERICA) to that achieved with Roundup Pro + Oust + Telar at 70 DA-A, with the exception of Roundup Pro + Plateau + Garlon 3A at 0.25 + 0.063 + 0.5 lbs. ai/acre. Plateau tank-mixtures with Roundup Pro and Garlon 3A were not effective in controlling (pHYCA) at 70 DA-A. Roundup + Oust + Telar and all combinations of Plateau and Transline provided excellent (> 90%) control of Carolina falsedandelion at 70 and 99 DA-A. At 99 DA-A, control of wild lettuce with all Plateau tank mixtures was equivalent to Roundup Pro + Oust + Telar with the exception of Roundup Pro + Plateau + Transline at 0.25 + 0.032 + 0.045 Ibs. ai/acre. Roundup Pro + Oust + Telar provided 100% control of horseweed at 99 DA-A. 15 Only the tank mixtures of Roundup Pro + Plateau with Transline at a rate ofO.09Ibs. ai/acre controlled horseweed equivalent to that achieved with Roundup Pro + Oust + Telar. Overall, this experiment showed that Roundup Pro + Plateau + Transline tank mixtures provide a level of weed control similar to that of Roundup Pro + Oust + Telar. However, Transline should be used at a rate ofO.09Ibs. ai/acre. Data shown on p. 125. Roadside Grass Experiments - 1998 24. Hairy fleabane (ERlBO) control in roadside bermudagrass (CYNDA). This experiment was conducted to evaluate herbicides for the control of hairy fleabane (ERIBO). Herbicides were applied in late March to hairy fleabane that was 2 to 3 inches in diameter. All herbicides, with the exception ofRoundup Pro + Sencor, or Roundup Pro + the low rate ofKarmex, provided 2: 85% hairy fleabane control at all evaluations. The GnOT standard winter treatment of Roundup + Oust or Roundup + Oust + Telar was-as effective as the other herbicides in controlling hairy fleabane. No herbicide combination effectively controlled Italian ryegrass. However, Roundup Pro alone or in combination with Oust, Telar, Oust + Telar, Transline, Oust + Transline, or Telar + Transline provided 2: 90% suppression ofItalian ryegrass seedheads. Additionally, all herbicides except Roundup Pro + the low rate of Sencor controlled 2: 80% spiny sowthistle. Bermudagrass was at the 10% spring green-up growth stage when herbicides were applied. However, no herbicide, including Roundup Pro alone or in combination with herbicides adversely injured bermudagrass. This experiment showed that when applied to hairy fleabane at the 2 to 3 inch diameter growth stage, that several herbicides, including the GnOT standard treatment, will effectively control hairy fleabane. Data shown on p. 133. 25. Summer herbicide programs for hairy fleabane (ERlBO) control. This experiment was conducted to evaluate early summer herbicide applications for the control of hairy fleabane (ERIBO). Herbicides were applied in late May to hairy fleabane that was 5 to 7 :s inches in height. Common bermudagrass injury was 8% with all herbicides, including Roundup Pro alone or in combination with other herbicides. Only Garlon 3A provided> 80% control of hairy-fleabane at the June 10, 1998 (12 days after application) evaluation. However, at the June 29 evaluation (31 days after application), Garlon 3A at both rates, Escort at 0.02 lbs. Ai/acre, MSMA + Garlon 3A at 0.5 lbs. Ai/acre, MSMA + Transline at 0.094 lbs. Ai/acre and Roundup Pro with either Garlon 3A or Transline controlled 2: 80% of the hairy fleabane. The previously mentioned herbicides, plus both rates of Transline applied alone also provided> 80% hairy fleabane control at the August 12 evaluation (75 days after application). This experiment showed that early summer applications of GarIon 3A, Transline, MSMA + high rates of Garlon 3A or Transline, and Roundup Pro + Garlon 3A or Transline will provide acceptable levels of hairy fleabane control. Data shown on p. 139. 26. Efficacy of sulfoanilide herbicides for use on grass roadsides. This experiment was conducted to evaluate sulfonanilide herbicides currently being developed by nowAgrosciences for use on grass roadsides. Plateau (imazapic), MSMA and fluroxypyr were also included in this 16 experiment. Herbicides were applied to a grass roadside (mixture of common bermudagrass, tall fescue and bahiagrass) on May 23, 1998. With the exception of Plateau (27%) on May 26, 1998 (13 days after application), no herbicide adversely injured common bermudagrass. Plateau also caused significant injury to tall fescue and bahiagrass at all evaluations. However, Plateau is labeled for the control of tall fescue and bahiagrass and should not be used on grass roadsides unless the management objective is to control these species. Low rates of Plateau are also labeled for suppression ofbahiagrass seedheads. MSMA also caused severe injury to bahiagrass. Only fluroxypyr [a herbicide in the same chemical family as triclopyr (Garton) and Transline (clopyralid)] provided good to excellent control of marsh bedstraw (GALTI). At the July 7, 1998 evaluation (55 days after application), all herbicides except MSMA and the high rate ofDE-498 controlled spotted spurge (EPHNU). However, by August 26 (105 days after application) only DE-570 at 70 gm ai/ha, DE-498 at 35 and 70 gm ailha, and Plateau provided ~ 90% control of spotted spurge. Herbicides that effectively controlled (~85%) prickly sida (SIDSP) were DE564, DE-498, fluroxypyr, DE-511, DE-565 and Plateau. Only DE-564 at the high rate, and fluroxypyr controlled tropic croton (CVNGS). Red morningglory (IPOCC) was controlled (> 85%) by DE-564, DE-570, DE-498 at 70 gm ai/ha, fluroxypyr at 140 gm ai/ha, DE-511, DE-565 and Plateau. Pineweed (HYPGE) was controlled only by fluroxypyr. Data shown on p. 133. 27. Tolerance of crimson cloyer varieties to imazapjc and DE-564. Field observations showed in an earlier grass roadside herbicide trial that crimson clover appeared to be tolerant to D&564. An experiment was conducted in 1998 to evaluate the tolerance of three crimson clover varieties ('Tibbee', 'Dixie' and 'Robin') to DE-564 and Plateau (imazapic). Herbicides were applied on March 19, 1998 to crimson clover in the vegetative growth stage. Herbicides were also applied on April 13 to crimson clover that was in the mid-bloom (Tibbee, Dixie) and full bloom (Robin) growth stage. Both rates ofPlateau severely injured all crimson clover varieties when applied at the vegetative growth stage. At the May 11, 1998 evaluation (81 days after application), Plateau injury ranged from 60 to 96%. This amount of injury would be unacceptable and is quite surprising as Plateau is labeled for use on crimson clover. In contrast, when applied at the vegetative growth stage, injury from DE-564 was:S 13% at any evaluation. Both Plateau and DE-564 injured crimson clover varieties when applied at the mid- to full-bloom growth stage. However, at the May 11 evaluation injury from DE-564 ranged from 7 to 12%, while injury from Plateau ranged from 25 to 27%. Crimson clover seed yield was obtained by harvesting the plots. Plateau applied at the vegetative growth stage severely reduced crimson clover seed yields. In contrast, DE-564 applied at the vegetative growth stage did not significantly reduce crimson clover seed yield. Both Plateau and DE-564 reduced crimson clover seed yield when applied at the mid- and full-bloom growth stage. However, DE-564 reduced crimson clover seed yield approximately 30 to 50% in contrast to the> 95% crimson clover seed yield reduction recorded for Plateau. This experiment showed that crimson clover is more tolerant to DE-564 than to Plateau. Plateau caused severe injury to crimson clover and essentially eliminated seed production. Crimson clover is a reseeding winter annual. DE-564 caused only slight injury to crimson clover when applied at the vegetative growth stage and did not reduce crimson clover seed yield. DE-564, applied at the mid- and full-bloom growth stage injured crimson clover and reduced seed yield more than when applied at the vegetative growth stage. But, relative to 17 Plateau, DE-564 is inherently less injurious to crimson clover. Buckhorn plantain (pLALA) was not effectively controlled with either Plateau or DE-564. Additionally, Plateau was more effective than DE-564 in controlling Italian ryegrass. Data shawn on p. 149. 28. Tolerance of tall fescue (FESAR) to Plateau and DE-564. In north Georgia, tall fescue (FESAR) is an important roadside grass. Similar to common bermudagrass, tall fescue can be overseeded with crimson clover. Research has shown that crimson clover at the vegetative growth stage and common bermudagrass is tolerant to DE-564. This experiment was conducted to determine the tolerance of tall fescue to Plateau (imazapic) and DE-564. Herbicides were applied to established tall fescue at the vegetative growth stage on February 19, 1998. Herbicides were also applied to separate plots on April 13, 1998 when tall fescue was in the seedhead growth stage. Plateau at both rates was more injurious to tall fescue than DE-564. These results were to be expected as Plateau is labeled for the control oftall fescue in roadside bermudagrass. DE-564 at 14.2 glacre was less injurious than at 28.4 glacre to tall fescue when applied at both tall fescue growth stages. Tall fescue density ratings on July 30, 1998 showed that DE-564 at both rates did not reduce tall fescue density. DE-564 was more effective than Plateau in controlling vetch species (VICZZ). Neither herbicide provided acceptable control of buckhorn plantain (pLALA). Both Plateau and DE-564 effectively controlled hop clover (TRFAU). This experiment showed that DE-564 could be used to control weeds in roadside tall fescue. As crimson clover is tolerant to DE-564, this herbicide could also be used on tall fescue roadsides overseeded with crimson clover. Data shown on p. 157. Wildflowers and Annual Flowers - 1995 29. Evaluation of Prodiamine and Metolachlor in established wildflowers. This experiment was conducted to determine the tolerance of established cornflower (Centaurea cyanus), California poppy (Eschscholzia californica), gaillardia, coreopsis spp., and yarrow (Alchemilla millefolium) to prodiamine (Endurance) and metolachlor (pennant) applied in the spring months. All wildflowers exhibited excellent tolerance to prodiamine and metolachlor. Control ofyellow nutsedg.e (CYPES) with metolachlor ranged from 60 to 80% at the August evaluation. Prodtamine did not control yellow nutsedge, but did provide excellent control of southern crabgrass (DIGSP). This experiment showed that these five established wildflower species were tolerant to prodiamine and metolachlor. Data shawn on p. 161. 30. Tolerance of newly-seeded wildflowers to preemergence herbicides. This experiment was conducted to determine ifprodiamine (Endurance) and metolachlor (pennant) could be applied at the time of seeding wildflowers for the control of weeds. Both herbicides initially reduced the establishment of all wildflower species at the May 5, 1995 evaluation. However, by July 6, 1995, actual stand counts of wildflower species per plot showed that cornflower (Centaurea cyanus), California poppy (Eschscholzia californica), annual gailliardia (Gaillardia pulchella), blackeyed susan (Rudbeckia hirta), scarlet flax (Doom rubrum), and scarlet sage (Salvia coccinea) establishment was not affected by prodiamine at rates that ranged from 0.75 to 1.5 lbs. ai/acre, and to metolachlor at rates that ranged from 2.0 to 4.0 lbs.ai./acre. Prodiamine reduced the 18 establishment ofyarrow (Alchemilla millefolium) approximately 50 to 75%. Metolachlor did not reduce yarrow establishment. Both prodiamine and metolachlor effectively controlled southern crabgrass. Prodiamine did not control yellow nutsedge; however yellow nutsedge control with metolachlor ranged from 57 to 62% at the mid-August evaluation. This experiment showed that certain species ofwildflowers were tolerant to prodiamine and metolachlor at the time of seeding. Data shown on p. 163. Wildflowers and Annual Flowers - 1996 31. Efficacy of Endurance and Endurance combinations for weed control during wildflower establishment. This experiment was conducted to determine if tank-mixes of sulfentrazone (sold for use in tobacco as Spartan by FMC), isoxaben (Gallery) and imazapic (Plateau) with prodiamine at 1.5 lbs. ai/acre could be used for weed control during wildflower establishment. In most instances the addition of sulfentrazone, oxyflourfen. isoxaben or imazapic to prodiamine reduced the establishment of California poppy, lanceleaf coreopsis and sulfur cosmos (Cosmos sulphureus). Thus, the use of these herbicides at the time seeding would not be advisable for these species. Data shown on p. 168. 32. Efficacy of Endurance and Pennant for weed control during wildflower establishment. This experiment was conducted to obtain additional data on the efficacy of prodiamine (Endurance) and metolachlor (pennant) applied immediately after seeding wildflowers. Wildflower species that were tolerant to prodiamine at rates that ranged from 0.5 to 0.97Ibs. ai.lacre were baby blue-eyes (Nemophila insignis), California poppy and cornflower. Similar to the 1995 experiment prodiamine severely reduced the establishment of yarrow. Baby's-breath (Gypsophila elegans) and com poppy (Papaver rhoeas) were not tolerant to prodiamine, regardless ofthe rate. Lanceleaf coreopsis stands (Coreopsis lanceolata) were reduced approximately 50% by prodiamine at the rates previously mentioned. California poppy, cornflower and baby's-breath establishment was not reduced by metolachlor at 2.0Ibs. ai/acre. At 4.0 lbs. ai/acre metolachlor reduced the establishment California poppy and baby's-breath. Baby blue-eyes, yarrow, and corn poppy stand establishment was reduced by metolachlor at both 2.0 and"4.0 lbs. ai/acre. No reduction in yarrow establishment was observed in 1995 from metolachlor. Weed population density in this experiment was very low, and no weed control data was recorded. This experiment showed that direct-seeded wildflower species vary in their tolerance to prodiamine and metolachlor. For example, baby blue-eyes, California poppy and cornflower to were tolerant to prodiamine. However, prodiamine severely reduced the establishment ofbaby's-breath, corn poppy, and lanceleaf coreopsis. Data shown on p. 172. Wildflowers and Annual Flowers - 1997 33. Weed control and tolerance of direct-seeded wildflowers to Endurance. This experiment was conducted to determine if Gallery and Plateau could be tank-mixed with Endurance and used at the time of seeding wildflowers. Unlike that observed in 1995 and 1996, prodiamine at rates that ranged from 0.75 to 1.5 lbs. ai/acre did not affect yarrow establishment. Cornflower, 19 California poppy, annual coreopsis and cosmos also showed good to excellent tolerance to prodiamine at the previously listed rates. The addition of Gallery at 0.38 lbs. ai. acre or Plateau at 0.094Ibs. ai/acre (6.0 oz. product/acre) to prodiamine at 0.97Ibs. ai/acre reduced the establishment ofyarrow, cornflower, California poppy, and annual coreopsis. Prodiamine at all rates provided excellent control ofbroadleaf signalgrass, but did not control yellow nutsedge. The tank-mix ofprodiamine + Plateau provided excellent yellow nutsedge control; however, the low tolerance of wildflower species used in this study to Plateau would preclude its use at the time of seeding (establishment). Data shown on p. 175. 34. Tolerance of annual ornamentals to Bas32ran and Mana2e. This experiment was conducted to determine ifBasagran and Manage could be used over-the-top of annual vinca, annual begonia, and annual salvia. Basagran was applied to the same plots on May 12 and May 26, 1997. Manage was applied as a single application on May 12, 1997. Foliage injury was recorded at 14,28 and 42 days after application (DA-A). At 45 DA-A, ornamental above-ground foliage was harvested and dry weights of 6 plants/plot were determined. Annual vinca, annual begonia and annual salvia exhibited only minor injury (:5 21%) to two applications ofBasagran at 2.0 or 4.0 pts./acre. Additionally, Basagran did not reduce the above-ground dry weight of these annual flowers. At 42 DA-A, Manage at both rates caused moderate to severe injury of annual begonia and annual salvia, and dry weights of above-ground foliage was severely reduced at 45 DA-A Annual vinca injury from Manage at 1.33 and 2.67 oz. product/acre was 12.5 and 26.3%, respectively at 42 DA-A Above-ground dry weights of annual vinca were not reduced by Manage. This experiment showed that Basagran could be used over-the-top of annual vinca, annual begonia, and annual salvia for control ofweeds such as yellow nutsedge. In contrast, Manage should only be used over-the-top of annual vinca, as it severely injured annual begonia and annual salvia. Data shown on p. 180. Woody Ornamentals - 1995 35. Winter annual weed control in Georgia nOT ornamentals. This experiment was conducted to determine the efficacy of preemergence herbicides applied in the fall and spring months'for weed control in an established bed ofjuniper. Herbicides evaluated were Surtlan, Gallery, Snapshot 80DF (a mixture of the active ingredients in Surtlan and Gallery), and Snapshot TG (a mixture of the active ingredients in Treflan and Gallery). No herbicide injured established junipers. At the April 4, 1995 evaluation, Gallery, Surtlan + Gallery, and the Snapshot formulations provided good control ofvetch spp. Carolina geranium control was acceptable (>80%) for all herbicides except Surtlan at 2.25 lbs. ai/acre and Gallery at 1.0 lbs. ai/acre. No herbicide effectively controlled goldenrod spp. However, this weed was established at the time of treatment and control would not be expected with these preemergence herbicides. At the August evaluation, all herbicides except Gallery, provided good control of yellow foxtail and crabgrass spp. At this same evaluation only Surtlan at 3.0 lbs. ai/acre applied alone or with Gallery at 1.0 lbs. ai/acre and Snapshot GR at 5.0 lbs. ai/acre provided 2: 90% control of nodding spurge. Data shown onp. 184. 20 Woody Ornamentals - 1996 36. A comparison of Surtlan + Princep ys. Derby for winter weed control in Andorra juniper. This non-replicated experiment was conducted to evaluate the efficacy of a late August applioation ofSurflan + Princep and Derby [a granular formulation of metolachior (4%) and simazine (1%)] for winter annual weed control in established 'Andorra' juniper. Derby and Surtlan + Princep provided 95% control of prickly lettuce at 7 months after treatment (MAT). Overall, Derby provided higher levels of control of common chickweed, vetch. spp and henbit at 7 MAT. Andorra juniper was not injured by these herbicides. Derby is no longer commercially available. However, the active ingredients in Derby, metolachlor and simazine, are available for use on roadside ornamentals under the trade names of Pennant and Princep, respectively. Data shown on p. 188. 37. Evaluation of Derby and OHrr for winter weed control in Andorra juniper. This nonreplicated experiment was conducted to evaluate the efficacy of a late August application of Derby [a granular formulation ofmetolachlor (4%) and simazine (1%)] and amI [a granular formulation of oxyfluorfen (2%) and pendimethalin (1%)] for winter annual weed control in established'Andorra' juniper. At 4.5 months after treatment (February 21, 1996), no injury was observed on Andorra juniper. Populations of common chickweed and henbit in the untreated check area were very low and averaged only a 1.0% ground cover and it was not possible to collect weed control data. The August application of4 inches of hardwood mulch by GDOT personnel provided excellent control of these two weeds in the untreated check area. Data shown on p. 190. 38. Eyaluation of OBIT for winter weed control in PUtzer juniper. This non-replicated experiment was conducted to evaluate the efficacy ofa late August, 1995 application of OHII [a granular formulation of oxyfluorfen (2%) and pendimethalin (1%)] for winter annual weed control in established 'Pfitzer' juniper. At 4.5 months after treatment (MAT), no injury was observed on Pfitzer juniper. No weeds were present in the area treated with 000 or the untreated check area. At 7.0 MAT (April 2, 1996), 000 provided 95% control of hairy bittercress, Carolina geranium and Vetch spp. Weed populations at the site were very low due to the September application of hardwood mulch by GDOT personnel. Data shown onp. 191. 39. Efficacy of August applications of preemergence herbicides in woody ornamentals. This experiment was conducted to evaluate the efficacy of a late August, 1995 application of Surflan, Gallery, Princep, and tank-mixes ofSurflan + Gallery or Surflan + Princep for winter annual weed control in established 'Andorra' juniper. No herbicide injured Andorra juniper. Weed populations were not sufficiently high enough on this site to rate until April 2, 1996. All herbicides provided excellent (>90%) control of prickly lettuce, common chickweed, and vetch spp. on April 2, 1996. Data shown on p. 192. 40. Winter weed in Georgia DOT ornamentals - second year. This experiment was a continuation of Experiment 30 and was conducted to determine the efficacy of preemergence 21 herbicides applied in the fall and spring months for weed control in an established bed ofjuniper. Herbicides evaluated were Surflan, Gallery, Snapshot 80DF (a mixture of the active ingredients in Surflan and Gallery), and Snapshot TG (a mixture of the active ingredients in Tretlan and Gallery). These herbicides were applied to the same plots on September 13, 1994, February 24, 1995 and September 20, 1995. Only data from the April 2, 1996 evaluation will be discussed. No herbicide injured established junipers on April 2, 1996 (data not shown). Thus, this experiment showed that junipers were tolerant to multiple applications of preemergence herbicides over a 12 month period of time. All herbicides provided 2: 80% control of vetch spp. on April 2, except Gallery at 1.0 lbs. ai/acre, Surflan + Gallery at both rates, and Snapshot DF at 3.0 lbs. ai/acre. Carolina geranium control was >80% for all herbicides except Gallery at 1.0 lbs. ai/acre, and Surflan + Gallery at 3.0 and 1.0 lbs. ai/acre, respectively. Data shown on p. 194. Woody Ornamentals - 1997 41. Effect of fall preemergence herbicides on yellow n"tsedge control in ornamentals. This experiment was conducted iffall applications ofsulfentrazone (sold for use in tobacco as Spartan by FMC) and metolachlor (pennant) would control yellow nutsedge the following spring. 'Clarissa' holly was tolerant to both herbicides at all evaluations. However, yellow nutsedge was not effectively controlled by fall applications of either sulfentrazone or metolachlor. Data shown onp.197. 42. Efficacy of fall + winter preemergence herbicides for winter weed control in roadside ornamentals. This experiment was conducted to determine if a mid-winter (January) application of preemergence herbicides was necessary to control winter annual weeds following a fall application of the same herbicides. Surflan, Gallery, Princep, Surflan + Gallery and Surflan + Princep were applied as a single application in in September 1996, or as repeat application to the same plots in September 1996 and January 1997. 'Clarissa' holly was tolerant to all herbicides. At 225 days after application (DA-A), Surflan at 4.0 lbs. ai/acre applied in September and January provided better annual sowthistle (SONOL) control than when applied only in September. However, September applications of all other herbicides were as effective as September + January appli~tions in controlling annual sowthistle. There was no advantage (in terms of increased control) in the control of prickly lettuce (LACSE) from reapplying the herbicides in January compared to a single September application. Yellow nutsedge (CYPES) was not controlled by any herbicide. This experiment showed that September + January applications of the same preemergence herbicide generally did not increase control of weeds obtained with only a September application of preemergence herbicides. Data shown on p. 200. 43. Fall preemergence herbicide combinations for roadside ornamentals. The objective of this experiment was to determine the efficacy of fall applied preemergence herbicides for winter annual weed control in 'Clarissa' hollies. No herbicide injured Clarissa holly at any evaluation. All herbicides provided excellent control of Carolina geranium (GERCA) and prickly lettuce (LACSE). Vetch. spp. control was variable and there was essentially no statistically significant differences in control at either 167 or 225 days after application (DA-A). No herbicide provided control of yellow nutsedge (CYPES) at 225 DA-A. Data shown on p. 203. 22 RECOMMENDATIONS TO GEORGIA DOT (Not listed in priority order) 1. Imazapic (Imazapic Applicators Concentrate, Plateau) was found to be a suitable alternative herbicide to MSMA. Depending upon the rate, imazapic may be used to control and/or suppress bahiagrass in common bermudagrass roadsides. Additionally, imazapic, at low rates (2.0 to 3.0 fl. oz./acre), is highly effective for regulating the growth (foliage and seedhead development) of bahiagrass. With the introduction of imazapic, GDOT should consider the use of bahiagrass as the preferred roadside grass on dry, sandy sites. 2. Numerous herbicide mixtures for winter weed control were compared to the current GDOT standard of Roundup Pro + Oust + Telar. No herbicide mixture provided significant weed control advantages over the current GDOT standards. GDOT should continue to use present standard weed control mixture; however, the inclusion oftriclopyr (Garlon 3A), clopyralid (Transline) or dicamba (Vanquish) with Roundup Pro alone or Roundup Pro + Oust should be utilized as components of a long-term herbicide rotation management strategy. For example, Roundup Pro + Oust + Transline (or Vanquish or GarIon 3A) should be used on a 1 in 3 or 4 year herbicide rotation strategy. 3. Several effective herbicide combinations can be used for the control of hairy fleabane. Late March applications ofRoundup Pro + Oust, Roundup Pro + Oust + Telar, Transline alone or in combination with Roundup Pro, Oust, Telar, Roundup Pro + Oust or Roundup Pro + Telar effectively control hairy fleabane with no effect on common bermudagrass spring transition. Late May herbicide applications to hairy fleabane were not as effective as March applications. Herbicides applied in late May that provided 80% hairy fleabane control 75 days after applications were Garlon 3A, Transline, MSMA + Garlon or Transline, and Roundup Pro + Garlon or Transline. The current GDOT summer-herbicide, MSMA, does not control hairy fleabane. 4. DE-564, a low rate sulfonanilide postemergence herbicide being developed for roadside grass use, ~as identified as a viable herbicide option for weed control in common bermudagrass, tall fescue, and crimson clover. Research showed that 3 different varieties of crimson clover treated at the vegetative growth stage (mid-March) had outstanding tolerance to DE-564. Imazapic, while labeled for this use, was highly injurious to crimson clover and essentially prevented crimson clover seed production. This research clearly showed that a herbicide program could be developed with DE-564 that would enable the reintroduction of crimson clover on GDOT roadsides. However, this herbicide is not currently labeled as of October, 1998 for this use. However, Dow AgroSciences is highly interested in pursuing a federal registration for this use. Additional research is need to identify tank-mix partners for DE-564 that would control Italian ryegrass. 5. GDOT should consider the use of preemergence herbicides such as Snapshot TG, OHIIor Rout on woody ornamentals, particularly in the first five years after planting. The previously mentioned herbicides are granular formulations which facilitates application by GDOT personnel. Four experiments were conducted to evaluate the use of preemergence herbicide applied at the 23 time of seeding wildflowers. Wildflower species tolerant to Endurance applied immediately after seeding included cornflower, California poppy, annual gailliardia, blackeyed susan, scarlet flax, scarlet sage, baby blue-eyes, annual coreopsis, and cosmos. Non-tolerant species to Endurance were yarrow, baby's breath, corn poppy, and lanceleafcoreopsis. The use ofa preemergence herbicide applied at the time of seeding is desirable. However, the use of a preemergence herbicide should be limited only to seed mixes that contain tolerant wildflower species. Additional research on wildflower species tolerance to preemergence herbicides is needed. 6. A selective glyphosate applicator, Weed-Bug, was identified that could be used for the control of hemp dogbane and other tall growing weeds such as vaseygrass and Florida paspalum. However, wiping height must be carefully monitored or severe injury to roadside grasses will occur. 7. Although it was not an objective of this study, GnOT should equip all spray trucks with herbicide injection systems. The use of herbicide injection systems would enable the operator to spot spray infestations of problem weeds such as hemp dogbane with an effective herbicide. Otherwise, it will be necessary for GnOT personnel to hand spray infestations of weeds that are not controlled by herbicide mixtures used on a wide-scale basis. Other advantages of herbicide injection spray trucks include: a) reduced exposure by operators during mixing and loading, b) precise herbicide applications, and c) enable the operator to stop spraying one or more herbicides that may be injurious to adjacent non-GnOT vegetation but still make an application of a noninjurious herbicide. Herbicide injection systems tied to an on-vehicle computer will also enable GnOT to automatically record herbicide application information. 24 DATA 25 Site Description . STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R Murphy Extension Weed Scientist. UGA Tift County, GA CROP DESCRIPTION CROPS BAYER CODE, COMMONNAME I PASNO, Bahiagrass, Pensacola PLOT WIDTH x LENGTH 12 ft x 50 ft STUDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 APPUCATION DATE TIME OF DAY TIMING AIR TEMP.,F WIND VELOCITY, MPH SOIL TEMP.,F SOIL-MOISTURE SOIL CONDITION LEAF MOISTURE EQUIPMENT OPERATING PSI NOZZLE INFORMATION SPRAY VOLUME, GPA PROPELLANT MIX SIZE, GAL. APPUCATION INFORMATION A 4-25-95 10:00 - 12:00 am Post 66 3NW 70 Dry NA. Dry Tractor 30 8002, 8 Nozzles 20 CO2 1.25 26 CROP STAGE AT EACH APPUCATION APPUCATION A CROP1; PASNO, Bahiagrass Green up 100%, No seedheads, 5 inch Height TREATMENT APPUCATION COMMENTS % Dc:crease Color: 0= No effect, 100 = Brown grass % Decrease Stand: o= No effect, 100 = Complete elimination ofBahiagrass (PASNO) % Height Reduction: 0 = No effect, 100 = Total vegetative growth reduction Weed population was very light and erratic. No weed control data was recorded. Cadre will be marketed under the trade name ofPlateau for use on grass roadsides. 27 FILE NAME:CADRE.EXP FINAL U N I V E R SIT Y oF GEOaGIA EVALUATION OF CADRE FOR BAHIAGRASS GROW'l'H REGULATION EXPT. LOCATION: TIFT COUNTY I GA USA RESEARCH BY: T. MURPHY INITIATED: 04/25/95 COMPLETED:08/17/9~ Me __ _===-==============: ---=-== .. =a::c=a.....~==== r-======--====z:::~===z===== PESTICiDe APPLI-IXCOlOR IX5TAND IXCOlOR IX5EEDIID IX HEIGT IX5TAND IXCOlOR IXSEEDHD IXHEIGHT IX5TAND I TRT. -------------~------ CATIONloECREASIOECREASIOECREASlsupPRESIOECRES IOECREAS10ECREASI SUPPRES10ECREASIOECREASI NO. NAME FORMU: LBai/A TYPE 15/09/95 15/09/95 15/24195 15/24/95 15/24/95 15/24/95 16/22/9516/22/9516/22/9516/22/951 aza. . . . . . . . . . a=. .~z=.= ====za===================================.====~================================================== 01 CADRE SC 2.0 0.032 POST NON-SURF Xa 1.0 0.25X POST 7 o 13 100 37 o 12 87 47 10 02 CADRE SC 2.0 0.047 POST NON-SURF XA 1.0 0.251 POST 5 o 18 100 45 3 17 98 52 12 03 CADRE SC 2.0 0.063 POST 13 o 30 100 50 2 32 100 70 23 NON-SURF XA 1.0 0.251 POST 04 CADRE SC 2.0 0.094 POST 18 o 40 100 58 10 38 100 73 37 NON-SURF XA 1.0 0.251 POST 05 CADRE SC 2.0 0.125 POST 23 o 45 100 55 12 68 100 n 55 NON-SURF XA 1.0 0.251 POST 06 CADRE SC 2.0 0.047 POST 38 o 67 100 62 15 50 100 65 37 ROUNDUP SC 4.0 0.375 POST NON-SURF XA 1.0 0.251 POST 07 CADRE SC 2.0 0.047 POST 18 o 37 100 47 10 27 100 58 17 PENDIMET EC 3.3 2.0 POST NON-SURF XA 1.0 0.251 POST 08 CADRE SC 2.0 0.047 POST 25 o 33 100 47 5 18 98 47 10 VANQUISH SC 4.0 0.25 POST NON-SURF XA 1.0 0.251 POST 09 CADRE SC 2:0 0.047 POST 47 o 58 100 62 13 25 97 50 17 ROUNDUP SC 4.0 0.15 POST 2,4-0 AM SC 3.8 0.25 POST NON-SURF XA 1.0 0.251 POST 10 CADRE SC 2.0 0.047 POST 40 o 40 100 57 10 33 98 70 25 ARESENAL SC 2.0 0.004 POST NON-SURF XA 1.0 0.251 POST 11 CADRE SC 2.0 0.047 POST 40 o 45 100 57 20 33 100 65 25 ARSENAL SC 2.0 0.008 POST NON-SURF XA 1.0 0.251 POST 12 OUST OG 751 0.023 POST 32 o 45 100 50 23 8 93 52 7 NON-SURF XA 1.0 0.251 POST FILE NAME:CADRE.EXP FINAL UNIVERSITY o F GEORGIA EVALUATION OP CADRE FOR BABIAGRASS GROW'l'H REGULATION ====~aa.--===========.z===c=c:=--=================----=--==========za=aa============================================================ PESTICIDE APPLI-IXCOlOR IXSTAND IXCOLOR IXSEEDIIDII HEIGTIXSTANO IXCOlOR IXSEEDHDIXIlEIGHTIXSTAND 1 TRT. -------------------- CATIONIDECREASIDECREASIDECREASlsupPRESIDECRES IDECREASIDECREASlsupPRESIDECREASIDECREASI NO. NAME FORMU... LBaflA TYPEls/09/95 IS/09195 IS/24/95 IS/24195 IS/24/95 IS/24/95 16/2219516/22/95 16/22/9516/22/951 =======-==============~========================================--==========--===--==================================================== 13 UNTRT CK oooooooooo LSD(O.OS) = 20 NA 14 NA 11 8 24 STANDARD DEVIATION = 12 NA 9 NA 6 5 14 COEFF. OF VARIABILITY = 51 NA 24 NA 13 52 51 7 14 17 4 9 10 5 15 48 FILE NAME:CADRE.EXP FINAL UNIVERSITY o P GEORGIA EVALUATION OP CADRB POR BAJlIAGRASS GR01fTH RBGULATION EXPT. LOCATION: TIFT COUNTY, GA USA RESEARCH BY.:T. MURPHY INITIATED: 04/25/95 COMPLETED: 08/17/95 =======----============================================--a.==--===-~_================================================= PESTICIOE APPLI-IXSEEDHD IXHEIGHT IISTAMO IXSEEOHD IISTAND I TRT. -------------------- CATION ISUPPRES 10ECREAS 10ECREAS1SUPPRES 10ECREAS I NO. NAME FOR..... lBailA TYPE 17118/95 17118/95 17/18/95 18/17/95 18/17/95/ azaa==.....c===================================================================================================================:: 01 CADRE SC 2.0 0.032 POST 83 20 o 27 o NON-SURF Xa 1.0 0.25% POST 02 CADRE SC 2.0 0.047 POST 87 22 3 38 o NON-SURF XA 1.0 0.25% POST 03 CADRE SC 2.0 0.063 POST NON-SURF XA 1.0 0.25% POST 98 33 20 53 10 04 CADRE SC 2.0 0.094 POST 100 37 20 68 18 NON-SURF XA 1.0 0.25% POST 05 CADRE SC 2.0 0.125 POST 100 57 63 87 42 NON-SURF XA 1.0 0.25% POST 06 CADRE SC 2.0 0.047 POST RA/XERICA I%PULA /XSOLCA / TRT. -------------------- CATIONIINJURY IINJURY 1CONTROL 1CONTROL 1CONTROL 1 NO. NAME FORMU. LBai/A TYPE 16/26/95 16/26/95 16/26195/6/26/9516/26/951 ====-=====-===================================================================================================================== 01 ROUNDUP SC 4.0 0.25 POT OUST OF 75% 0.012 POT TELAR DG 75% 0.012 POT NON-SURF XA 1.0 0.25% POT o 3 45 NA NA 02 ROONDUP SC 4.0 0.25 POT o TORDON SC 2.0 0.125 POT NON-SURF XA 1.0 0.25% POT o NA 03 It 8..7..1.. 0.0...1.._ _I0_.7-,-1_ _7_.61_ _0_.0..&..1_ _9_.6..&..1_ _17_.91_ _23_.1' Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) (96PLATl) University of GA Coop Ext Service AOV Means Table Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval PASNO PASNO PASNO PASNO PASNO PASNO PASNO PASNO SEEDHD HEIGlIT COLOR STAND SEEDHD HEIGlIT COLOR STAND SUPPRESS DECREASE DECREASE DECREASE SUPPRESS DECREASE DECREASE DECREASE 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 06-28-96 06-28-96 07-29-96 07-29-96 07-29-96 07-29-96 08-28-96 08-28-96 53 DA-A 53DA-A 84DA-A 84DA-A 84DA-A 84DA-A 114DA-A 114DA-A Trt Treatment Fonn Fm Rate Grow No. Name Amt Ds Rate Unit Stg 1 UNTREATED CHI<. Ob Oc Ob oc Ob Od Oc Od 2 PLATEAU 2.0 AS 0.048 LB AlA POST 1 100 a 37 ab Ob NON-SURFACTANT 0.25 % VN POST 1 7c 92a 18 be Oc 23 c 3 PLATEAU 2.0 AS 0.063 LB AlA POST 1 100 a. 48 ab Ob 25 b 98 a 32 ab Oc 32 c NON-SURFACTANT 0.25 % VN POST 1 4 PLATEAU 2.0 AS 0.048 LB AlA POST 1 100 a 33 b Ob 5c 89 a lOed 42 b 50 b NON-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.048 LB AlA POST 2 NON-SURFACTANT 0.25 % VN POST 2 5 PLATEAU 2.0 AS 0.063 LB AlA POST 1 100 a 47 ab 3b 33 ab 97 a 33 a 50 b 63 a NON-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.048 LB AlA POST 2 NON-SURFACTANT 0.25 % VN POST 2 6 PLATEAU 2.0 AS 0.063 LB AlA POST 1 100 a 53 a lOa 47 a 99 a 32 ab 70 a 70 a NON-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.063 LB AlA POST 2 NON-SURFACTANT 0.25 % VN POST 2 I_LS_D~(P=_-._05..;..) ...1.-_ _0_0..1..._ _1_6..2..1.. 4....131_ _1...;,8.3..L1_ _ 9.21_ _1_3...&.41_ _1_9.2...1.._ _12---'.61 MRn Means followed by same letter do not significantly differ (p=.05, Duncan's New :/ ".\ j -, (96PLATl) University of GA Coop Ext Service Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval PASNO PASNO SEEDHD HEIGHT SUPPRESS DECREASE 0-100 0-100 08-28-96 08-28-96 114DA-A 114DA-A Trt Treatment Form Fm Rate Grow No. Name Amt Ds Rate Unit Stg 1 UNTREATED CHK oc Oe 2 PLATEAU 2.0 AS 0.048 LB AlA POST 1 77 b NON-SURFACTANT 0.25 % VN POST 1 37 cd 3 PLATEAU 2.0 AS 0.063 LB AlA POST 1 80 b 30 d NON-SURFACTANT 0.25 % VN POST 1 4 PLATEAU NON-SURFACTANT PLATEAU NON-SURFACTANT 2.0 AS 0.048 LB AlA POST 1 100 a 0.25 % VN POST 1 2.0 AS 0.048 LB AlA POST 2 0.25 % VN POST 2 47 be 5 PLATEAU 2.0 AS 0.063 LB AlA POST 1 100 a 53 b NON-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.048 LB AlA POST 2 NON-SURFACTANT 0.25 % VN POST 2 6 PLATEAU 2.0 AS 0.063 LB AlA POST 1 100 a 70 a NON-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.063 LB AlA POST 2 NON-SURFACTANT 0.25 % VN POST 2 I.L..S. _D...{.P_=_.0.5...). 14_.31_ _1_3...6..11. Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) AOV Means Table r,- Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R Murphy Extension Weed Scientist, UGA Griffin, GA CROPS 1 2 PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS FIELD PREPARATION INITIATION COMMENTS SOn.. INFORMATION CROP AND WEED DESCRIPTION BAYER CODE, Common Name CYNDA, Bermudagrass, Common Roadside, Established PASNO. Bahaigrass, Pensacola, Established 6.5 ftx60ft Randomized Complete Block (RCBD) 3 Plot area mowed 3 weeks prior to treatment Sprayed on center ofstakes. Weed population very scattered. Sandy Loam; 5.0 % Organic Matter, 62 % Sand; 20 % Silt; 18 % Clay, 6.3 pH APPLICATION DATE -- := TIME OF DAY METHOD TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH SOn.. TEMP. F SOn.. MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI APPLICATION INFORMATION A B 6-18-96 8-19-96 8am lOam Broadcast Broadcast Post Post Ground Ground 83 79 3 0 80 79 DIY DIY 0 0 Backpack 20 7R APPLICATION NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPEllANf APPLICATION INFORMATION A IB Flat fan. 8004, 19 inch Spacing 6.5 foot Length, 19 inch Height 3 Water 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A B CROP 1; CYNDA, BerltUldagrass Seedhead 50 %,6 inch Height Seedhead, 9 inch Height CROP 2; PASNO, Bahiagrass Seedhead, 9 inch Height Seedhead, 6 inch Height 7-1-96 8-19-96 9-20-96 TRIAL COMMENTS Plants under severe drought stress. Plots #304 and 305 not enough Bennudagrass (CYNDA) present to rate, only Bahiagrass (PASNO). At 8 weeks after treatment (WAT) weeds not uniform enough to rate. However, Plateau not suppressing Dallisgrass (pASDI) seedheads or controlling Knotroot Foxtail (SETGE). Plots # 304 and 305 not enough Bennudagrass (CYNDA) present to rate. Plateau released Southern Crabgrass (DIGSP) in plots where Bahiagrass (PASNO) damage was severe. Plots # 304 and 305 not enough Bennudagrass (CYNDA) present to rate. 7Q (96PLAT2) University of GA Coop Ext SeIVice PLATEAU HERBICIDE FOR COMMON BERMUDAGRASS GROWTH SUPPRESSION IN UNIMPROVED TURF AND ROADSIDES USING SEQUENTIAL APPLICATIONS. Trial ID: 96PLAT2 Investigator: TIM MURPHY AND TIM ADCOCK Location: GRIFFIN, GA Study Dir.: Tim R Murphy AOV Means Table Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval InteIVal CYNDA CYNDA CYNDA CYNDA CYNDA CYNDA PASNO FOLIAG PLANT .FOLIAG PLANT SEEDHD PLANT FOLIAG COLOR STAND COLOR STAND HEIGHT COLOR DECREASE DECREASE DECREASE DECREASE SUPPRESS DECREASE DECREASE 07-01-96 07-01-96 07-22-96 07-22-96 07-22-96 07-22-96 07-22-96 13 DA-A 13 DA-A 34DA-A 34DA-A 34DA-A 34DA-A 34DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 1 UNTREATED CHECK Oc Oa Oc Oa Oc Ob Oc 2 PLATEAU 2.0 AS 0.094 LB AlA POST 1 13 b Oa NONIONIC-SURFACTANT 0.25 % VN POST 1 lObe 2a 73 ab 15 a 32 a 3 PLATEAU 2.0 AS 0.125 LB AlA POST 1 25 a Oa NONIONIC-SURFACTANT 0.25 % VN POST 1 18 ab 2a 88 a 18 a 32 a ac: 4 PLATEAU 2.0 AS 0.063 LB AlA POST 1 6 c Oa NONIONIC-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.094 LB AlA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 7be Oa 66 b 2b 18 b 5 PLATEAU 2.0 AS 0.094 LB AlA POST 1 15 b Oa NONIONIC-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.094 LB AlA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 8be Oa 83 ab 13a 30 ab 6 PLATEAU 2.0 AS 0.125 LB AlA POST 1 19 ab Oa NONIONIC-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.063 LB AlA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 27 a 2a 91 a 22 a 30 ab I.L..S.._D...;.(P_=_.05...;..,) ---1._ _..;.6.5.&.1_ _...;....01_ _12_.21 h 4.2...1.._ _19..7...1.._ _1_O.6..L1_ _11_.21 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) ,./ ./ __ J (96PLATI) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eva! Interval EPHNU PASNO PASNO PASNO CYNDA CYNDA CYNDA CYNDA PLANT SEEDHD PLANT FOLIAG STAND HEIGHT COLOR PLANT SEEDHD PLANT STAND HEIGHT CONTROL DECREASE SUPPRESS DECREASE DECREASE DECREASE SUPPRESS DECRESE 07-22-96 07-22-96 07-22-96 08-19-96 08-19-96 08-19-96 08-19-96 08-19-96 34DA-A 34DA-A 34DA-A 62DA-A 62DA-A 62DA-A 62DA-A 62DA-A Trt Treatment No. Name 1.UNTREATED CHECK Form Fm Rate Amt Ds Rate Unit Grow Stg Oa Ob Ob Ob Oa Ob Oc oc 2 PLATEAU 2.0 AS 0.094 LB AlA POST 1 Oa NONIONIC-SURFACTANT 0.25 % VN POST 1 97 a 25 a Ob Oa 25 ab 13 be 90 a 3 PLATEAU NONIONIC-SURFACTANT 4 PLATEAU NONIONIC-SURFACTANT PLATEAU NONIONIC-SURFACTANT 2.0 AS 0.125 LB AlA POST 1 Oa 0.25 % VN POST 1 2.0 AS 0.063 LB AlA POST 1 Oa 0.25 % VN POST 1 2.0 AS 0.094 LB AlA POST 2 0.25 % VN POST 2 91 a 23 a Ob Oa 40 a 28 a 88 a 1/ 92 a 22 a Ob Oa 9 ab 2be 60 b .a.. 5 PLATEAU NONIONIC-SURFACTANT PLATEAU NONIONIC-SURFACTANT 2.0 AS 0.094 LB AlA POST 1 Oa 0.25 % VN POST 1 2.0 AS 0.094 LB AlA POST 2 0.25 % VN POST 2 97 a 28 a Ob Oa 17 ab 10 be 88 a 6 PLATEAU 2.0 AS 0.125 LB AlA POST 1 Oa 100 a 25 a 5a Oa 27 ab 17 ab 88 a NONIONIC-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.063 LB AlA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 I_Ls_D...;. PLATEAU 2.0 AS 0.094 LB NA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 5 PLATEAU 2.0 AS 0.094 LB NA POST 1 47 a 35 a 100 a 35 c 22 a Oa 30 a NONIONIC-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.094 LB NA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 6 PLATEAU NONIONIC-SURFACTANT PLATEAU NONIONIC-SURFACTANT I. . .LS_D..;.,(P=_-._05.:..,.> 2.0 AS 0.125 LB NA POST 1 47 a 37 a 100 a 52 a 20 a Oa 31 a 0.25 % VN POST 1 2.0 AS 0.063 LB NA POST 2 0.25 % VN POST 2 ..L-_..;..;.10.;.;;J,11_--:.20~.8~1 _ __=.:.:2.l:.LI_ ___.:8;,:,:,.61_1_---:;.,:5.;.&.31_---.,;0:.:.:..01_ _8.91 Means followed by same letter do not significantly differ (p=.05, Duncanls New MRT) (96PLAT2) University of GA Coop Ext SeIVice Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval IntelVal EPHNU CYNDA PASNO PASNO PASNO PASNO PLANT FOLIAG PLANT SEEDHD PLANT HEIGHT CONTROL COLOR STAND HEIGHT DESREASE DECREASE DECREASE SUPPRESS DECREASE 09-20-96 09-20-96 09-20-96 09-20-96 09-20-96 09-20-96 94DA-A 94DA-A 94DA-A 94DA-A 94DA-A 94DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 1 UNTREATED CHECK Ob Ob Ob Ob Oc Od 2 PLATEAU 2.0 AS 0.094 LB AlA POST 1 Ob 100 a Ob 10 b 98 b 23 c NONIONIC-SURFACTANT 0.25 % VN POST 1 " 3 PLATEAU 2.0 AS 0.125 LB AlA POST 1 3b 100 a 3b 37 a 100 a 33 be NONIONIC-SURFACTANT 0.25 % VN POST 1 4 PLATEAU 2.0 AS 0.063 LB AlA POST 1 20 a 100 a 43 a 33 a 100 a 43 ab NONIONIC-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.094 LB AlA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 5 PLATEAU 2.0 AS 0.094 LB AlA POST 1 18 a 100 a 48 a 48 a 100 a 48 a NONIONIC-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.094 LB AlA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 6 PLATEAU 2.0 AS 0.125 LB AlA POST 1 25 a 100 a 53 a 47 a 100 a 45 a NONIONIC-SURFACTANT 0.25 % VN POST 1 PLATEAU 2.0 AS 0.063 LB AlA POST 2 NONIONIC-SURFACTANT 0.25 % VN POST 2 ILSD (p=.05) 7.31 0.01 10.81 MRn Means followed by same letter do not significantly differ (p=.05. Duncan's New AOV Means Table M ex) :: .::.m:::::/:ii::::Hltti_i11i:41i~~:.rrEism.). E:fjCIDQMB~ms.~.. Nsi.. :ff .:;::; ;:::::: nrmm ", :: ".;.:.;.;.:.;.:.:.;.;.;.;.:.;.;.:.;.;.:.:.:-:.; .;...;;.;:;;;;z.; ::::;:;:<::::;::::::::::;:::::;:::::;: . .." l....:. ...l.i.:.l.ll. .:.::::. . Site Description GENERAL TRIAL INFORMATION STUDY DmECTOR Dr. Tim R Murphy TITLE Extension Weed Scientist, UGA TRIAL LOCATION Hwy.41/l9 South from ClaytonIHenry Co. line on West side to median 19 South to Zebulon intersection with Hwy. 41. EVALUATION METHOD Percent Bermudagrass green-up and Tall Fescue injury, and presence (yes) or absence (no) ofthree weed species were assessed at five randomly selected areas in test site. CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME I SONOL, Sow Thistle 2 PLALA, Buckhorn Plantain 3 LACSE, Prickly Lettuce CROPS BAYER CODE, COMMONNAME 1 CYNDA, Bermudagrass, Common. Established, 100 % Dormant 2 FESAR. Tall Fescue PLOT WIDTH x LENGTH Approximately 100 ft Length x 10 to 20 ft. Width Evaluated REPLICATIONS Five randomly selected plot sites within each treatment. APPLICATION DATE AIR TEMP.,F SOIL TEMP.,F SOIL MOISTURE EQUIPMENT CLOUD COVER SPRAY VOLUME, GPA .... ~ APPLICATION INFORMATION A 3-13-97 65 47 Good D.O.T. truck equipped with Boombuster nozzles. Sunny ** 30 Treatments 2 through 7 were supposed to be applied at 40 GPA (originally based on fact that D.O.T. truck was calibrated at 40 GPA). After test was completed, it was learned that it was calibrated at 30 GPA; Thus reducing effective rate by 25%. Rates shown below are based on 30 GPA. CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; CYNDA, Bermudagrass 100% Dormant, No green-up. WEED STAGE AT EACH APPLICATION APPLICATION A WEED 2; PLALA, Buckhorn Plantain to 12 in. Height PRODUCT PER ACRE 1. Roundup Pro + Oust + Telar 2. Roundup Pro + TordonK+ NIS 3. Roundup Pro + Telar+ NIS 4. Roundup Pro + Telar+ Garlon4 + NIS 5. Roundup Pro + Telar+ Vanquish + NIS 6. Plateau + NIS 7. Plateau + NlS. HERBICIDE TREATMENTS RATE LOCATION 8.00z Hwy.41/19 South from C1aytonlHeruy Co. line on West side to 0.25 oz. median 19 South to Zebulon intersection with Hwy. 41. 0.25 oz. 6.0 oz. East side ofmedian from 41 to 19 intersection 2.7 mi. North 6.0 oz. 0.25% 6.0 oz. East side of median 2.1 mi. North. Ends at Georgia Station. 0.1875 oz. 0.25% 6.0 oz. East side ofmedian 2.5 mi. North of Vineyard Rd. Ends 0.4 mi. 0.1875 oz. South of School Rd. in Swmyside. 12 oz. 0.25% 6.0 oz. East side of median 0.4 mi. South of School Rd. in Swmyside, 0.1875 oz. for 2.2 mi., ends at Flea market 12 oz. 0.25% 9.0 oz. East side of median beginning 100 ft. North of crossover at Flea 0.25% market for 2.3 mi., ending at "DO NOT ENTER" sign North of racetrack. 4.5 oz. East side ofmedian beginning 100 ft. North of"DO NOT ENTER" 0.25% sign North of racetrack, ending 475 ft. S. of Clayton Co. line. COMPARISON: DOT STANDARD (1) vs. ROUNDUP PRO + TORDON K + NIS (2) Crop! Weed 0/0 Bennuda % Tall Fescue % Bennuda % Tall Fescue Sow.Thlstie Prickly Lettuce Buckhorn Plantain Rating Greenup Injury Greenup Injury Presence Presence Presence DAT 42 42 42 42 78 78 78 78 78 78 78 78 78 78 Stop 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 40 SO 75 50 90 90 0 0 yes no yes no yes no 2 10 40 80 50 90 90 0 0 yes no no no yes yes 3 15 45 70 65 90 90 0 0 yes no yes no yes yes 4 40 55 70 60 90 90 0 0 yes no yes no yes yes 5 30 55 80 50 90 90 0 0 yes no yes no yes yes COMPARISON: DOT STANDARD (1) vs. ROUNDUP PRO + TELAR + TORDON + NIS (3) Crop! Weed % Bennuda % Tall Fescue % Bennuda % Tall Fescue SOW Thistle Prickly Lettuce Buckhorn Plantain Ratinl DAT Greenup 42 42 Injury 42 42 Greenup 78 78 Injury 78 78 Presence 78 78 Presence 78 78 Presence 78 78 Stop 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 20 55 80 45 90 90 0 0 yes no yes no yes yes 2 40 65 80 45 90 90 0 0 yes no no no yes no 3 60 60 80 45 90 90 0 0 yes no yes no no no 4 25 45 70 40 90 90 0 0 yes no yes no yes yes 5 30 45 75 40 90 90 0 0 no no no no no yes COMPARISON: DOT STANDARD (1) vs. ROUNDUP PRO + TELAR + GARLON + NIS (4) Crop! Weed % Bennuda % Tall Fescue % Bennuda Ofo Tall Fescue SOW Thistle Prickly Lettuce Buckhorn Plantain Rating Greenup Injury Greenup Injury Presence Presence Presence DAT 42 42 42 42 78 78 78 78 78 78 78 78 78 78 Stop 1 4 1 4 1 4 1 4 1 4 1 4 1 4 1 25 35 70 40 90 90 0 0 no no no no yes yes 2 20 40 70 30 90 90 0 0 no no no no no no 3 45 55 80 20 90 90 0 0 no no no no yes no 4 ..... 'I:, 45 45 70 30 90 90 0 0 no no yes no yes no 5 35 50 70 20 90 90 0 0 no no no no yes yes Rh COMPARISON: DOT STANDARD (1) vs. ROUNDVP PRO + TELAR + VANQUISH + NIS (5) Crop! Weed % Bennuda Rating Greenup DAT 41 41 Stop 1 5 1 30 40 2 30 55 3 30 50 4 30 45 5 35 50 lifo TaU Fescue Injury 41 41 1 5 70 25 70 20 70 20 70 20 70 20 0/0 Bennuda Greenup 78 78 1 5 90 90 90 90 90 90 90 90 90 90 % TaU Fescue Sow Thistle Injury 78 78 1 5 0 0 0 0 0 0 0 0 0 0 Presence 78 78 1 5 no no no no no no no no no no Prickly Lettuce Presence 78 78 1 5 no no no no no no no no no no Buckhom Plantain Presence 78 78 1 5 yes yes yes yes yes yes yes yes yes yes COMPARISON: DOT STANDARD (1) vs. PLATEAU 9.0 oz. + NIS (6) Crop! Weed % Bennuda % TaU Fescue % Bennuda % TaU Fescue Sow Thistle Prickly Lettuce Buckhom Plantain Ratlng Green up DAT 41 42 Stop 1 6 1 35 10 2 35 10 3 30 10 4 35 10 5 35 10 Injury 42 42 1 6 70 80 80 70 70 80 70 80 70 80 Greenup 78 78 1 6 90 60 90 50 90 50 90 50 90 60 Injury 78 78 1 6 0 100 0 100 0- 0 100 0 100 Presence 78 78 1 6 no no no no no no no no no no Presence 78 78 1 6 no yes no yes no no no no no no Presence 78 78 1 6 yes yes yes yes yes no yes no yes yes COMPARISON: DOT STANDARD (1) vs. PLATEAU 4.5 oz. + NIS (7) Crop! Weed 0/0 Bennuda % TaU Fescue 0/0 Bennuda % TaU Fescue Sow Thistle Prickly Lettuce Buckhom Plantain Ratlng Green up DAT 42 41 Stop 1 6 1 35 10 2 35 10 3 30 10 4 35 10 5 35 10 Injury 42 41 1 6 70 80 80 70 70 80 70 80 70 80 Greenup 78 78 1 6 90 60 90 50 90 50 90 50 90 60 Injury 78 78 1 6 0 100 0 100 0- 0 100 0 100 Presence 78 78 1 6 no no no no no no no no no no Presence 78 78 1 6 no yes no yes no no no no no no Presence 78 78 1 6 yes yes yes yes yes no yes no yes yes 87 .;.:-:.:.:-:.:.>".:; ,.- .. ,.. '.. ,.-.......................... . '' - -..-.' ' ' " : ; ;..<............<:-:-:.;.;.:.;.;.;-:.;.:-:;..:-:.:.'.'.:..... ',-- .-.- ' . !II'_t{I!~1\~~_ 111~I,IIII~1 Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R Murphy Extension Weed Scientist, UGA New Hope Rd., Pike County, GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME 1 GALTI, Marsh Bedstraw 2 PLALA, Buckhorn Plantain 3 ERICA, Horseweed 4 AMBEL, Common Ragweed 5 IPOLA, Pitted MOrningglOlY 6 ACCGR, Slender Copper Leaf 7 EPHNU, Nodding Spurge 8 SETGE, Knotroot Foxtail CROPS BAYER CODE, COMMONNAME 1 CYNDA, Berrnudagrass, Common, Established PLOT WIDTH x LENGTH 6.5 ft x 30 ft STUDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 INITIATION COMMENTS Plot centered on stake. Plot area mowed to height of 4 to 6 inches on 6-5-97. WEATHER STATION Griffm, GA~ 8 miles APPLICATION DATE TIME OF DAY METHOD TIMING PLACEMENT AIR TEMP., F APPLICATION INFORMATION A 6-12-97 10:00 am Spray Post Foliage 77 RR WIND VELOCITY, MPH DEVVPRESENCE,YES~O SOIL TEMP.,F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION INFORMATION 0 Yes 73 Good 50 Backpack 24 Flat fan, 8004, 19 inch Spacing 6.5 foot Length, 20 inch Height 3 VVater 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; CYNDA, Bermudagrass Green 100 %, 6 inch Height WEED STAGE AT EACH APPLICATION APPLICATION A WEED 1; GALTl, Marsh Bedstraw Fruiting WEED 2; PLALA, Buckhorn Plantain Seedhead WEED 3; ERICA, Horseweed Mowed, 7 inch Height TRIAL COMMENTS 5-10-97: MSMA = Daconate 6 X-77 = Chemnut 80/20 6-23-97: DE564 caused slight 10%) yellowing and reddening ofBermuda foliage. 89 (DE564B) University of GA Coop Ext Service EVALUATION OF DE-564 IN ACTIVELY-GROWING ROADSIDE BERMUDAGRASS AOV Means Table Trial ID: DE-564B Investigator: TIM R. MURPHY Location: PIKE CO,NEW HOPE RD Study Dir.: Tim R Murphy Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval ERICA GALTI PLALA AMBEL ERICA GALT! PLALA CYNDA CYNDA FOLIAG FOLIAG INJURY CONTROL CONTROL CONTROL CONTROL INJURY CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 06-23-97 06-23-97 06-23-97 06-23-97 06-23-97 07-08-97 07-08-97 07-08-97 07-08-97 11 DA-A 11 DA-A 11 DA-A 11 DA-A 11 DA-A 26DA-A 26DA-A 26DA-A 26DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 1 DE-564 X-77 82.5 WG 26 G AIHA FOLIAR 5 c 55 bed 53 ab 47 ab 73 b 5ed 100 a 88 a 47 ab 0.25 % VN FOLIAR 2 DE-564 X-77 82.5 WG 35 G AIHA FOLIAR 2 c 67 be 53 ab 30 ab 98 a 5ed 100 a 90 a 30 b 0.25 % VN FOLIAR 3 DE-564 X-77 4 DE-564 X-77 82.5 WG 52 G AIHA FOLIAR 2 c 60 bed 62 ab 52 a 92 a 7ed 100 a 85 a 47 ab 0.25 % VN FOLIAR c o 82.5 WG 70 G AIHA FOLIAR 5 c 73 ab 72a 30 ab 100 a 13c 100 a 82 a 53 ab 0.25 % VN FOLIAR 5 PLATEAU X-77 240 SL 70 G AIHA FOLIAR 23 ab 40 cd 0.25 % VN FOLIAR 52 ab 33 ab 87 ab 33 ab 96 a 88 a 47 ab 6 PLATEAU X-77 240 SL 105 G A/HA FOLIAR 28 a 35 d 0.25 % VN FOLIAR 53 ab 37 ab 97 a 37 a 60 b 87 a 53 ab 7 OUST X-77 75 WG 26.3 G AIHA FOLIAR 20 b 95 a 37 b 43 ab 100 a 27 b 100 a 13b 67 a 0.25 % VN FOLIAR 8MSMA X-77 719 SL 2240 G AIHA FOLIAR 5 c 95 a 62 ab 23 b 100 a Od 100 a 30 b Oc 0.25 % VN FOLIAR 9 UNTREATED CHECK oc Oe Oc Oc Oc Od Oc Ob Oc II.-LS_D...;.(P=_-_.o5..;..) 5_.2..1..._ _2.....;5.~01_~29...;,;,.2..L._ 1 _2:;,:.;1.~21_--..,;;.16;",;,,;;..3_ 1 _8_.8..1...._ _1_0...1..1.._ _40....)..1. 26_3.1 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) (DE564B) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval IntelVal AMBEL SETGE ERICA IPOLA EPHNU ACCGR CYNDA CYNDA FOLIAG FOLIAG CONTROL CONTROL DISCOLOR SUPPRESS CONTROL CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 07-08-97 07-08-97 08-07-97 08-07-97 08-07-97 08-07-97 08-07-97 08-07-97 26DA-A 26DA-A 56DA-A 56DA-A 56DA-A 56DA-A 56DA-A 56DA-A Trt Treatment No. Name Form Fm Rate Amt Ds Rate Unit Grow Stg 1 DE-564 X-77 82.5 WG 26 G A/HA FOLIAR 100 a 47 a 3 cd 5 cd 100 a 75 ab 33 c 98 a 0.25 % VIV FOLIAR 2 DE-564 X-77 82.5 WG 35 G AIHA FOLIAR 100 a 40 a 0.25 % VIV FOLIAR 8 ab 3ed 100 a 85 ab 77 ab 87 ab 3 DE-564 X-77 82.5 WG 52 G A/HA FOLIAR 100 a 47 a lOa 0.25 % VIV FOLIAR 7c 100 a 97 a 58 be 87 ab 4 DE-564 X-77 82.5 WG 70 G AIHA FOLIAR 100 a 47 a 12 a 0.25 % VIV FOLIAR 8c 100 a 100 a 62 be 97 a ... a 5 PLATEAU 240 SL 70 G AIHA FOLIAR 100 a 68 a 5be 23 b 43 b 83 ab 48 be 72b X-77 0.25 % VIV FOLIAR 6 PLATEAU X-77 240 SL 105 G AIHA FOLIAR 100 a 80 a 0.25 % VIV FOLIAR 2ed 32 a 17 c 97 a 73 ab 33 c 7 OUST X-77 75 WG 26.3 G A/HA FOLIAR 100 a 77 a 5be 25 b 98 a 63 b 40 c 68 b 0.25 % VIV FOLIAR 8 MSMA X-77 719 SL 2240 G AIHA FOLIAR 100 a 77a Od Od 98 a Oc 93 a 100 a 0.25 % VIV FOLIAR 9 UNTREATED CHECK Ob Ob Od Od Oc Oc Od Od Io-LS_D...,.;.(P=_-_.05..;..) 0_.0.1....._ _3_8.9...1..._ _4_.3.1....._ _ 5.61_ _21_.8_1_ _2_8.-..61_ _29_.01_ _17...6..1.. Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (DE564B) University of GA Coop Ext Service Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eva! Interval CYNDA ERICA SETGE IPOLA EPHNU ACCGR SUPPRESS CONTROL CONTROL CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 09-02-97 09-02-97 09-02-97 09-02-97 09-02-97 09-02-97 82 DA-A 82 DA-A 82 DA-A 82 DA-A 82 DA-A 82DA-A 1rt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 1 DE-564 X-77 82.5 WG 26 G A/HA FOLIAR Oc 0.25 % VN FOLIAR 98 a 45 abe 90 a 13 ab 98 a 2 DE-564 X-77 3 DE-564 X-77 82.5 WG 35 G A/HA FOLIAR 2 c 0.25 % VN FOLIAR 82.5 WG 52 G AIHA FOLIAR o c 0.25 % VN FOLIAR 100 a 10 be 100 a 50 a 95 a 100 a 10 be 100 a 20 ab 97 a 4 DE-564 X-77 82.5 WG 70 G AIHA FOLIAR 7be 100 a 17 abe 100 a 20 ab 98 a 0.25 % VN FOLIAR 5 PLATEAU X-77 240 SL 70 G AIHA FOLIAR 15 ab 0.25 % VN FOLIAR 87 a 33 abe 75 a 33 ab 78 ab 6 PLATEAU X-77 240 SL 105 G AIHA FOLIAR 17 a 0.25 % VN FOLIAR 47 b 55 ab 83 a 37 ab 60 b 7 OUST X-77 75 WG 26.3 G AIHA FOLIAR 12 ab 100 a 60 a 0.25 % VN FOLIAR 73 a 20 ab 77 ab 8 MSMA X-77 9 UNTREATED CHECK I....LS_D...;.(P=_-_.05...;..) 719 SL 2240 G AIHA FOLIAR 2 c 100 a 57 ab 23 b 60 a 98 a 0.25 % VN FOLIAR c Oc c Ob Ob c -'--_ _8_.5.1._ _2_6...L21_ _42_.9.1._ _3_0...L91_ _41_.31_ _26--J.71 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) AOV Means Table co It fi.ttllf__ Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist, UGA Hwy. 41 S., Pike County, GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME 1 VICSA, Common Vetch 2 TRFCA, Large Hop Clover 3 LACCA, Tall Lettuce 4 DIGSP, Southern Crabgrass 5 GALTI, Marsh Bedstraw 6 ERICA, Horseweed 7 VIOZZ, Violet spp. CROPS BAYER CODE, COMMONNAME 1 CYNDA, Bennudagrass, Common, Established PLOT WIDTH x LENGTH 6.5 ft x 30 ft STUDY DESIGN RandomizedComplete Block (RCBD) REPLICATIONS 3 APPLICATION DATE TIME OF DAY METHOD TIMING PLACEMENT AIR...T. EMP., F WIND VELOCITY, MPH DEW PRESENCE, YES/NO APPLICATION INFORMATION A 3-21-97 9:30 am Broadcast Post Foliage 61 0 Yes SOIL TEMP., F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION INFORMATION 55 Good 0 Backpack 25 Flat fan, 8004, 20 inch Spacing 6.5 foot Length, 20 inch Height 3 Water 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; CYNDA, Bermudagrass Green up 50 %, 3 inch Height WEED STAGE AT EACH APPLICATION APPLICATION A WEED 1,' JlICSA, Common Vetch 9 - 10 inch Height WEED 3; LACC4, TallLettuce 12 inch Diameter WEED 5; GALTI, Marshweed Bedstraw 6 inch Height WEED 7; JlIOZz, V'wlet Spp. Flowering TRIAL COMMENTS X-77 = 80/20 NIS, Chemnut 3-21-97: Due to extremely early spring, Bennuda greening very rapidly. About 2 to 4 weeks early. 5-21-97: Large hop clover (TRFCA) died out, so it was not rated. 6-5-97: Plots mowed to height of 4 to 6 inches. (DE-564) University of GA Coop Ext Service EVALUATION OF DE564 (DICLOSULAM) FOR USE AS A HIGHWAY ROW WEED CONTROL AND GRASS RELEASE PROGRAM COMPARED TO ROUNDUP, OUST AND TELAR. Trial 10: DE-564 Investigator: TIM R. MURPHY Location: PIKE CO., HWY 41 S Study Dir.: Tim R Murphy AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval VICSA LACCA GALTI VIOZZ TRFCA LACCA CYNDA CYNDA GREENUP CONTROL CONTROL CONTROL CONTROL CONTROL GREENUP CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 04-18-97 04-18-97 04-18-97 04-18-97 04-18-97 04-18-97 05-21-97 05-21-97 28 DA-A 28DA-A 28 DA-A 28DA-A 28 DA-A 28DA-A 61 DA-A 61 DA-A Trt Treatment No. Name Fonn Fro Rate Amt Ds Rate Unit Grow Stg< 1 DE-564 X-77 82.5 WG 26 G AEIHA FOLIAR 68 a 67 a 87 ab 80 b 87 a 100 a 80 a 83 a 0.25 %VN FOLIAR 2 DE-564 X-77 82.5 WG 35 G AEIHA FOLIAR 70 a 87 a 72 ab 87 ab 83 a 100 a 80 a 87 a 0.25 %VN FOLIAR 3 DE-564 82.5 WG 52 G AElHA FOLIAR 68 a 77 a 67 b 85 ab 78 ab 100 a 80 a 82 a X-77 0.25 %VN FOLIAR l! 4 DE-564 82.5 WG 70 G AEIHA FOLIAR 72a 70 a 95 ab 96 a 77 ab 100 a 78 a 95 a o X-77 0.25 %VN FOLIAR 5 DE-564 ROUNDUP PRO X-77 82.5 WG 35 G AEIHA FOLIAR 45 b 75 a 360 SL 213 G AEIHA FOLIAR 0.25 %VN FOLIAR 100 a 92 ab 70 abe 100 a 78 a 100 a 6 DE-564 82.5 WG 52 G AEIHA FOLIAR 42 b 70 a 87 ab 93 ab 62 be 100 a 80 a 93 a ROUNDUP PRO 360 SL 213 G AEIHA FOLIAR X-77 0.25 % VN FOLIAR 7 ROUNDUP PRO OUST TELAR 360 SL 213 G AEIHA FOLIAR 42 b 72a 75 WG 13.3 G AEIHA FOLIAR 75 WG 13.3 G AEIHA FOLIAR 83 ab 87 ab 70 abe 100 a 80 a 100 a 8 OUST TELAR X-77 75 WG 13.3 G AElHA FOLIAR 42 b 73 a 75 WG 13.3 G AEIHA FOLIAR 0.25 %VN FOLIAR 9 UNTREATED CHECK 68 a Ob 82 ab 83 ab 55 c oc Oc Od 100 a 80 a Ob 80 a 100 a " Ob I.L...S._D...;,(P=_-_.0.5.}.. --'-_ _9.6...1.._ _26_.31_ _29_.11_ _13_.11....._ _16_.01_ _0_.0..1...._ _2.2-&,1_ _21_.51 (DE-564) University of GA Coop Ext Service Weed Code Crop Code Rating Data Type Rating Vnit Rating Date Trt-Eval Interval GALT! GALTI DIGSP ERICA CYNDA CYNDA CONTROL GREENUP CONTROL SUPPRESS DENSITY CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 05-21-97 06-12-97 06-12-97 07-09-97 07-09-97 07-09-97 61 DA-A 83 DA-A 83 DA-A 110 DA-A 110 DA-A 110DA-A Trt Treatment No. Name 1 DE-564 X-77 Form Fm Rate Amt Ds Rate Unit Grow Stg 82.5 WG 26 G AEIHA FOLIAR 100 a 100 a 100 a 5a 0.25 %VN FOLIAR 12 ef 100.0 a 2 DE-564 X-77 82.5 WG 35 G AEIHA FOLIAR 100 a 100 a 100 a 3a 0.25 %VN FOLIAR 23 cde 100.0 a 3 DE-564 X-77 82.5 WG 52 G AElHA FOLIAR 100 a 100 a 100 a 8a 0.25 %VN FOLIAR 20 cde 100.0 a 4 DE-564 X-77 82.5 WG 70 G AEIHA FOLIAR 100 a 100 a 100 a 7a 0.25 %VN FOLIAR 32 bed 100.0 a 5 DE-564 ROUNDUP PRO X-77 82.5 WG 35 G AEIHA FOLIAR 100 a 100 a 100 a 7a 360 SL 213 G AEIHA FOLIAR 0.25 %VN FOLIAR 43 ab 100.0 a 6 DE-564 ROUNDUP PRO X-77 82.5 WG 52 G AEIHA FOLIAR 100 a 100 a 100 a 5a 360 SL 213 G AEIHA FOLIAR 0.25 %VN FOLIAR 48 a 100.0 a 7 ROUNDUP PRO OUST TELAR 360 SL 213 G AEIHA FOLIAR 83 a 75 WG 13.3 G AEIHA FOLIAR 75 WG 13.3 G AEIHA FOLIAR 100 a 73 b 7a 35 abc 100.0 a 8 OUST TELAR X-77 75 WG 13.3 G AEIHA FOLIAR lOb 75 WG 13.3 G AEIHA FOLIAR 0.25 %VN FOLIAR 100 a 23 c 3 a 17 de 100.0 a 9 UNTREATED CHECK Ob 100 a Od Oa Of 0.0 b I_LS_D...;.(P=_-_.05..;..} 18_.9..1..._ __0.0...1._ _17_.71_ _8_.01_ _1_5.-,0l_ _o'0--0J1 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) AOV Means Table !:11;:iiiMJ.~.ft.~~'iil.t~_8 ll Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist, UGA Zion Hope Rd., Tifton, GA CROPS I 2 3 PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS INITIATION COMMENTS WEATHER STATION CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME PASNO, Bahiagrass, Pensacola ERLOP, Centipedegrass AXOAF, Carpetgrass 6.5 ftx 20 ft Randomized Complete Block (RCBD) 3 Plots mowed 6-11-97. Plot centered on stake. Stake located 6 ft. from road. Griffin, GA; 8 miles APPLICATION DATE TIME OF DAY METHOD TlMlNG PLACEMENT AlRTEMP.,F RELATIVE HUMIDITY % WIND VELOCITY, MPH DEW PRESENCE, YES/NO SOIL TEMP.,F SOn.. MOISTURE CLOUD COVER % EQUIPMENT APPLICATION INFORMATION A 6-13-97 9:00am Spray Post Foliar 80 90 3 No 79 Fair 50 Backpack 97 OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION INFORMATION 24 Flat fan, 8004, 19 inch Spacing 6.5 foot Length, 19 inch Height Water 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; PASNO, Bahiagrass Active, 5 inch Height CROP 2; ERLOP, Centipedegrass Active, 4 inch Height CROP 3; AXOA~ Carpetgrass Active, 4 inch Height TREATMENT APPLICATION COMMENTS 5-10-97: Located test site on 6-4-97. Located on Zion Hope Rd. in Tift Co. Plots sited at Power line up to #449 Zion Hope Rd. mailbox. Mowed on 6-11-97. Sprayed two days later. 6-18-97: Injwy - yellowing ofBahiagrass (PASNO) folliage. 7-9-97: DE564 caused some injwy (20 to 25%) on Centipede (ERLOP). Caused stacking at internodes likea PGReffect. 8-11-97: Site was mowed approximately 7-30-97. Not possible to rate seedheads. (DE564BAH) University of GA Coop Ext Service EVALUATION OF DE-564 IN ACTIVELY-GROWING ROADSIDE BAHIAGRASS AOV Means Table Trial ID: DE564BAH Investigator: TIM MURPHY & BILL KLINE Location: TIFTON, ZIONHOPE RD Study Dir.: Tim R Murphy Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt~Eval Interval PASNO PASNO PASNO PASNO PASNO PASNO PASNO PASNO PASNO FOLIAG FOLIAG SEEDHD GROWTII FOLIAG SEED FOLIAG FOLIAG FOLIAG INJURY INJURY SUPPRESS SUPPRESS INJURY SUPPRESS SUPPRESS SUPPRESS DISCOLOR 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 06-18-97 06-26-97 06-26-97 06-26-97 07-09-97 07-09-97 07-09-97 08-11-97 08-11-97 5DA-A 13 DA-A 13 DA-A 13 DA-A 26DA-A 26DA-A 26 DA-A 59 DA-A 59 DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 1 DE-564 X-77 82.5 WG 26 G AIHA FOLIAR 8d 2e 30 c 23 d Oc 5b 7b Oc 2c 0.25 % VN FOLIAR 2 DE-564 X-77 82.5 WG 35 G AIHA FOLIAR lOed 8d 43 c 30 c 5c 12 b 15 b 3c 5c 0.25 % VN FOLIAR 3 DE-564 X-77 82.5 WG 52 G AIHA FOLIAR 12 cd 12 ed 45 c 33 c 3c 12 b 12 b Oc 3c 0.25 % VN FOLIAR 4 DE-564 X-77 82.5 WG 70 G AIHA FOLIAR 13bc 15 c 70 b 42 b 5c 15 b 18 b 10 c 5c 0.25 % VN FOLIAR 5 PLATEAU X-77 240 SL 35 G AlHA FOLIAR 12 cd 28 b 100 a 53 a 40 b 99 a 58 a 40 a 15 b 0.25 % VIV FOLIAR 6 PLATEAU X-77 240 SL 70 G AIHA FOLIAR 17 b 38 a 100 a 55 a 58 a 100 a 63 a 47 a 25 a 0.25 %VN FOLIAR 7 OUST 75 WG 26.3 G AlHA FOLIAR 22 a 40 a 99 a 57 a 37 b 99 a 52 a 22 b 2c X-77 0.25 % VN FOLIAR 8 UNTREATED CHECK oe Oe Od Oe oc Ob Ob Oc oc I_LS_D...;.,(P_=._05...;..) -..1 _ _4_.3.1...._ _5.1..L1_ _2_1.....J71_ _6....2..1. _ _10_.7&.-1_ _15_.6.1.._ _2_0.3...&.1_ _9..6..L1_ _8..,.j.l1 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (DE564BAH) University of GA Coop Ext Service Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval PASNO STAND DENSITY 0-100 08-11-97 59 DA-A Trt Treatment No. Name Form Fm Rate Amt Ds Rate Unit Grow Stg 1 DE-564 X-77 82.5 WG 26 G AIHA FOLIAR 90 a 0.25 % VN FOLIAR 2 DE-564 X-77 82.5 WG 35 G AIHA FOLIAR 85 ab 0.25 % VN FOLIAR 3 DE-564 X-77 82.5 WG 52 G AIHA FOLIAR 88 a 0.25 % VN FOLIAR 4 DE-564 X-77 82.5 WG 70 G AlHA FOLIAR 83 ab 0.25 % VN FOLIAR 5 PLATEAU X-77 240 SL 35 G AIHA FOLIAR 68 c 0.25 % VN FOLIAR 6 PLATEAU X-77 240 SL 70 G AIHA FOLIAR 53 d 0.25 % VN FOLIAR 7 OUST X-77 75 WG 26.3 G AIHA FOLIAR 80 b 0.25 % VN FOLIAR 8 UNTREATED CHECK 90 a ILSD (P=.05) MRn Means followed by same letter do not significantly differ (P=.05, Duncan's New AOVMeans Table c C r- Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist, UGA Georgia Station, Griffm, GA WEEDS 1 2 CROPS 1 PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS FIELD PREPARATION CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME SORRA, Johnsongrass DIGSP, Southern Crabgrass BAYER CODE, COMMONNAME CYNDA, Bennudagrass, Conunon Roadside, Established 5 ft x 30 ft Randomized Complete Block (RCBD) 3 Plot area mowed to approximately 6 inches 2 weeks prior to treatment APPUCATION DATE TIME OF DAY METHOD TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH DEW PRESENCE,YESINO SOIL TEMP., F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI APPUCATION~ORMATroN A 8-5-97 10:30 am Broadcast Post Foliar 83 4 No 77 Good 0 Backpack 30 101 NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPUCATION~ORMATION Flat fan. 11003, 20 inch Spacing 5 ft. Length, 19 inch Height 3 Water 20 CO2 WEED STAGE AT EACH APPUCATION APPUCATION A WEED 1; SORRA, Johnsongrass Active, 20 inch Density TRIAL COMMENTS All rates are product/acre. MON37536 is fairly damaging to Fescue. May have potential to take Fescue out of Bennudagrass turf. Bennudagrass and Bahiagrass have excellent tolerance to MON37536. MON37536 - 75% WDG - LOT # CER-9604-7088-F. 8-12-97: Knotroot foxtail was not present enough to rate. 9-30-97: Johnsongrass (SORRA) regrowth occurring in all plots. lO? (ROAD 197) University of GA Coop Ext Service EVALUATION OF MON37536 FOR JOHNSONGRASS [SORHA] CONTROL IN ROADSIDE BERMUDAGRASS [CYNDA]. Trial 10: ROAD197 Investigator: Tim Murphy Location: GA STATION Study Dir.: Tim R Murphy AOV Means Table Weed Code Part Rated Rating Data Type Rating Unit Rating Date TIt-Eval Interval SORHA DIGSP SORHA DIGSP SORHA DIGSP SORHA DIGSP PLANT PLANT PLANT PLANT PLANT PLANT PLANT PLANT CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 08-12-97 08-12-97 08-19-97 08-19-97 09-02-97 09-02-97 09-30-97 09-30-97 7DA-A 7DA-A 14DA-A 14DA-A 28DA-A 28DA-A 56DA-A 56DA-A TIt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 01 MON37536 75 WG 0.66 OVA POST 25 d Oc 63 b Oc 82 a 7c 83 b Ob Nonionic Surfactant L 0.5 %VN 02 MON37536 75 WG 1.33 OVA POST 43 c Oc 82 a Oc 88 a 43 b 92 a 20 b l"'1 Nonionic Surfactant L 0.5 %VN 0,' r-i 03 MON37536 Roundup Pro 75 WG 0.66 OVA POST 67 ab 85 a 77 a 97 a 83 a 87 a 78 c 68 a 4 SL 8.0 OVA POST 04 MON37536 Roundup Pro 75 WG 0.66 OVA POST 75 a 88 a 88 a 97 a 93 a 98 a 85 b 98 a 4 SL 12.0 OVA POST 05 MON37536 Roundup Pro 75 WG 1.33 OVA POST 57 b 77a 82 a 90 a 88 a 87 a 83 b 77 a 4 SL 8.0 OVA POST 06 MON37536 Roundup Pro 75 WG 1.33 OVA POST 70 a 82 a 85 a 92 a 92 a 92 a 85 b 94 a 4 SL 12.0 OVA POST 07 MSMA 6.0 SL 3.0 PT/A POST 73 a 5S b 80 a 52 b 70 b 43 b 67 d 30 b 08 Untreated Check oe Oc Oc Oc Oc Oc Oe Ob I.L...S. _D__(P=_-_.0_5_) 1__ 1__ .4I 10_.6.... l_S.8~1_ _13.....1.111...--_8_.91_ _11_.4.... 2_1.-'11_ _4_.21_ _28..... Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R. Murphy Extension Weed Scientist. UGA Hwy. 341, LamarCounty, GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME 1 CIRHO, Yellow Thistle 2 SOOZZ, Goldenrod spp. 3 GERCA, Carolina Geranium 4 ALLVI, Wild Garlic 5 GNAZZ, Cudweed spp. 6 TRFCA, Large Hop Clover LACCA, Tall Lettuce CROPS BAYER CODE, COMMONNAME 1 CYNDA, Bennudagrass, Common, Established 2 PASNO, Bahiagrass, Pensacola, Established PLOT WIDTH x LENGTH 10 ft x 20 ft STUDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 APPLICATION DATE TlMEOFDAY METHOD TIMING AIR TEMP.,F WIND VELOCITY, MPH DEW PRESENCE, YES/NO SOIL TEMP.,F SOIL MOISTURE APPLICATION INFORMATION A 2-11-97 8:30 am Broadcast Post 38 6 No 36 Wet 104 Site Description CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION INFORMATION 0 Backpack 30 Flat fan, 11004, 19 inch Spacing 5 foot Length, 19 inch Height 3 Water 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1,' CYNDA, Bermudagrass Dormant CROP 2; PASNO, Bahiagrass Dormant WEED STAGE AT EACH APPLICATION APPLICATION A WEED 1; CIRHO, Yellow Thistle 6 inch Diameter WEED 2; SOOZz, Goldenrod spp. 4 inch Diameter WEED 3; GERCA, Carolina Geranium 4 inch Diameter WEED 4; ALLVI, Wdd Garlic 10 inch Height TRIAL COMMENTS 4-22-97: Test site very dry. Wild garlic and Carolina geranium not rated, these have essentially died out in checks. 6-5-97: Plots mowed to height of 4 to 6 inches. 105 (VETERAN) CONTROL OF WINTER WEEDS USING VETERAN University of GA Coop Ext Service AOV Means Table Trial ID: VETERAN Location: HWY. 341 Investigator: TIM R. MURPHY Study Dir.: Tim R Murphy Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ALLYl GERCA GNAZZ CIRHO SOOZZ ALLYl GERCA GNAZZ CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 02-27-97 02-27-97 02-27-97 02-27-97 02-27-97 03-27-97 03-27-97 03-27-97 16DA-A 16DA-A 16 DA-A 16DA-A 16 DA-A 44DA-A 44DA-A 44DA-A Trt Treatment No. Name Fonn Fro Rate Amt Ds Rate Unit Grow Stg 1 VETERAN 2010 3.75 SL 24 FL OZIA NCPOPE 40 be 60 b 37 e 43 ab 72 ab 75 a 100 a 97 a 2 VETERAN 2010 3.75 SL 32 FLOZIA NCPOPE 48 abe 77a 37 e 30 abe 63 be 78 a 100 a 93 a 3 VETERAN 2010 3.75 SL 48 FL OZIA NCPOPE 67 a 77a 43 abc 20 be 73 a 67 a 100 a 85 a 4 VETERAN 10 G 30.5 LB/A NCPOPE 50 abe 67 ab 50 a 35 ab 57 e 88 a 93 b 100 a 5 VETERAN lOG 43.56 LB/A NCPOPE 63 ab 78 a 47 ab 37 ab 73 a 77a 100 a 93 a 6 VETERAN 10 G 65.34 LB/A NCPOPE 72a 77a 40 be 60 a 67 ab 70 a 100 a 100 a 7 ROUNDUP PRO OUST TELAR 4 SL 8.0 FL OZIA NCPOPE 37 e 73 ab 47 ab 37 ab 40 d 85 a 100 a 93 a 75 WG 0.250ZlA NCPOPE 75 WG 0.250ZlA NCPOPE 8 UNTREATED CHECK Od Oe Od Oe Oe Ob Oe Ob I.L..S._D....,;",(P_=._05.>.... 23_.0..1...._ _1_5.0...1.._ _8..2.....1'--_31_.91_ _8.....1.71....._ _19_.71....._ _1_.81_ _14--71.1 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) (VETERAN) Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval AOV Means Table University of GA Coop Ext Service CIRHO sooZi CIHRO SOOZZ TRFCA LACCA PASNO CYNDA CONTROL CONTROL GREENUP GREENUP CONTROL CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 03-27-97 03-27-97 03-27-97 03-27-97 04-22-97 04-22-97 04-22-97 04-22-97 44DA-A 44DA-A 44DA-A 44DA-A 70DA-A 70DA-A 70DA-A 70DA-A Trt Treatment No. Name FormFm Rate Amt Ds Rate Unit Grow Stg I VETERAN 2010 3.75 SL 24 FL OVA NCPOPE 85 a 100 a 57 a 52 a 93 a 87 a 94 a 100 a 2 VETERAN 2010 3.75 SL 32 FLOVA NCPOPE 87 a 100 a 60 a 53 a 95 a 95 a 92 a 100 a 3 VETERAN 2010 3.75 SL 48 FL OVA NCPOPE 93 a 100 a 60 a 55 a 97 a 99 a 99 a 100 a 4 VETERAN 10 G 30.5 LBtA NCPOPE 93 a 97 a 57 a 52 a 93 a 86 a 90 a 99 a 5 VETERAN lOG 43.56 LBtA NCPOPE 97 a 100 a 60 a 52 a 93 a 97 a 88 a 100 a 6 VETERAN 10 G 65.34 LBtA NCPOPE 100 a 100 a 57 a 47 a 100 a 100 a 88 a 100 a 7 ROUNDUP PRO 4 SL 8.0 FL OVA NCPOPE 93 a 90b 57 a 47 a OUST 75 WG 0.25 OVA NCPOPE TELAR 75 WG 0.25 OVA NCPOPE 8 UNTREATED CHECK Ob oc 57 a 53 a 87 a 78 a 91 a 100 a Ob Ob Ob Ob ILSD (p=.05) 7.81 12.71 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (VETERAN) University of GA Coop Ext Service Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval PASNO CYNDA PASNO CYNDA GREENUP GREENUP GREENUP GREENUP 0-100 0-100 0-100 0-100 04-22-97 04-22-97 06-12-97 06-12-97 70DA-A 70DA-A 121 DA-A 121 DA-A Trt Treatment No. Name Form Fm Rate Amt Ds Rate Unit Grow Stg 1 VETERAN 2010 3.75 SL 24 FL OZJA NCPOPE 72b 63 ab 100 a 90 a 2 VETERAN 2010 3.75 SL 32 FL OZJA NCPOPE 73 ab 63 ab 100 a 90 a 3 VETERAN 2010 3.75 SL 48 FL OZJA NCPOPE 73 ab 60 ab 100 a 90 a 4 VETERAN 10 G 30.5 LB/A NCPOPE 73 ab 65 a 100 a 90 a 5 VETERAN 10 G 43.56 LB/A NCPOPE 73 ab 60 ab 100 a 90 a 6 VETERAN 10 G 65.34 LB/A NCPOPE 72b 62 ab 100 a 90 a 7 ROUNDUP PRO OUST TELAR 4 SL 8.0 FL OZJA NCPOPE 73 ab 58 b 75 WG 0.250ZJA NCPOPE 75 WG 0.250ZJA NCPOPE 100 a 90 a 8 UNTREATED CHECK I_LS_D...;.{P_=_.05..;..) 75 a 60 ab 100 a 90 a s_.sl_ _ ---&._ _2....1.81l-_ _ 0_.01_ _0--'.01 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) AOV Means Table Itillillil.f . .llit.". Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R Murphy Extension Weed Scientist, UGA Hwy. 341, Spalding County, GA WEEDS 1 2 3 4 5 6 7 8 9 10 CROPS 1 2 3 PLOT WIDTH x LENGTH SITE TYPE STUDY DESIGN REPLICATIONS FIELD PREPARATION INITIATION COMMENTS WEATHER STATION CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME TRFCA, Large Hop Clover ALLVI, Wild Garlic GERCA, Carolina Geranium GNAZZ, Cudweed spp. SOOZZ, Goldenrod spp. PLALA, Buckhorn Plantain ERICA, Horseweed DIGSP, Southern Crabgrass LACCA, Tall Lettuce SETGE, Knotroot Foxtail BAYER CODE, COMMONNAME CYNDA, Bennudagrass, Common, Established FESAR, Fescue, KY 31, Established PASNO, Bahiagrass, Pensacola, Established 6.5 ft x 60 ft Grass roadside right ofway Randomized Complete Block (RCBD) 3 Plot area mowed to 6 inches in November. Sprayed on center stake - 6.5 ft. On lOft. centers. Griffin, GA 109 APPLICATION DAm TlMEOFDAY METHOD TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH DEW PRESENCE, YESINO SOIL TEMP., F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION INFORMATION A 1-27-97 2:00pm Broadcast PreIPost Ground 68 7 No 55 Wet 0 Backpack 30 Flat fan, 8004, 20 inch Spacing 6.5 foot Length, 20 inch Height 3 Water 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; CYNDA, Bermudagrass Dormant CROP 2; FESAR, Fescue Vegetative, 6 inch Height CROP 3; PASNO, Bahiagrass Dormant WEED STAGE AT EACH APPLICATION APPLICATION A WEED 2; ALLVI, Wdd Garlic 8 inch Height, 20% Density WEED 3; GERCA, Carolina Geranium 4 inch Diameter, 40% Density WEED 4; GNAZZ, Cudweed spp. Rosette, 10% Density WEED 6, SOOZZ, Goldenrod spp. Rosette, 5% Density WEED 7; PLALA, Buckhorn Plimtain 1 - 4 inch Diameter 11 () (USA-97-4) University of GA Coop Ext Service R6447 TANK MIXTURES FOR WINTER WEED CONTROL ON BERMUDAGRASS ROADSIDES AOV Means Table Trial ID: USA-97-405 Investigator: TIM R. MURPHY Location: HWY.341 , SPLDG CNTY Study Dir.: Tim R Murphy Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ALLYl GERCA GNAZZ SOOZZ PLALA ALLYl LACCA FESAR CONTROL CONTROL CONTROL CONTROL CONTROL INJURY CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 03-03-97 03-03-97 03-03-97 03-03-97 03-03-97 03-03-97 03-27-97 03-27-97 35 DA-A 35 DA-A 35 DA-A 35 DA-A 35 DA-A 35 DA-A 59DA-A 59DA-A Trt Treatment No. Name 1 R6447 2 R6447 Fonn Fm Rate Grow Amt Ds Rate Unit Stg 80 DF 0.125 LB AlA PREIPO o c 47 b 67 a Oe 80 DF 0.25 LB AlA PREIPO Oc 100 a 83 a oe 17 e 12 de Oe 43 d 28 cd 23 de Od 50 be 3 R6447 80 DF 0.5 LB AlA PREIPO 30 b 100 a 100 a 33 d 57 cd 58 a 37 cd 47 be 4 ROUNDUP ULTRA 5 OUST 4.0 SC 0.5 LB AlA PREIPO 40 b 75 DF 0.047 LB AlA PREIPO 60 a 97 a 100 a 75 abe 60 cd 35 be 27 cde 100 a 95 a 83 a 70 be 100 a 28 cd 93 a 23 cd .... 6 R6447 80 DF 0.125 LB AlA PREIPO 58 a 100 a 100 a 75 abe 100 a 40 be 53 bed 93 a ROUNDUP ULTRA 4.0 SC 0.5 LB AlA PREIPO 7 R6447 ROUNDUP ULTRA 80 DF 0.25 LB AlA PREIPO 62 a 4.0 SC 0.5 LB AlA PREIPO 100 a 100 a 92 a 83 abe 58 a 58 be 97 a 8 R6447 ROUNDUP ULTRA 80 DF 0.5 LB AlA PREIPO 65 a 4.0 SC 0.5 LB AlA PREIPO 100 a 100 a 90 a 97 a 67 a 70 ab 100 a 9 R6447 OUST 80 DF 0.125 LB AlA PREIPO 73 a 75 DF 0.047 LB AlA PREIPO 100 a 100 a 65 c 60 cd 32 be 83 ab 53 be 10 R6447 OUST 80 DF 0.25 LB AlA PREIPO 70 a 75 DF 0.047 LB AlA PREIPO 100 a 100 a 75 abe 70 be 33 be 98 a 77 ab 11 R6447 OUST 80 DF 0.5 LB AlA PREIPO 77a 75 DF 0.047 LB AlA PREIPO 100 a 100 a 83 ab 93 ab 63 a 97 a 100 a 12 R6447 OUST 80 DF 0.25 LB AlA PREIPO 68 a 100 a 100 a 78 abe 77 abe 50 ab 97 a 97 a 75 DF 0.07 LB AlA PREIPO (USA-97-4) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ALLYl GERCA GNAZZ SOOZZ PLALA ALLYl LACCA FESAR '~ CONTROL CONTROL CONTROL CONTROL CONTROL INJURY CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 03-03-97 03-03-97 03-03-97 03-03-97 03-03-97 03-03-97 03-27-97 03-27-97 35 DA-A 35 DA-A 35 DA-A 35 DA-A 35 DA-A 35 DA-A 59DA-A 59 DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 13 R6447 OUST 14 UNTREATED CHECK 80 DF 0.125 LB NA PREIPO 70 a 75 DF 0.07 LB N A PREIPO Oc 100 a oc 100 a Ob 78 abc oe 73 abc 48 ab 95 a oe oe Oe 73 ab Od /LSD (p=.OS) 18.21 6.71 31.51 15.11 23.71 16.61 29.71 34.81 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) ..r.... (USA-97-4) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval SOOZZ SOOZZ LACCA TRFCA FESAR CYNDA PASNO FESAR CYNDA CONTROL INJURY GREENUP CONTROL CONTROL CONTROL INJURY INJURY GREENUP 0-100 0-100 0-100 0-100 0-100 0-100 0-100 . 0-100 0-100 03-27-97 03-27-97 03-27-97 04-21-97 04-21-97 04-21-97 04-21-97 04-21-97 04-21-97 59 DA-A 59DA-A 59DA-A 84 DA-A 84 DA-A 84 DA-A 84DA-A 84DA-A 84DA-A Trt Treatment No. Name 1 R6447 2 R6447 Fonn Fm Rate Grow Amt Ds Rate Unit Stg 80 DF 0.125 LB AlA PREIPO o c 80 DF 0.25 LB AlA PREIPO Oc 7j 47 a 42 gh 33 a Ob 50 abe Oc 7e 13e 60 a Ob 67 ab 43 b 13 de 20 de 45 abe 3 R6447 80 DF 0.5 LB AlA PREIPO Oc 77 bed 47 a 7b 33 be 67 ab 23 cde 60 abe 53 ab 4 ROUNDUP ULTRA 4.0 SC 0.5 LB AlA PREIPO 83 ab 30 hi 48 a 83 a 92a 85 a Oe 40 cd 45 abe 5 OUST 75 DF 0.047 LB AlA PREIPO 77 ab 52 fg 17 b 80 a 33 be 90 a 40 a-d 67 ab 33 c 6 R6447 80 DF 0.125 LB AlA PREIPO 85 a 22 i 47 a 75 a 93 a ROUNDUP ULTRA 4.0 SC 0.5 LB AlA PREIPO 72 ab 13 de 17 e 47 abe 7 R6447 80 DF 0.25 LB AlA PREIPO 70 ab 62 ef 48 a 78 a 95 a ROUNDUP ULTRA 4.0 SC 0.5 LB AlA PREIPO 93 a 20 cde 52 be 47 abe 8 R6447 80 DF 0.5 LB AlA PREIPO 83 ab 63 def 47 a 83 a 93 a 100 a 12 e 58 abe 47 abe ROUNDUP ULTRA 4.0 SC 0.5 LB AlA PREIPO 9 R6447 OUST 80 DF 0.125 LB AlA PREIPO 63 ab 75 cde 13b 67 a 30 be 100 a 28 b-e 57 abe 32 c 75 DF 0.047 LB AlA PREIPO 10 R6447 OUST 80 DF 0.25 LB AlA PREIPO 70 ab 80 abe 12 b 85 a 57 abc 100 a 42 abc 77a 37 be 75 DF 0.047 LB AlA PREIPO 11 R6447 OUST 80 DF 0.5 LB AlA PREIPO 68 ab 92a 8b 83 a 93 a 100 a 53 ab 73 ab 33 c 75 DF 0.047 LB AlA PREIPO 12 R6447 OUST 80 DF 0.25 LB AlA PREIPO 63 ab 90 ab 12 b 67 a 57 abe 100 a 67 a 77a 37 be 75 DF 0.07 LB AlA PREIPO 13 R6447 80 DF 0.125 LB AlA PREIPO 53 b 83 abe 8b 70 a 27 be 100 a 63 a 80 a 43 be OUST 75 DF 0.07 LB AlA PREIPO 14 UNTREATED CHECK Oc OJ 48 a Ob Oc oe Oe Oe 42 be I'--LS_D...;,{P=_-_.05...;..} 26_.61_ _13_.1...1..._ _l_4...181'---_24_.0...1..._ _50_.71_ _37_.8..1..._2_4..8..1.._ _20_.71_ _14.....J.41 (USA-97-4) University of GA Coop Ext Service Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ERICA DIPSP SETGE PASNO FESAR CYNDA CONTROL CONTROL CONTROL DENSITY DENSITY DENSITY 0-100 0-100 0-100 0-100 0-100 0-100 07-08-97 07-08-97 07-08-97 07-08-97 07-08-97 07-08-97 162 DA-A 162 DA-A 162 DA-A 162 DA-A 162 DA-A 162 DA-A Trt Treatment No. Name I R6447 2R6447 Form Fm Rate Grow Amt Ds Rate Unit Stg 80 DF 0.125 LB NA PREIPO o c 83 a 80 DF 0.25 LB NA PREIPO o c 78 a Oc 35 a-d 3c 25 ab oc 38 a-d 7 abc 13 ab 3 R6447 80 DF 0.5 LB NA PREIPO 7 c 97 a 10 c 33 bed 5be 32 a 4 ROUNDUP ULTRA 4.0 SC 0.5 LB NA PREIPO 78 b Oe 13 be 53 a 5be 23 ab 5 OUST 75 DF 0.047 LB NA PREIPO 97 a Oe 40 abe 28 cd 8 ab 18 ab 6 R6447 80 DF 0.125 LB NA PREIPO 73 b 25 e lOe 33 bed 10 a 28 ab ROUNDUP ULTRA 4.0 SC 0.5 LB NA PREIPO 7 R6447 ROUNDUP ULTRA 80 DF 0.25 LB NA PREIPO 77b 4.0 SC 0.5 LB NA PREIPO 63 ab 20 abe 47 abe 7 abe 20 ab 8 R6447 80 DF 0.5 LB NA PREIPO 90 a 93 a ROUNDUP ULTRA 4.0 SC 0.5 LB NA PREIPO 17 abc 52 ab 7 abe 13 ab 9 R6447 OUST 80 OF 0.125 LB NA PREIPO 100 a 17 e 75 DF 0.047 LB NA PREIPO 23 abe 35 a-d 10 a 13 ab 10 R6447 OUST 80 DF 0.25 LB NA PREIPO 98 a 75 DF 0.047 LB NA PREIPO 37 be 13 be 32 cd 7 abe 18 ab 11 R6447 OUST 80 DF 0.5 LB NA PREIPO 100 a 82 a 75 DF 0.047 LB NA PREIPO 20 abe 43 abe 7 abe lOb 12 R6447 OUST 80 DF 0.25 LB NA PREIPO 98 a 27 c 75 DF 0.07 LB NA PREIPO 53 ab 33 bed 5be 22 ab 13 R6447 OUST 80 DF 0.125 LB NA PREIPO 100 a Oe 57 a 20 d 7 abe 25 ab 75 DF 0.07 LB NA PREIPO 14 UNTREATED CHECK Oc Oe Oe 35 a-d 8 ab 13 ab I'-LS_D...;.(P=_-_.05..;..) ..L.-_l_0.-181_ _34_.8.1-1_ _3_7.-1.31_ _1_6.31_ _4.1...1.._ _18_.31 AOV Means Table ili";11:1!lm.'O:~li.l.r.,._ Site Description STIJDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R. Murphy Extension Weed Scientist. UGA Lamar County, GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME 1 ALLVI, Wild Garlic 2 GERCA, Carolina Geranium 3 TJDPE, Common Venus Looking glass 4 AMBEL, Common Ragweed 5 GNAZZ, Cudweed Spp. 6 VICSA, Common Vetch 7 ERICA, Horseweed 8 SONOL, Annual Sowthistle CROPS BAYER CODE, COMMONNAME 1 CYNDA, Bermudagrass, Established, 20 % DOlmant PLOT WIDTH x LENGTH 10 ft x 30 ft STIJDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 FIELD PREPARATION Plot area mowed to 6 inches on 11-18-96. SOIL INFORMATION Sandy Loam, 62 % Sand, 20 % Silt, 18 % Clay, 5.5 pH WEATHER STATION Griffin,GA APPLICATION DATE TIME OF DAY METHOD TIMING PLACEMENT APPLICATION INFORMATION A B C 11-20-96 12-17-96 1-21-97 10-11am 8- 9 am 2-3pm Broadcast PrelPost PrelPost PrelPost FoHar/Ground D E 2-18-97 3-11-97 11 am - 12pm 12 - 1 pm Post Post , , ,... APPLICATION INFORMATION APPLICATION A B C D AIRTEMP.,F 58 40 73 64 WIND VELOCITY, MPH 5 0 4 3 DEW PRESENCE,YESINO No No No No SOIL TEMP., F 54 46 53 47 SOIL MOISTURE Good Wet Good Nonnal EQUIPMENT Backpack OPERATING PSI 20 20 21.5 20 NOZZLE INFORMATION Flat fan, 11004,20 inch Spacing BOOM INFORMATION 5 foot Length, 19 inch Height GROUND SPEED, MPH 3 CARRIER Water SPRAY VOLUME, GPA 25 PROPELLANT CO2 E 75 3 No 65 Nonnal 20 APPLICATION CROP 1; CYNDA, Bermudagrass CROP STAGE AT EACH APPLICATION A B C D Donnant80% Donnant 100% Donnant 100% Donnant 100% E Greenup 20% APPLICATION WE~D 1, ALL VI, WlldGarlic WEED 2; GERCA Carolina Geranium WEED 3, TJDPE, Common Venus Lookingglass WEED STAGE AT EACH APPLICATION A B C D 6 in. Height 8 in. Height 8 - lOin. Height 12 in. Height E 15 in. Height -- 4 in. Diameter 4-6 in. Diameter 6 in. Diameter 8 in. Diameter -- -- -- 1-2 in. Height 3-4 in. Height Surfactant: Chern Nut 80/20 Crop Oil Concentrate, COC: Sun-it MSO: Oust = DPX-T5648-66 TRIAL COMMENTS , 1 C. (DOTLAM97) University of GA Coop Ext Service EVALUATION OF PLATEAU AND OUST FOR WINTER WEED CONTROL ON BERMUDAGRASS ROADSIDES 1997 Trial ID: DOTLAM97 Investigator: TIM R. MURPHY Location: LAMAR CO., HWY 341 Study Dir.: Tim R Murphy AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ALLYl GERCA TJDPE ALLYl GERCA TJDPE ALLYl CYNDA CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL GREENUP CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 02-18-97 02-18-97 02-18-97 03-11-97 03-11-97 03-11-97 03-11-97 04-21-97 90 DA-A 90 DA-A 90DA-A 111 DA-A III DA-A 111 DA-A III DA-A 152 DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 1 PLATEAU Crop Oil Cone 2 SC 094 LB AIA NOVEMBER 99 a L 2 PT/A 100 a 100 a 100 a 100 a 67 be 20 be 100 a 2 PLATEAU Crop Oil Cone 2 SC 156 LB AlA NOVEMBER 100 a 100 a 100 a 100 a 100 a 84 ab 23 b L 2 PT/A 100 a 3 OUST SURFACTANT 75 DG 046 LB AIA NOVEMBER 100 a 25%VN 100 a 63 b 100 a 100 a 45 cd 13bcd 100 a 4 OUST SURFACTANT 5 NO HERBICIDE 75 DG 074 LB AlA NOVEMBER 87 b 25%VN NOVEMBER oe 100 a oe 70 ab 100 a 100 a 30 d Oe Oe Oe Oe 8 bed 18 be 100 a Oe 6 PLATEAU Crop Oil Cone 2 SC 094 LB AlA DECEMBER 100 a 100 a 100 a 100 a 100 a 83 ab 22 b L 2 PT/A 100 a 7 PLATEAU 2 SC 156 LB AlA DECEMBER 100 a 100 a 100 a 100 a 100 a 97 a 45 a 100 a Crop Oil Cone L 2 PT/A 8 OUST SURFACTANT 75 DG 046 LB AlA DECEMBER 100 a 25 %VN 100 a 63 b 100 a 100 a 62 be 6 bed 100 a 9 OUST SURFACTANT 10 NO HERBICIDE 75 DG 074 LB AlA DECEMBER 100 a 25 %VN DECEMBER oe 100 a oe 98 a 100 a 100 a 73 ab 3 cd 100 a Oe oe Oe oe 23 b oe 11 PLATEAU Crop Oil Cone 2 SC 094 LB AlA JANUARY 93 ab 100 a 100 a 100 a 100 a 83 ab 22 b L 2 PT/A 100 a (DOTLAM97) Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval AOV Means Table University of GA Coop Ext Serviee ALLYl GERCA TJDPE ALLYl GERCA TJDPE CYNDA ALLYl CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL GREENUP CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 02-18-97 02-18-97 02-18-97 03-11-97 03-11-97 03-11-97 03-11-97 04-21-97 90 DA-A 90DA-A 90 DA-A 111 DA-A III DA-A III DA-A III DA-A 152 DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 12 PLATEAU .Crop Oil Cone 2 SC 156 LB AlA JANUARY 96 ab 100b 100 a 100 a 100 a 97 a L 2 PT/A 17 bed 100 a 13 OUST SURFACTANT 75 DG 046 LB AlA JANUARY 100 a 25%VN 100 a 98 a 100 a 100 a 72 ab 2 ed 100 a 14 OUST SURFACTANT 15 NO HERBICIDE 75 DG 074 LB AlA JANUARY 25%VN JANUARY 100 a Oe 100 a Oe 100 a oe 100 a Oe 100 a oe 85 ab oe Od 20 be 100 a oe 16 PLATEAU Crop Oil Cone 2 SC 094 LB AlA FEBRUARY L 2 PT/A 100 a 93 b 98 a 8 bed 100 a 17 PLATEAU Crop Oil Cone 2 SC 156 LB AlA FEBRUARY L 2 PT/A 100 a 93 b 98 a 8 bed 100 a 18 OUST SURFACTANT 75 DG 046 LB AlA FEBRUARY 25 %VN 95 b 90 b 88 ab Od 100 a 19 OUST SURFACTANT 20 NO HERBICIDE 75 DG 074 LB AlA FEBRUARY 25%VN FEBRUARY 97 ab 99 a 99 a Od 97 a Oe Oe oe 22 b oe 21 PLATEAU 2 SC 094 LB AlA MARCH 97 a Crop Oil Cone L 2 PT/A 22 PLATEAU Crop Oil Cone 2 SC 156 LB AlA MARCH L 2 PT/A 100 a 23 OUST 75 DG 046 LB AlA MARCH 80 b SURFACTANT 25 %VN 24 OUST 75 DG 074 LB AlA MARCH. 87 b SURFACTANT 25%VN ---..>1 \_./ (DOTLAM97) Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval InteIVal Trt Treatment No. Name Form Fm Rate Amt Ds Rate Unit 25 NO HERBICIDE I_LS_D...;.{P=_-_.05..;..} Grow Stg MARCH University of GA Coop Ext SeIVice AOV Means Table ALLYl GERCA TJDPE ALLYl GERCA TJDPE ALLYl CYNDA CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL GREENUP CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 02-18-97 02-18-97 02-18-97 03-11-97 03-11-97 03-11-97 03-11-97 04-21-97 90 DA-A 90 DA-A 90 DA-A 111 DA-A III DA-A III DA-A III DA-A 152DA-A Oc oc Oe 20 be Oc 11_.2..1..._ _0._21_ _25_8.1_ _2_8.&..1_ _3.9...1.._ _2_4.--&21_ _15_.2[_ _8_.71 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (DOTLAM97) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval TJDPE VlCSA ERICA SONOL GNAZZ AMBEL CYNDA CYNDA CONTROL CONTROL GREENUP CONTROL CONTROL CONTROL CONTROL GREENUP 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 04-21-97 04-21-97 04-21-97 05-21-97 05-21-97 05-21-97 05-21-97 05-21-97 152DA-A 152DA-A 152DA-A 182 DA-A 182 DA-A 182 DA-A 182DA-A 182 DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Os Rate Unit Stg 1 PLATEAU Crop Oil Cone 2 SC 094 LB NA NOVEMBER 57 e-f L 2 PT/A Od 63 ab 23 bed 58 a-d 43 b-f 33 be 82 ab 2 PLATEAU Crop Oil Cone 2 SC 156 LB NA NOVEMBER 88 a-d L 2 PT/A 32 cd 62 ab 27 bed 85 a 63 a-e 53 ab 80 abe 3 OUST SURFACfANT 75 DG 046 LB NA NOVEMBER 17 gh 25%VN 100 a 60 abe 100 a 27 b-e 23 ef 100 a 77 a-e 4 OUST 75 DG 074 LB NA NOVEMBER 20 gh 100 a 48 def 100 a 20 ede 30 def 100 a 70 ef SURFACfANT 25 %VN 5 NO HERBICIDE NOVEMBER Oh Od 58 a-d Od oe Of Oe 78 a-d 6 PLATEAU 2 SC 094 LB NA DECEMBER 57 e-f 33 cd 53 b-e 23 bed 57 a-d 70 a-e 33 be 78 a-d o N Crop Oil Cone L 2 PT/A ........ 7 PLATEAU Crop Oil Cone 2 SC 156 LB NA DECEMBER 90 a-d L 2 PT/A 62 abe 65 a 17 ed 82 a 88 ab 67 ab 78 a-d 8 OUST SURFACfANT 9 OUST SURFACTANT 10 NO HERBICIDE 75 DG 046 LB NA DECEMBER 27 fgh 25%VN 75 DG 074 LB NA DECEMBER 37 efg 25 %VN DECEMBER Oh 100 a 100 a Od 50 e-f 45 efg 65 a 100 a 100 a Od 17 ede oe oe 65 a-e 92 ab Of 100 a 100 a Oe 75 b-e 73 ede 80 abe 11 PLATEAU Crop Oil Cone 2 SC 094 LB N A JANUARY 97 ab L 2 PT/A 27 cd 62 ab 57 abe 62 abe 60 a-e 33 be 82 ab 12 PLATEAU Crop Oil Cone 13 OUST SURFACfANT 2 SC 156 LB NA JANUARY L 2 PT/A 75 DG 046 LB NA JANUARY 25%VN 100 a 25 fgh 62 abe 100 a 60 abe 53 b-e 33 bed 75 a 97 a o~ 90 ab 27 ef 63 ab 100 a 82 ab 77 a-e (DOTLAM97) University of GA Coop Ext Serviee AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval TJDPE VlCSA ERICA SONOL GNAZZ AMBEL CYNDA CYNDA CONTROL CONTROL GREENUP CONTROL CONTROL CONTROL CONTROL GREENUP 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 04-21-97 04-21-97 04-21-97 05-21-97 05-21-97 05-21-97 05-21-97 05-21-97 152 DA-A 152 DA-A 152DA-A 182 DA-A 182DA-A 182 DA-A 182DA-A 182 DA-A Trt Treatment Form Fm Rate Grow No. Name Amt Ds Rate Unit Stg 14 OUST 75 DG 074 LB AlA JANUARY 55 def 100 a 43 efg 100 a oe 37 e-f 100 a 65 fg SURFACTANT 25%VN 15 NO HERBICIDE JANUARY Oh Od 65 a Od Oe Of oe 80 abc 16 PLATEAU Crop Oil Cone 2 SC 094 LB AlA FEBRUARY 98 ab 13 d 65 a L 2 PT/A 25 bed 62 abe 85 abc 83 a 83 a 17 PLATEAU Crop Oil Cone 18 OUST SURFACTANT 2 SC 156 LB AlA FEBRUARY L 2 PT/A 75 DG 046 LB AlA FEBRUARY 25%VN 90 a-d 35 e-h 57 be 100 a 62 ab 42 fg 60 ab 100 a 68 ab oe 78 a-d 47 b-f 98 a 100 a 82 ab 75 b-e 19 OUST SURFACTANT 20 NO HERBICIDE 75 DG 074 LB AlA FEBRUARY 25%VN FEBRUARY 77 a-d oh 83 ab Od 37 gh 65 a 100 a Od 13 de Oe 38 e-f Of 100 a oe 65 fg 82 ab 21 PLATEAU Crop Oil Cone 2 SC 094 LB AIA MARCH L 2 PT/A 97 ab 88 ab 37 gh 75 a 77 a 72 a-e 100 a 72 def 22 PLATEAU Crop Oil Cone 2 SC 156 LB AlA MARCH L 2 PT/A 92 abc 95 ab 28 h 90 a 78 a 97 a 100 a 62 g 23 OUST 75 DG 046 LB AIA MARCH 63 b-e 98 a 50 e-f 100 a Oe 60 a-e 100 a 65 fg SURFACTANT 25%VN 24 OUST SURFACTANT 25 NO HERBICIDE I.L..S.._D....;.(P_=_.05..;..) 75 DG 074 LB AlA MARCH 68 a-e 100 a 37 gh 100 a 23 b-e 47 b-f 100 a 48 h 25 %VN MARCH Oh Od 63 ab Od oe Of Oe 80 abc -...J.---30-7..1....._ _35_.8..1..._ _9..6..1.._ _37_.61L..._ _39_.81_ _41_.3.1....._ _43_.7..1..._ _6_.81 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) WEED BUG OBSERVATIONS - 1997 PERCENT INJURY OR CONTROL NEW HOPE ROAD FESCUE 7/08/97 8/11/97 3S DAA' 65DAA 85 100 BERMUDA 7/08/97 8/11/97 35DAA 65DAA 30 10 PRICKLY LETTUCE 7/08/97 8/11/97 35DAA 65DAA --b -- PANICUM 7/08/97 8/11/97 35DAA 65DAA 60 100 HEMP DOG BANE 7/08/97 8/11/97 35DAA 65DAA FLORIDA PASPALUM 7/08/97 8/11/97 35DAA 65DAA KNOT ROOT FOXTAIL 7/08/97 8/11/97 35DAA 65DAA -- -- 80 90 95 100 WEEPING LOVE GRASS 7/08/97 8/11/97 35DAA 65DAA 100 100 MARTIN 85 100 30 10 100 95 -- -- -- -- -- -- 100 95 -- -- I I DAIRY RD. REAR MARTIN 80 90 50 10 90 95 -- -- -- -- -- -- 100 95 -- -- DAIRY RD. FRONT HEMP 95 90 80 75 -- -- -- -- 90 95 -- -- -- -- -- --- DOG BANE SITE a--DAA = Days after application. b__ indicates that weed species was not present on site. Evaluation of Plateau and Roundup Pro for Summer Weed Control on Highway 82. Spray Record Location: Highway 82, Worth County, GA Replications: 1 I. Crop and Weed Data Crop: Common Bermudagrass Growth Stage: Established, active-growth, 8 to 10 inches tall. seedheads present Weeds: Knotroot foxtail- seedheads present Southern crabgrass - 6 to 8 inches tall Hairy fleabane - 6 to 16 inches tall, to flowering Bahiagrass - 6 to 8 inches tall, some seedheads present II. Treatment Data Application Date: June 19, 1997 Nozzle Tip: BoomBuster 375-R, 20 ft. Spray width Spray Pressure: 40 psi Speed: 13 to 14 mph Spray volume: 30 gpa Plot Size: approximately 2.3 miles in length and 20 ft. in width ill. Environmental Conditions Air Temperature: 80 F. Soil Temperature: 77 F. at 2 inch depth Soil Moisture: Good Sun: Cloudy '. ~ ... ~Y~!J~OOIQN!o ~.!:.~:.:'~D.!:~. :~.:';.~ ~::.:.::..~:P.n'.~.:f,:,.:~.i.~:.~.~EN .: .:Im.:!~."':.;,i. :8."~'.:1.~ :.~'. :.i.~ .j(J.~l. i r~j:t?t~?:;;;;:{(\\f}\( .\:~~\ ..;;.,.. :::T:':::~D .~:V1:~:::.I..::.' V1~:. : I1:::-.:D~.'\:I::: ,~:.,:.~,;:~.'~:.~:.,:;.~,:.~ :~,.:~.~,.;:;.!:~,:~ :.~,:.i,~.i:.~,,:.!,:!.: ~.i:. :;~.::i.~,;:~jitf(i/t~;r;~;~h::: E..:, n. '.B.I..'...:".i.l.r'1'E..'..: . .'.'..;.. ..:.:.:.E..:..: R..: : . . .i..T:!:.;... .. VLI i.. l ..... i..:..'.:. .:.:.; ..o.:....;I...: ..;.. M_ ,.,',.',.,' ;.'.:.,..:,:.:.' ,:.;.:.:. i .. ..i.;.,. .i..: : ,i:. :::.I.i.. .:..:.:.:.:.:,..:,.;.:.:... .. .. . ' :/}c;: ::::. u.:.:;:;:;:~I !I!I;i~;i!~.: :.~.: ,.:.~.: :~:': :ilil:i l: : l l.i ijil.' r..':...) :!j:'::'.:::i. , ,,..:.:U'.i. .<.. :'..,'".,.:",.'.':.'...:.':;..:..:.'5::::,: . ",.,:.,".".,: ,:'/:.""."",/"".:.""",.,":"."""',',."".".",>,::"",:",:,,,,:,,,,"".",."".::", .:.:.:.:.:.'.:.:.:.:.'.'.:'.,.:.:.:.:..:.':. ."""",:'::'::,",",:'::.,.,..":,.,.,,?., :::::,,::,:::::::::.:,:.'.:.,.i.','..:..,.,:.:..:..:.:.:.:.:,.::.:.:,.".,:::,::,:.:: .':."'.:'.:.':.':.':.:."."'.:.':"":":':.' :.".':.':.':".",."'..'.". Treatment Rate productJac Bennudagrass. Crabgrass Knotroot Hairy foxtail fleabane Daisy fleabane Bahia grass Roundup + 4.0+ Plateau 4.0 oz. Injury Foliage Seedhead Control Suppressn Suppressn 15 15 0 100 Control 80 Suppressn 50 Suppressn 0 Seedhead Suppressn Roundup + 6.0 + 30 40 0 Plateau 6.0 oz. Roundup + 8.0 + 30 30 0 Plateau 4.0 oz. 80 70 65 100 80 70 Roundup 8.0 oz. 20 10 0 50 70 MSMA 3. Opts. 0 0 0 10 50 oo o a indicates that weed was not present at evaluation site ....E...v..j.\jjmfb.....N.....:.. I. .<'..>.::..,.E ::.. .0 :~(),.: :. i.:i.~l.:'Z ,.JJ :.:N D.:,..:....W ..,.., . \j ~: ,.o f. ...R. , ~fii. iii~ ~~; :.:~ I. ,... ..,..i.,m .i..,..p.,.:.,...:.,.,: .,:..m .,, .,E.,.,..:,..,..:.1i. ,4:.,,,:.:.9:]:::..::.,.:,.i::..:.::::..::.. .,::.:. .IJ.::N:'.:,,.,:','.:.:.. O,.,. :.,. .',..:. i.:. i: . ...,.,,.: ,R:,.:.::N ...D.:.:.:.:.::,.,i,,.,..R.:.:..."...,,,:.:.(.,)O ,:.:.:,.' :.i..:::..:U :.:,::.N D , . i ::U ..:.:.i,,.........:..B.'..,.:::...:.:..:.:..,.. ll.:8::.:.,.,. .i..:.:." .... i.:,.:,.:..:.,...,.:..:..... i:.',.O. . . . . . '. >.>... . lygii.$(11;~fl97?5aJ)A.fl.>< ,.i,.,I.,. ....' '.. . .i. ) > <................. i.. ?' :............> <. i.::.i.>..............H./.. i .i........>.i.... :...........................,......:..........'..:.:.............................'.,.'.......'..............,....,.,...,., :.: ,.:....:.:....:.':...:..:.:.:.:....:........... Treatment Rate product/ac Bennudagrass Crabgrass Knotroot Hairy foxtail fleabane Daisy fleabane Bahia grass Roundup + 4.0 + Plateau 4.0 oz. Injury Foliage Seedhead Control Suppressn Suppressn 0 0 0 60 Control 90 Suppressn Suppressn o 0 Seedhead Suppressn Roundup + 6.0 + 0 20 0 60 20 Plateau 6.0 oz. Roundup + 8.0 + 0 20 0 Plateau 4.0 oz. Roundup 8.0 oz. 0 0 0 MSMA b 3.0 pts. 0 0 0 80 95 30 100 25 90 20 40 92 o o o indicates that weed was not present at evaluation site. b MSMA reapplied on July 25 by GDOT personnel. '..,11 Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R Murphy Extension Weed Scientist, UGA Pike County, GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME 1 ALLVI, Wild Garlic 2 GERCA, Carolina Geraniwn 3 PLALA, Buckhorn Plantain 4 LACCA, Tall Lettuce 5 TJDPE, Common Venus Lookingglass 6 TRFCA, Large Hop Clover 7 ERICA,. Horseweed 8 PHYCA, Carolina False Dandelion CROPS BAYER CODE, COMMONNAME 1 CYNDA, Bermudagrass, Common, Established 2 FESAR, Fescue Tall, KY 31, Established PLOT WIDTH x LENGTH 6.5 ft x 60 ft STUDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 WEATHER STATION Griffin, GA; 6 miles APPLICATION DATE TIME OF DAY METHOD TIMING AIR TEMP.,F WIND VELOCITY, MPH . APPLICATION INFORMATION A 2-11-97 9:30 am Broadcast Post 40 6 DEW PRESENCE, YESINO SOIL TEMP.,F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPUCATION INFORMATION No 38 Wet 0 Backpack 30 Flat fan, 8004, 20 inch Spacing 6.5 foot Length 3 Water 25 CO2 CROP STAGE AT EACH APPUCATION APPUCATION A CROP 1; CYNDA, Bermudagrass Donnant 100% CROP 2; FESAR, Tall Fescue Clump, 12 inch Height WEED STAGE AT EACH APPUCATION APPUCATION A WEED 1; ALL VI, Wild Garlic 10 inch Height WEED 2; GERCA, Carolina Geranium 4 inch Diameter WEED 3; PlAIA, Buckhorn Plantain 4 inch Diameter , ..... r.- (WINTER2) University of GA Coop Ext Service EVALUATION OF PLATEAU TANK-MIXES ON BERMUDAGRASS ROADSIDES. AOV Means Table Trial ID: WINTER2 Location: PIKE COUNTY Investigator: TIM MURPHY Study Dir.: Tim R Murphy Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ALLYl GERCA PLALA ALLYl GERCA LACCA GERCA TroPE CYNDA CONTROL CONTROL CONTROL CONTROL CONTROL GREENUP CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 02-27-97 02-27-97 02-27-97 03-27-97 03-27-97 03-27-97 03-27-97 04-22-97 04-22-97 16DA-A 16DA-A 16DA-A 44DA-A 44DA-A 44 DA-A 44DA-A 70DA-A 70DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 01 ROUNDUP PRO 4 SL 0.25 LB AlA POST 37 a 63 ab 22 b 70 ab 87 b 47 ab 100 a 100 a 97 a OUST 75 DF 0.012 LB AlA POST TELAR 75 DF 0.012 LB AlA POST 02 ROUNDUP PRO PLATEAU GARLON3A 4 SL 0.25 LB AlA POST 37 a 2 SL 0.032 LB AlA POST 3 SC 0.25 LB AlA POST 65 ab 20 b 67 ab 100 a 55 a 99 a 95 a 98 a .. 03 ROUNDUP PRO 4 SL 0.25 LB AlA POST 40 a 57 ab 20 b 72a PLATEAU 2 SL 0.063 LB AlA POST GARLON3A 3 SC 0.25 LB AlA POST 95 ab 52 ab 99 a 99 a 100 a 04 ROUNDUP PRO 4 SL 0.25 LB AlA POST 33 a 70 ab 20 b 53 b PLATEAU 2 SL 0.032 LB AlA POST GARLON3A 3 SC 0.5 LB AlA POST 98 a 40 b 97 a 98 a 95 a 05 ROUNDUP PRO 4 SL 0.25 LB AlA POST 37 a 65 ab 18 b 67 ab 100 a 52 ab 100 a 97 a 95 a PLATEAU 2 SL 0.063 LB AlA POST GARLON3A 3 SC 0.5 LB AlA POST 6 ROUNDUP PRO PLATEAU TRANSLINE 3A 4 SL 0.25 LB AlA POST 33 a 2 SL 0.032 LB AlA POST 3 SC 0.045 LB AlA POST 57 ab 28 ab 57 ab 97 ab 50 ab 100 a 98 a 100 a 7 ROUNDUP PRO 4 SL 0.25 LB AlA POST 40 a 75 a 37 a 63 ab 97 ab 53 a 100 a 98 a 100 a PLATEAU 2 SL 0.063 LB AlA POST , TRANSLINE 3A 3 SC 0.045 LB AlA POST (WINTER2) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ALLYl GERCA PLALA ALLYl GERCA LACCA GERCA TroPE CYNDA CONTROL CONTROL CONTROL CONTROL CONTROL GREENUP CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 02-27-97 02-27-97 02-27-97 03-27-97 03-27-97 03-27-97 03-27-97 04-22-97 04-22-97 16 DA-A 16 DA-A 16 DA-A 44DA-A 44DA-A 44 DA-A 44 DA-A 70DA-A 70DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 8 ROUNDUP PRO 4 SL 0.25 LB AlA POST 27 a 55 b 40 a 53 b PLATEAU 2 SL 0.032 LB AlA POST TRANSLINE 3A 3 SC 0.09 LB AlA POST 92 ab 52 ab 100 a 100 a 100 a 9 ROUNDUP PRO PLATEAU TRANSLINE 3A 4 SL 0.25 LB AIA POST 40 a 2 SL 0.063 LB AlA POST 3 SC 0.09 LB AlA POST 67 ab 32 ab 73 a 100 a 47 ab 100 a 100 a 100 a 10 UNTREATED II.-LS_D...;.(P=_-._05..;..) Ob Oc Oc oc Oc 58 a Ob Ob Ob 12_.5"'-1_ _1_7.1...1-1_ _1_3.--161_ _15_.41_ _9_.1..1...._ _1_1.4...1.._ _3_.2.1-1_ _5..1.1.._ _5_.21 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) j ... ~ . (WINTER2) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval TRFCA ERICA PYHCA LACCA ERICA PHYCA FESAR CYNDA FESAR CONTROL CONTROL CONTROL INJURY GREENUP CONTROL CONTROL CONTROL INJURY 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 04-22-97 04-22-97 04-22-97 04-22-97 04-22-97 05-21-97 05-21-97 05-21-97 05-21-97 70DA-A 70 DA-A 70DA-A 70 DA-A 70DA-A 99 DA-A 99 DA-A 99DA-A 99DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 01 ROUNDUP PRO OUST TELAR 4 SL 0.25 LB AlA POST 100 a 75 DF 0.012 LB AlA POST 75 DF 0.012 LB AlA POST 100 a 97 a 15 b 65 a 100 a 100 a 97 a Oa 02 ROUNDUP PRO PLATEAU GARLON3A 4 SL 0.25 LB AlA POST 83 a 2 SL 0.032 LB AlA POST 3 SC 0.25 LB AlA POST 90 ab 66 b 15 b 67 a 80 ab 73 d 60 b Oa 03 ROUNDUP PRO 4 SL 0.25 LB AlA POST 96 a 93 a 58 b 28 a 65 a PLATEAlJ 2 SL 0.063 LB AlA POST GARLON3A 3 SC 0.25 LB AlA POST 88 ab 82 cd 52 b Oa 04 ROUNDUP PRO 4 SL 0.25 LB AlA POST 91 a 98 a 53 b 23 ab 65 a PLATEAU 2 SL 0.032 LB AlA POST GARLON3A 3 SC 0.5 LB AlA POST 82 ab 90 be 53 b Oa 05 ROUNDUP PRO 4 SL 0.25 LB AlA POST 87 a 80 b 23 c 23 ab 65 a PLATEAU 2 SL 0.063 LB AlA POST GARLON3A 3 SC 0.5 LB AlA POST 85 ab 75 d 17 c Oa 6 ROUNDUP PRO PLATEAU TRANSLINE 3A 4 SL 0.25 LB AlA POST 99 a 2 SL 0.032 LB AIA POST 3 SC 0.045 LB AlA POST 100 a 100 a 23 ab 67 a 77b 90 be 100 a Oa 7 ROUNDUP PRO 4 SL 0.25 LB AlA POST 100 a 99 a 97 a 15 b 67 a PLATEAU 2 SL 0.063 LB AlA POST TRANSLINE 3A 3 SC 0.045 LB AlA POST 93 ab 90 be 98 a Oa 8 ROUNDUP PRO PLATEAU TRANSLINE 3A 4 SL 0.25 LB AlA POST 100 a 2 SL 0.032 LB AlA POST 3 SC 0.09 LB AlA POST 100 a 99 a 30 a 67 a 90 ab 95 ab 99 a Oa (WINTER2) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval IntelVal TRFCA ERICA PYHCA LACCA ERICA PHYCA FESAR CYNDA FESAR CONTROL CONTROL CONTROL INJURY GREENUP CONTROL CONTROL CONTROL INJURY 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 04-22-97 04-22-97 04-22-97 04-22-97 04-22-97 05-21-97 05-21-97 05-21-97 05-21-97 70DA-A 70 DA-A 70DA-A 70 DA-A 70DA-A 99DA-A 99DA-A 99DA-A 99DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 9 ROUNDUP PRO PLATEAU TRANSLINE 3A 10 UNTREATED 4 SL 0.25 LB N A POST 98 a 2 SL 0.063 LB NA POST 3 SC 0.09 LB NA POST Ob 100 a oc 100 a oc 32 a 67 a Oc 65 a 85 ab 92 ab 100 a Oa oc oe Oc Oa 1L-~S_D....;,(P=_-_.0...;.5) -I-_..:.:16:.:..;.4~I_--.:1:..::.;0':.:J0I_--=.:29:..:..:.6~1---.:1:..::.:.:.0_ .81 _3_.21_ _19_.41_ _8_.9..1...._ _2_9..3..1..._ _0---01.1 Means followed by samc lcttcr do not significantly differ (P=.05, Duncan's New MRT) ',' ,. '.,/' (WINTER2) University of GA Coop Ext Service Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval CYNDA GREENUP 0-100 05-21-97 99 DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 01 ROUNDUP PRO OUST TELAR 4 SL 0.25 LB AlA POST 80 a 75 OF 0.012 LB AlA POST 75 DF 0.012 LB AlA POST 02 ROUNDUP PRO PLATEAU GARLON3A 4 SL 0.25 LB AlA POST 80 a 2 SL 0.032 LB AlA POST 3 SC 0.25 LB AlA POST 03 ROUNDUP PRO PLATEAU GARLON3A 4 SL 0.25 LB AlA POST 80 a 2 SL 0.063 LB AlA POST 3 SC 0.25 LB AlA POST 04 ROUNDUP PRO PLATEAU GARLON3A 4 SL 0.25 LB AlA POST 80 a 2 SL 0.032 LB AlA POST 3 SC 0.5 LB AlA POST 05 ROUNDUP PRO PLATEAU GARLON3A 4 SL 0.25 LB AlA POST 80 a 2 SL 0.063 LB AlA POST 3 SC 0.5 LB AlA POST 6 ROUNDUP PRO PLATEAU TRANSLINE 3A 4 SL 0.25 LB AlA POST 80 a 2 SL 0.032 LB AlA POST 3 SC 0.045 LB AlA POST 7 ROUNDUP PRO PLATEAU TRANSLINE 3A 4 SL 0.25 LB AlA POST 80 a 2 SL 0.063 LB AlA POST 3 SC 0.045 LB AlA POST 8 ROUNDUP PRO PLATEAU TRANSLINE 3A 4 SL 0.25 LB AIA POST 80 a 2 SL 0.032 LB AlA POST 3 SC 0.09 LB AlA POST AOV Means Table (WINTER2) University of GA Coop Ext Service Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval CYNDA GREENUP 0-100 05-21-97 99DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 9 ROUNDUP PRO PLATEAU TRANSLINE 3A 4 SL 0.25 LB AlA POST 80 a 2 SL 0.063 LB AlA POST 3 SC 0.09 LB AlA POST 10 UNTREATED ILSD (p=.05) 80 a 0.01 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) AOV Means Table / ;> ._/ ;. i. :..,a\I_. ~)',i;:'~I!!I:i:li B~tt.:.:.'J.'~.:.~E.:.~.;.;.:.I~.; ~.'.'.~.~:.:.k:.;~..i..li.~'.: .;.. R....'. i. \ ..:.;.:.lRM.'.'.'.;E.'.:.;.::.;.I. .:.. ..:.. . i..I'J.:..'.:..,:.s I.I.1.1.1.1.1.1.1 ........... ' ;.;.:.:.:-: :.:-:.:.:.;.:-:.:.:-:.;.:.:-:.:.:.:.:.:.:.;. ;.: :.:.:.;.; . Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist, UGA Worth County, GA WEEDS 1 2 3 4 CROPS I PLOT WIDTH x LENGTH SITE TYPE STUDY DESIGN REPLICATIONS INlTIATION COMMENTS - CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME LOLMU, Italian Ryegrass ERIBO, Hairy Fleabane TRFCA, Large Hop Clover SONAS, Spiny Sowthistle BAYER CODE, COMMONNAME CYNDA, Bennudagrass, Common, Established IOftx33ft Grass Roadside Randomized Complete Block Design (RECD) 3 Plots near mile marker 19, West. Sprayed 5 ft. centers on stake. Stakes 10ft. apart. APPLICATION DATE TIME OF DAY METHOD TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH DEW PRESENCE, YESINO APPLICATION INFORMATION A 3-24-98 2:00pm Broadcast Post Foliar 74 6 No SOIL TEMP., F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE: TYPE BOOM LENGTH, FT GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT 62 Good 40 Backpack 22 Flat fan, 11004, 19 inch Spacing 5 foot Length, 18 inch Height 3 Water 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; CYNDA, Bermudagrass 10% Greenup WEED STAGE AT EACH APPLICATION APPLICATION A Weed 1; LOLMU, ltalimr Ryegrass 8 inch Height, 60% Density Weed 2; ERlBO, Hairy Fleabane 2 3 inch Diameter, 30% Density Weed 3; TRFCA, Large Hop Clover 6 - 7 inch ?, 20% Density Weed 4; SONAS, Spiny SowthistLe 5 inch?, 5% Density (ROAD3-98) University of GA Coop Ext Service Hairy Fleabane (ERIBO) Control in Roadside Bermudagrass (CYNDA) . AOV Means Table Trial 10: Road3-98 Location: Worth County Investigator: Tim R. Murphy Study Dir.: Tim R Murphy Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval LOLMU SONAS TRFCA LOLMU LOLMU SONAS TRFCA CYNDA CYNDA INJURY CONTROL CONTROL CONTROL SUPPRESS INJURY CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 04-14-98 04-14-98 04-14-98 04-14-98 04-14-98 05-04-98 05-04-98 05-04-98 05-04-98 21DAAA 2IDAAA 21DAAA 2IDAAA 21DAAA 4IDAAA 4IDAAA 4IDAAA 41DAAA Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 1 Roundup Pro 4.0 SL 0.25 LB AlA EP 9a 64 ab 46 cde 56 d 93 a Oa 57 ab 86 abe 80.0 cd 2 Roundup Pro Oust 4.0 SL 0.25 LB AlA EP 9a 75 WG 0.188 OZ AlA EP 66 ab 61 a-e 96 a 93 a Oa 62 a 96 ab 85.0 a-d 3 Roundup Pro 4.0 SL 0.25 LB AlA EP 4 abe 49 ab 61 a-e 81 abe 92 a Oa 47 abe 96 ab 100.0 a u Telar 75 WG 0.188 OZ AlA EP .C..!. 4 Roundup Pro 4.0 SL 0.25 LB AlA EP 4 abe 69 a 81 a 96 a 95 a 5a 67 a 93 ab 100.0 a Oust 75 WG 0.188 OZ AlA EP Telar 75 WG 0.188 OZ AlA EP 5 Transline 3.0 SL 0.094 LB AlA EP 2be 4c 66 a-d 98 a 5d oa 2 ef 88 ab 100.0 a 6 Roundup Pro 4.0 SL 0.25 LB AlA EP 5 abe 50 ab 70 ab 98 a 92a oa 47 abe 100 a 100.0 a Transline 3.0 SL 0.094 LB AlA EP 7 Oust 75 WG 0.188 OZ AlA EP 2be 7c 50 b-e 88 abc 20 c oa of 90 ab 98.3 ab Transline 3.0 SL 0.094 LB AlA EP 8 Telar 75 WG 0.188 OZ AlA EP o c l3c 52 b-e 98 a 10 cd oa Of 93 ab 96.7 abc Transline 3.0 SL 0.094 LB AlA EP 9 Oust 75 WG 0.188 OZ AlA EP Oc 17 c 40 e 100 a Od oa 7 ef 83 be 100.0 a Telar 75 WG 0.188 OZ AlA EP Transline 3.0 SL 0.094 LB AlA EP 10 Roundup Pro Oust Transline 4.0 SL 0.25 LB AlA EP 7 ab 75 WG 0.188 OZ AlA EP 3.0 SL 0.094 LB AlA EP 52 ab 53 b-e 92 ab 90 a 5, a 52 abe 90 ab 100.0 a (ROAD3-98) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval LOLMU SONAS TRFCA LOLMU LOLMU SONAS TRFCA CYNDA CYNDA INJURY CONTROL CONTROL CONTROL SUPPRESS INJURY CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 04-14-98 04-14-98 04-14-98 04-14-98 0414-98 05-0498 05-04-98 05-04-98 05-04-98 21DAAA 21DAAA 21DAAA 21DAAA 21DAAA 41DAAA 41DAAA 41DAAA 41DAAA Trt Treatment No. Name Form Fro Rate Grow Amt Os Rate Unit Stg 11 Roundup Pro 4.0 SL 0.25 LB NA EP 7 ab 60 ab 67 abe 100 a 92a Telar 75 WG 0.188 OZ NA EP .Transline 3.0 SL 0.094 LB NA EP 3a 60 ab 95 ab 100.0 a 12 Roundup Pro 4.0 SL 0.25 LB NA EP 3 abe 50 ab 43 de 87 abe 88 ab Oa 23 de 73 e 70.0 d Sencor 75 WG 0.25 LB NA EP 13 Roundup Pro 4.0 SL 0.25 LBNA EP 5 abe 45 b 40 e 100 a 83 ab Oa 38 bed 85 be 81.7 bed Sencor 75 WG 0.5 LB NA EP 14 Roundup Pro 4.0 SL 0.25 LB NA EP o c 55 ab 47 cde 70 bed 83 ab Oa 30 cd Karmex 80 WG 1.0 LB NA EP 83 be 76.7 d 15 Roundup Pro Karmex 4.0 SL 0.25 LBNA EP 3 abe 50 ab 80 WG 2.0 LBNA EP 53 b-e 65 cd 75 b Oa 30 cd 87 abe 81.7 bed 16 Untreated Check oc oc Of oe Od Oa Of Od 0.0 e I~LS_D__(P=_-_.0_5)_ ~---..:.5.:....5J...1_.:...1.;;.;9'.:J.ll_--.:.:.19.:.:..9.1...1_-=2=.:.:..2.31_ _12_.71_ _5.3-'0.1_ _2_0_.91'---_12_.1-'0.1_ _15_.6..2.1 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (ROAD3-98) Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval Trt Treatment No. Name 1 Roundup Pro 2 Roundup Pro Oust 3 Roundup Pro Telar 4 Roundup Pro Oust Telar 5 TransUne 6 Roundup Pro TransUne 7 Oust TransUne 8 Telar TransUne 9 Oust Telar Transline 10 Roundup Pro Oust Transline II Roundup Pro Telar Transline 12 Roundup Pro Sencor University of GA Coop Ext Service AOV Means Table ERmO LOLMU ERmO ERmO ERmO ERmO CYNDA CYNDA CYNDA CONTROL SUPPRESS INJURY CONTROL INJURY CONTROL INJURY CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 05-04-98 05-04-98 05-25-98 05-25-98 06-10-98 06-10-98 06-29-98 06-29-98 08-12-98 4lDAAA 4lDAAA 62DAAA 62DAAA 78DAAA 78DAAA 97DAAA 97DAAA 14lDAAA Form Fm Rate Grow Amt Ds Rate Unit Stg 4.0 SL 0.25 LB AlA EP 96.7 ab Oa 4.0 SL 0.25 LB AlA EP 96.7 ab Oa 75 WG 0.188 OZ AlA EP 4.0 SL 0.25 LB AlA EP 96.7 ab Oa 75 WG 0.188 OZ AlA EP 4.0 SL 0.25 LB AlA EP 75 WG 0.188 OZ AlA EP 75 WG 0.188 OZ AlA EP 91.7 ab Oa 3.0 SL 0.094 LB AlA EP 96.7 ab Oa oa 96 a oa 97 a oa 94 a 98 ab Oa 96 a oa 95 a oa 95 a 97 ab Oa 96 a oa 87 ab o a 89 a 90 abc oa 96 a oa 95 a oa 91 a 91 ab Oa 97 a oa 95 a Oa 96 a 99 ab 4.0 SL 0.25 LB AlA EP 100.0 a Oa 3.0 SL 0.094 LB AlA EP 75 WG 0.188 OZ AlA EP 100.0 a o a 3.0 SL 0.094 LB AlA EP 75 WG 0.188 OZ AlA EP 100.0 a Oa 3.0 SL 0.094 LB AlA EP 75 WG 0.188 OZ AlA EP 100.0 a o a 75 WG 0.188 OZ AlA EP 3.0 SL 0.094 LB AlA EP 4.0 SL 0.25 LB AlA EP 100.0 a Oa 75 WG 0.188 OZ AlA EP .3.0 SL 0.094 LB AlA EP 4.0 SL 0.25 LB AlA EP 100.0 a o a 75 WG 0.188 OZ AlA EP 3.0 SL 0.094 LB AlA EP Oa 100 a Oa 97 a Oa 98 a 99 ab Oa 98 a oa 95 a Oa 93 a 97 ab Oa 98 a Oa 97 a oa 98 a 98 ab oa 100 a Oa 100 a oa 100 a 100 a oa 99 a oa 100 a oa 100 a 100 a Oa 99 a Oa 100 a Oa 100 a 100 a , 4.0 SL 0.25 LB AlA EP 71.7 abc Oa 75 WG 0.25 LB AlA EP Oa 77b Oa 52 c Oa 37 c 53 d (ROAD3-98) University of GA Coop Ext Service AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ERIBO LOLMU ERIBO ERlBO ERIBO ERIBO CYNDA CYNDA CYNDA CONTROL SUPPRESS INJURY CONTROL INJURY CONTROL INJURY CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 05-04-98 05-04-98 05-25-98 05-25-98 06-10-98 06-10-98 06-29-98 06-29-98 08-12-98 4IDAAA 4IDAAA 62DAAA 62DAAA 78DAAA 78DAAA 97DAAA 97DAAA 14IDAAA Trt Treatment No. Name 13 Roundup Pro Sencor 14 Roundup Pro Kannex 15 Roundup Pro Kannex Fonn Fm Rate Grow Amt Ds Rate Unit Stg 4.0 SL 0.25 LB AlA EP 66.7 bc o a 75 WG 0.5 LB AlA EP 4.0 SL 0.25 LB AlA EP 55.0 c o a 80 WG 1.0 LB AlA EP 4.0 SL 0.25 LB AlA EP 95.0 ab Oa 80 WG 2.0 LB AlA EP oa 73 b o a 70 bc o a 67 b 77c oa 88 ab o a 62 c o a 55 bc 84 bc Oa 95 a o a 97 a o a 93 a 97 ab 16 Untreated Check 0.0 d Oa Oa oc Oa Od Oa Od Oe I_LS_D...;.(P=_-_.o5..;..) ..1..---=-27~.6.:J31~_0:.:.:.0.J..I_...:.0:.:J.ol _ _16-J.4I_ _0_.01_ _21_.6.1-1_ _0..0..1.._ _19_.61_ _13....J.ll ex: (V r- Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) II:li[ijj~UII '1III:!tl!,l~;i;;;!; Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R Murphy Extension Weed Scientist, UGA Hwy. 82, #19 mile marker, Worth County, GA WEEDS I CROPS I PLOT WIDTH x LENGTH SITE TYPE STUDY DESIGN REPLICATIONS INITIATION COMMENTS CROP AND WEED DESCRIPTION BA YER CODE, COMMONNAME ERIBO, Hairy Fleabane BA YER CODE, COMMONNAME CYNDA, Bermudagrass, Common, Established 5 ft x 40 ft Grass Roadside Randomized Complete Block Design (RECD) 3 10 it Centered plots. 5 it Plot in center of stake. APPLICAnON DATE TIME OF DAY METHOD TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH DEW PRESENCE, YESINO SOIL TEMP.,F SOIL MOISTURE CLCUJD COVER % APPLICATION INFORMATION A 5-29-98 lOam Broadcast Post Foliar 89 0 No 83 Good 0 , ~('\ APPLICATION EQUIPMENT OPERATING PSI NOZZLE: TYPE BOOM LENGTH, FT GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT A Backpack 24 Flatfan, 11004,20 inch Spacing 5 foot Length. 19 inch Height 3 Water 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; CYNDA, Bermudagrass 100% Greenup, 5 - 7 inch Height WEED STAGE AT EACH APPLICATION APPLICATION A Weed 1; ERIBO, Hairy Fleabane 5 - 7 inch Height TREATMENT APPLICATION COMMENTS Plot #101 begins at 3835 Hwy. 82. (ROAD5-98) University of GA Coop Ext Service Summer Herbicide Programs for Hairy Fleabane (ERIBO) Control Trial 10: Road5-98 Investigator: Tim Murphy Location: Worth Co. - Hwy 82 Study Dir.: Tim R Murphy Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ERIBO ERIBO ERIBO CYNDA CYNDA INJURY CONTROL INJURY CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 06-10-98 06-10-98 06-29-98 06-29-98 08-12-98 12DAAA 12DAAA 31DAAA 3IDAAA 75DAAA Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 1 MSMA 6 SC 2.5 LBNA Nonionic surfactant SL 0.25 %VN 3.3 abc 36.7 e 0.0 a 16.7 c 0.0 e 2 Garlon 3A 3 SC 0.375 LB NA Nonionic surfactant SL 0.25 %VN 3.3 abe 78.3 ab 0.0 a 86.7 a 88.3 a 3 Garlon 3A 3 SC 0.5 LB NA Nonionic surfactant SL 0.25 %VN 5.0 abc 83.3 a 0.0 a 90.0 a 88.3 a 4 Transline 3 SL 0.047 LB NA Nonionic surfactant SL 0.25 %VN 0.0 c 41.7 cde 0.0 a 76.7 ab 81.7 ab 5 Transline 3 SL 0.094 LB NA Nonionic surfactant SL 0.25 %VN 0.0 c 58.3 a-e 0.0 a 78.3 ab 83.3 ab 6 Escort 60 DF 0.01 LBNA Nonionic surfactant SL 0.25 %VN 0.0 c 43.3 cde 0.0 a 78.3 ab 71.7 abe 7 Escort 60 DF 0.02 LBNA Nonionic surfactant SL 0.25 %VN 0.0 c 48.3 cde 0.0 a 85.0 a 75.0 abc 8 Roundup Pro 4 SL 0.25 LBNA 5.0 abe 38.3 de 0.0 a 60.0 b 46.7 d 9MSMA Garlon 3A Nonionic surfactant 6 SC 2.5 LBNA 3 SC 0.375 LB NA SL 0.25 %VN 1.7 be 66.7 a-d 0.0 a 73.3 ab 70.0 abe 10 MSMA Garlon 3A Nonionic surfactant 6 SC 2.5 LBNA 3 SC 0.5 LBNA SL 0.25 %VN 6.7 ab 66.7 a-d 0.0 a 85.0 a 88.3 a AOV Means Table ,, (ROAD5-98) University of GA Coop Ext Service Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval ERIBO ERIBO ERIBO CYNDA CYNDA INJURY CONTROL INJURY CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 06-10-98 06-10-98 06-29-98 06-29-98 08-12-98 12DAAA 12DAAA 3IDAAA 3IDAAA 75DAAA Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 11 MSMA Transline . Nonionic surfactant 6 SC 2.5 LB AlA 3 SL 0.047 LB AlA SL 0.25 % V/V 1.7 bc 53.3 b-e 0.0 a 78.3 ab 76.7 ab 12 MSMA TransUne Nonionic surfactant 6 SC 2.5 LB AlA 3 SL 0.094 LB AlA SL 0.25 %V/v 3.3 abe 50.0 b-e 0.0 a 83.3 a 83.3 ab 13 MSMA Escort Nonionic surfactant 6 SC 2.5 LB AlA 60 OF 0.01 LB AlA SL 0.25 % V/V 3.3 abe 50.0 b-e 0.0 a 73.3 ab 66.7 be 14 MSMA Escort Nonionic surfactant 6 SC 2.5 LB AlA 60 DF 0.02 LB AlA SL 0.25 % V/V 1.7 be 56.7 a-e 0.0 a 68.3 ab 56.7 cd 15 Roundup Pro Garlon 3A Nonionic surfactant 4 SL 0.25 LB AlA 3 SC 0.375 LB AlA SL 0.25 %V/v 5.0 abe 78.3 ab 0.0 a 86.7 a 88.3 a 16 Roundup Pro Garlon 3A Nonionic surfactant 4 SL 0.25 LB AlA 3 SC 0.5 LB AlA SL 0.25 %V/v 6.7 ab 68.3 abe 0.0 a 88.3 a 88.3 a 17 Roundup Pro Transline Nonionic surfactant 4 SL 0.25 LB AlA 3 SL 0.047 LB AlA SL 0.25 %V/v 5.0 abc 56.7 a-e 0.0 a 81.7 ab 81.7 ab 18 Roundup Pro Transline Nonionic surfactant 4 SL 0.25 LB AlA 3 SL 0.094 LB AlA SL 0.25 %V/v 8.3 a 53.3 b-e 0.0 a 85.0 a 85.0 ab 19 Untreated Check 0.0 c 0.0 f 0.0 a 0.0 c 0.0 e I..L..S._D_(P=_-_.0--'5) -L-_4_.77...1.._ _2_4._801_ _0_.00-1.1_ _1_8_.79...1.._ _1_7._601 AOV Means Table 'i:;\llIIJlr."_1!"'I!IIi;;~~:, Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist, UGA Hwy. 341, south of Sells Rd; Pike Co., GA WEEDS 1 2 3 4 5 6 7 8 CROPS 1 2 3 PLOT WIDTH x LENGTH SITE TYPE STUDY DESIGN REPLICATIONS INITIATION COMMENTS CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME PLALA, Buckhorn Plantain IPOCC, Scarlet Morning Glory ERICA, Horseweed EPHNU, Nodding Spurge SIDSP, Prickly Sida CVNGS, Tropic Croton HYPGE, Pineweed GALTI, Marsh Bedstraw BAYER CODE, COMMONNAME CYNDA, Bermudagrass, Common, Established FESAR, Tall Fescue PASNO, Bahiagrass 6 ft. X60 ft. DOT Grass Roadside Randomized Complete Block Design (RECD) 3 Plot in center of stake. 10 ft. apart. Test site mowed by DOT 9 days prior to treatment; to a 4 inch height. APPLICATION DA'FE ~ TIME OF DAY METHOD APPLICATION INFORMATION A 5-13-98 12pm Broadcast TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH DEW PRESENCE, YESINO SOIL TEMP., F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE: TYPE GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT Post Foliar 84 3 mph, West No 85 Moist 0 Backpack 22 Flat fan, Tee jet, 8004VS, 18 inch Spacing 3 Water 25 CO2 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; CYNDA, Bermudagrass 100% Greenup, 5 inch Height CROP 2; FESAR, Tall Fescue 5 inch Height CROP 3, PASNO, Bahia 5 inch Height WEED STAGE AT EACH APPLICATION APPLICAnON A Weed 1; PLALA, Buckhorn Plantian 5 inch Height Weed 2; lPOCC, Scarlet Morningglory 5 inch Height TRIAL COMMENTS 7-7 -98: Grass injury ratings not recorded. No injury to Bermuda, Fescue, or Bahiagrass. Except for Plateau at 0.07 kglha which injured the Bermuda approxiamately 10 % and provided 100% seed head suppression ofBahia. Test site was very dry and wilted. Very hard to rate. 8-26-98: No injury was observed to roadside grasses. -c (98I3AOI8) University of GA Coop Ext Service Trial Type: RES Protocol No.: WNK98S01 Project Plan #: Discipline:* HERBICIDE DED#:* I3A Main Chern: DIClOSUlAM, DE-564 Region(s):* U.S./CANADA Country:* UNITED STATES Product Dev. Stage:* DEVELOPMENT Trial Category:* EFFICACY/CROP TOl Site Type: * ROW, ROAD Title: SUlFONAlIDE SCREEN ON EMERGED PERENNIAL WEEDS (NON~CROP, ROW, PASTURE) AOV Means Table Business Unit:* US VEG & CROP MGMT PRM license Holder: Tim R Murphy Evaluation Date Pest Code Crop Code Evaluation Type. Trt-Eval Interval Trt Treatment No Name 1 DE-564 X-77 2 DE-564 X-77 3 DE-564 X-77 4 DE-570 X-77 5 DE-570 X-77 6 DE-570 X-77 7 DE-498 X-77 8 DE-498 X-77 05-26-98 05-26-98 05-26-98 05-26-98 06-11-98 06-11-98 06-11-98 06-11-98 07-07-98 GALTI GALTI ERICA CYNDA FESAR PASNO CYNDA FESAR PASNO INJURY INJURY INJURY CONTROL INJURY INJURY INJURY CONTROL CONTROL 13DAAA 13DAAA 13DAAA 13DAAA 29DAAA 29DAAA 29DAAA 29DAAA 55DAAA Fonn Fm Ra Cone Ds Rate Un Appl Method 84 WG 17 GM AIIHA POST Od 3b SL 0.25 %VN POST 84 WG 35 GM AI/HA POST o d 12 b SL 0.25 %VN POST 5 b 12 cd 8b 13 cd Ob Ob Oe 45 cd 100 a Ob Ob Be 37 cd 100 a 84 WG 70 GM AI/HA POST Od 15 b 12 b 23 cd SL 0.25 %VN POST 50 SC 17 GM AI/HA POST Od Ob Ob Od SL 0.25 %VN POST Ob Ob Oc 48 cd 100 a Ob Ob oe 30 d 100 a 50 SC 35 GM AI/HA POST 7 cd 8b 13 b 7 cd SL 0.25 %VN POST Ob Ob IOc 63 be 100 a 50 SC 70 GM AIlHA POST 3 d Ob 3b 7 cd SL 0.25 %VN POST 80 WG 35 GM AIIHA POST Od Ob 1 b 10 cd SL 0.25 %VN POST 80 WG 70 GM AIIHA POST 2d Ob Ob 30 e SL 0.25 %VN POST Ob Ob Oe 68 be 100 a Ob Ob Be , 53 bed 100 a , Ob Ob oe 58 bed 100 a (98I3AOI8) Evaluation Date Pest Code Crop Code Evaluation Type Trt-Eval Interval AOV Means Table University of GA Coop Ext Service 05-26-98 05-26-98 05-26-98 05-26-98 06-11-98 06-11-98 06-11-98 06-11-98 07-07-98 GALT! GALT! ERICA CYNDA FESAR PASNO CYNDA FESAR PASNO INJURY INJURY INJURY CONTROL INJURY INJURY INJURY CONTROL CONTROL 13DAAA 13DAAA 13DAAA 13DAAA 29DAAA 29DAAA 29DAAA 29DAAA 55DAAA Trt Treatment No Name Ponn Pm Ra Cone Ds Rate Un Appl Method 9 DE-498 X-77 80 WG 140 GM AI/HA POST Od 7b Ob 7 cd SL 0.25 % VN POST 10 FLUROXYPYR 180 EC 140 GM AIIHA POST 3 d 3b Ob 68 b X-77 SL 0.25 % VN POST Ob Ob oc 47 cd 100 a Ob Ob Oc 83 ab 100 a 11 FLUROXYPYR 180 EC 280 GM AIIHA POST 700 Ob X-77 SL 0.25 %VN POST 3 b 97 a 12 FLUROXYPYR 180 EC 560 GM AIlHA POST 13 be 3b X77 SL 0.25 % VN POST Ob 97 a 13 DE-511 X-77 100 SL 35 GM AI/HA POST Od Ob Ob 13 cd SL 0.25 %VN POST 14 DE-511 X-77 100 SL 70 GM AIIHA POST 2d Ob Ob Od SL 0.25 % VN POST 15 DE-511 X-77 100 SL 140 GM AIlHA POST 2d 2b Ob 7 cd SL 0.25 %VN POST 16 DE-565 X-77 84 WG 17 GM AIlHA POST 2d 15 b 12 b 8 cd SL 0.25 % VN POST Ob Ob Oc 98 a 100 a 3b Ob o c 100 a 100 a Ob Ob oc 58 bed 100 a Ob Ob oc 37 cd 100 a 3b Ob oc 38 cd 100 a 2b Ob oc 43 cd 100 a 17 DE-565 X-77 84 WG 35 GM AIlHA POST 2 d Ob Ob 7 cd SL 0.25 % VN POST Ob Ob 2c 57 bed 100 a 18 DE-565 X-77 84 WG 70 GM AIlHA POST 2d SL 0.25 % VN POST Ob 12 b 13 cd 3b Ob 7c 62 bed 100 a 19 PLATEAU 2ASU 240 AL 0.07 KG AIlHA POST 27 a 35 a 67 a 20 cd X-77 SL 0.25 % VN POST 20 a 63 a 87 a 57 bed 33 b 20 MSMA . X-77 720 SC 2.8 KG AEIHA POST 18 b lOb 60 a 67 b SL 0.25 %VN POST 21 UNTREATED od Ob Ob Od Ob Ob 72b 63 be 100 a Ob Ob oc Oe Oc , I,,-LS_D"--~~:AND METOIJACHR-::;:;:;:;:;::: :::.::;=:.;...;.::::::;:;:::;:;:::;:;::::=::;:::; .;:;:;.:.;:;}:;: ;;::;;::::;:: .;:;:;:;:::;:::;:;:;:::;:;:;:;=::::::::=:=;;:{::' Site Description STIJDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist, UGA Georgia Station, Griffin, GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME I CYPES, Yellow Nutsedge 2 DIGSP, Southern Crabgrass CROPS BAYER CODE, COMMON NAME I Wildflowers, Mixed Species, Well Established PLOT WIDTH x LENGTH 5ftx 15ft STIJDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 SOIL INFORMATION Sandy Loam, 4.6 Organic Matter, 74% Sand, 14% Silt, 12% Clay, 5.1 pH APPLICATION DATE TIME OF DAY - METHOD TIMING AIR TEMP.,F SOIL MOISTURE SOIL CONDITION LEAF MOISTURE EQUIPMENT OPERATING PSI NOZZLE INFORMATION SPRAY VOLUME, GPA PROPELLANT APPLICATION INFORMATION A B 3-3-95 5-5-95 9:00am 9:00 am Broadcast Broadcast Pre Pre 50 Wet Nonnal Cloddy NA Dry Dew Backpack 30 Flat fan, 11 004 25 CO2 11"1 APPLICATION MIX SIZE, GAL. APPLICATION INFORMATION A IB 0.53 APPLICATION Cornflower California Poppy Gaillardia Coreopsis Yarrow CROP STAGE AT EACH APPLICATION A B 6 in. Height Flower 3 in. Height Flower 4 in. Height 6 in. Height 3 in. Height 2 in. Height 6 in. Height TRIAL COMMENTS Wildflowers established October, 1993. Test site reseeded in October, 1994. Test site treated with Poast + COC (2.0 pints + 2.0 ptlacre) for control ofItalian Ryegrass and Bromus species. Moderate cover of Henbit and Catchweed Bedstraw on experimental site on March 3,1995. No injury was observed to established wildflower species on 3-31-95, 5-5-95, and 8-15-95 from any herbicide treatment EVALUAnON OF PRODIAMINE AND METOLACHLOR IN ESTABLISHED WILDFLOWERS TRT TREATMENT NO. NAME FORM FORM. RATE GROWTH AMNT DS Ib/ai STAGE DIGSP CONTROL 8-15-95 CYPES CONTROL 8-15-95 1 Prodiamine 65% DF 0.75 Pre-A 93 0 2 Prodiamine 65% DF 0.97 Pre-A 93 0 3 Prodiamine 65% DF 1.5 Pre-A 97 0 4 Prodiamine 65% DF 0.5 Pre-A 92 0 Prodiamine 65% DF 0.5 Pre-B 5 MetolacWor 7.8 SC 2.0 Pre-A 58 60 6 Metolachlor 7.8 SC 4.0 Pre-A 77 80 7 MetolacWor 7.8 SC 2.0 Pre-A 87 78 MetolacWor 7.8 SC 2.0 Pre-B 8 ... Untreated Check 0 0 LSD (0.05) 34 29 . i.::)::;:.2:::"::::::!::::::::!i~I.11~~~:g!WIGmES:::::::::\ :j:I:.:.::::::::I. H::.::?: Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R Murphy Extension Weed Scientist, UGA Georgia Station, Griffin. GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME 1 CYPES, Yellow Nutsedge 2 LAMAM, Henbit 3 DIGSP, Southern Crabgrass 4 OXAST, Yellow Woodsorrell CROPS CODE, COMMONNAME I Wildflowers, Mixed Species, Well Established CORN FLOWER = Cornflower CALIF POPPY =California Poppy GALRDA = Gaillardia TREE MALLOW =Tree Mallow SCARLT FLAX = Scarlet Flax SCARLT SAGE = Scarlet Sage - BLACKEYED SUSAN =Black-eyed Susan YARRW = Yarrow PLOT WIDTH x LENGTH 5ftxl5ft STUDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 SOIL INFORMATION Sandy Loam, 2.2 Organic Matter, 72% Sand, 12% Silt, 16% Clay, 5.1 pH APPLICATION DAlE~ TIME OF DAY METHOD APPLICATION INFORMATION A 3-3-95 9:00am Broadcast B 5-5-95 9:00 am Broadcast TIMING AIR. TEMP., F SOIL MOISTURE SOIL CONDITION LEAF MOISTURE EQUIPMENT OPERATING PSI NOZZLE INFORMATION SPRAY VOLUME, GPA PROPELLANT MIX SIZE, GAL. APPLICATION INFORMATION Pre Pre 50 -- Wet Normal Cloddy NA Dry Dew Backpack 30 Flat fan, 11004 25 CO2 0.53 APPLICAnON Cornflower California Poppy Gaillardia Tree Mallow Scarlet Flax Yarrow CROP STAGE AT EACH APPLICATION A B -- 5 in. Height -- 5 in. Height -- 2 - 6 in. Height -- 6 in. Height -- 8 in. Height -- 3 in. Height TRIAL COMMENTS 3-3-95: Wildflower seed mix seeded at 10.0 ozlIOOO sq. ft. immediately before pre-emergence herbicide application into freshly tilled soil. Test area mulched with wheat straw after herbicide application. Abbreviations: REDUCT = % Reduction in Wildflower stand establishment. o=No effect; 100 = Complete elimination of Wildflowers. PER PLT = Actual count of Wildflower species per plot. 164 , EVALUATION OF PRODIAMINE AND METOLACHLOR IN WILDFLOWERS , TRT NO. 1 2 3 4 5 6 7 8 HERBICIDE Prodiamine 65DF Prodiamine 65DF Prodiamine 65DF Prodiamine 65 DF + Prodiamine 65DF Metolachlor 7.8EC Metolachlor 7.8EC Metolachlor 7.8EC + Metolachlor 7.8EC Untreated Check RATE GROW Ib/ai STAGE CVPES % CONTRL 5-5-95 0.75 Pre-A 0 0.97 Pre-A 0 1.5 Pre-A 0 0.5 Pre-A 0 + + 0.5 Pre-B 2.0 Pre-A 80 4.0 Pre-A 95 2.0 Pre-A 78 + + 2.0 Pre-B 0 LSD (0.05) 8 LAMAM % CONTRL 5-5-95 100 100 100 100 93 97 93 0 9 CORN FLOWER %REDUCT 5-5-95 47 73 47 17 27 80 13 0 44 CALIF POPPY %REDUCT 5-5-95 77 80 87 3 33 87 43 0 17 GALRDA % REDUCT 5-5-95 89 93 83 93 83 90 96 0 23 TREE MALLOW %REDUCT 5-5-95 99 99 99 99 SCARLT FLAX %REDUCT 5-5-95 57 60 63 37 YARRW % REDUCT 5-5-95 66 86 99 43 0 27 0 73 47 40 0 23 20 0 0 0 28 42 42 4 EVALUATION OF PRODIAMINE AND METOLACHLOR IN WILDFLOWERS TRT NO. 1 HERBICIDE Prodiamine 65DF RATE Ib/ai 0.75 CORN FLOWER GROW STAGE Pre-A NO.1 PLOT 7-6-95 14 CALIF. POPPY NO.1 PLOT 7-6-95 14 GALRDA NO.1 PLOT 7-6-95 12 BLACKEYED SUSAN NO.1 PLOT 7-6-95 3 SCARLET FLAX NO./PLOT 7-6-95 5 TREE MALLOW NO./PLOT 7-6-95 1 YARRW SCARLT SAGE NO./PLOT 7-6-95 5 NO./PLOT 7-6-95 2 2 Prodiamine 0.97 Pre-A 14 8 13 3 7 65DF 0 10 3 3 Prodiamine 1.5 Pre-A 14 13 17 3 7 65DF 4 Prodiamine 0.5 Pre-A 65DF + + + Prodiamine 0.5 Pre-B 17 17 12 2 7 65DF 0 13 2 ~ ~ 0 11 3 5 Metolachlor 2.0 Pre-A 16 12 10 10 5 7.8EC 3 17 2 6 Metolachlor 4.0 Pre-A 10 12 10 6 6 7.8EC 3 16 2 7 Metolachlor 2.0 Pre-A 7.8EC + + + Metolachlor 2.0 Pre-B 12 16 9 8 6 7.8EC 2 19 2 8 Untreated Check 15 12 12 5 7 3 22 3 LSD (0.05) 7 8 8 4 5 3 9 2 EVALUATION OF PRODIAMINE AND METOLACHLOR IN WILDFLOWERS DIGSP CYPES OXAST TRT NO. HERBICIDE 1 Prodiamine 65DF 2 Prodiamine 65DF 3 Prodiamine 65DF 4 Prodiamine 65DF + Prodiamine 65DF 5 Metolachlor 7.8EC 6 Metolachlor 7.8EC 7 Metolachlor 7.8EC + Metolachlor 7.8EC 8 Untreated Check RATE Ib/ai 0.75 0.97 1.5 0.5 + 0.5 2.0 4.0 2.0 + 2.0 GROW STAGE % CONTROL 8-15-95 Pre-A 98 Pre-A 100 Pre-A 98 Pre-A 95 + Pre-B Pre-A 90 Pre-A 100 Pre-A 90 + Pre-B 0 LSD (0.05) 12 % CONTROL 8-15-95 0 0 0 0 % CONTROL 8-15-95 93 98 85 85 57 13 58 40 62 13 0 0 47 35 STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist. UGA Griffin, GA WEEDS 1 2 3 CROPS 1 PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS FIELD PREPARATION INITIATION COMMENTS WEATHER STATION CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME DIGSP, Southern Crabgrass CYPES, Yellow Nutsedge BRAPP, Broadleaf Signalgrass COMMONNAME Wildflowers, SE Color mix, Broadcast, Planted on 4-25-96 at 20 lb/acre. COSMOS = Cosmos, Cosmos sulphureus ANNCOREO = Annual Coreopsis, Coreopsis lanceolata CORNFLW = Cornflower (Bachelor's Button), Centaurea cyanus CAPOPPY = California Poppy, Eshscholzia californica 5ftx 15ft Randomized Complete Block (RCBD) 3 Site roto-tilled before seeding wildflowers. Soil temperature was 74 F. Wildflowers mulched with wheat straw after seeding and irrigated. Griffin, GA APPLICATION DATE TIME OF DAY METHOD TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH APPLICATION INFORMATION A 4-25-96 7:00pm Broadcast Pre Ground 78 0 168 APPUCATIONINFORMATION DEW PRESENCE, YESINO No SOn.. TEMP.,F 74 SOn.. MOISTURE Fair CLOUD COVER % 0 EQUIPMENT Backpack OPERATING PSI 30 NOZZLE INFORMATION Flat fan, 11004, 20 inch Spacing - BOOM INFORMATION 5 foot Length. 18 inch Height GROUND SPEED, MPH 3 CARRIER Water SPRAY VOLUME, GPA 25 PROPELLANT CO 2 TRIAL COMMENTS Study originally seeded 3-14-96. Due to suspicion ofpicloram contamination in containers, test was tenninated and reseeded in a new area on 4-25-96. NO./2 FT. ABBREVIAnONS Number of wildflower plants by species per 2.0 square ft. of plot area. 169 (FLOWERl) j University of GA Coop Ext Service EFFICACY OF ENDURANCE AND ENDURANCE COMBINATIONS FOR WEED CONTROL DURING WILDFLOWER ESTABLISHMENT. Trial ID: FLOWER 1 Investigator: TIM MURPHY AND WILL CORLEY Location: GEORGIA STATION Study Dir.:. Tim R Murphy AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval DIGSP CYPES DIGSP CYPES DIGSP CYPES BRAPP CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 05-16-96 05-16-96 06-04-96 06-04-96 07-11-96 07-11-96 07-11-96 21 DA-A 21 DA-A 40 DA-A 40 DA-A 77 DA-A 77 DA-A 77 DA-A Trt Treatment No. Name 1 UNTREATED 2 ENDURANCE Fonn Fm Rate Appl Amt Ds Rate Unit Code 65 WDG 0.75 LB AlA Ob Oc Ob oc oc Oc Od 100 a oc 97 a oc 77b Oc 75 be 3 ENDURANCE 65 WDG 0.97 LB AlA 100 a 7c 100 a Oc 98 a Oc 75 be 4 ENDURANCE 65 WDG 1.5 LB AlA 100 a Oc 100 a Oc 98 a Oc 88 ab 5 A ENDURANCE B GALLERY 6 A ENDURANCE B GOAL 65 WDG 1.5 LB AIA EARLY MARCH 100 a 75 DF 0.38 LB AlA 65 WDG 1.5 LB AIA EARLY MARCH 100 a 1.6 EC 0.5 LB AlA Oc 95 a 20 b 23 b 100 a Oc 95 a 13b 63 c 98 a oc 87 ab 7 A ENDURANCE 65 WDG 1.5 LB AlA EARLY MARCH 100 a B SULFENTRAZONE 75 WDG 0.25 LB AlA 92 a 100 a 93 a 97 a 96 a 93 ab 8 A ENDURANCE B PLATEAU I'-LS_D....;.(P=_-_.05..;...) 65 WDG 1.5 LB AlA EARLY MARCH 100 a 2L 0.094 LB AlA 100 a 100 a 99 a 100 a 100 a 100 a 1_ _ 1'-_ _ 0_.0..... 1_6..1..1..._ _5...5..l. 13_.1..1..._ _ 6.21_ _8.....l.01 18---l.01 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (FLOWER1) University of GA Coop Ext Service WeedCod~ Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval CAPOppy CORNFLW COSMOS ANNCOREO NO.l2 IT NO.l2 IT NO.l2 IT 06-04-96 06-0496 060496 40DA-A 40DAA 40DA-A NO.l2 IT 06-0496 40DAA Trt Treatment No. Name 1 UNTREATED 2 ENDURANCE Form Fm Rate Appl Amt Ds Rate Unit Code 65 WDG 0.75 LB AlA 16 a Oa 14 ab oa 2 ab oc 4a 2 ab 3 ENDURANCE 4 ENDURANCE 65 WDG 0.97 LB AlA 65 WDG 1.5 LB AlA 7 cd Oa 8he o a 5 A ENDURANCE 65 WDG 1.5 LB AIA EARLY MARCH 1 de Oa B GALLERY 75 DF 0.38 LB AlA 6 A ENDURANCE 65 WDG 1.5 LB AIA EARLY MARCH 1 de oa B GOAL 1.6 EC 0.5 LB AlA 7 A ENDURANCE 65 WDG 1.5 LB AIA EARLY MARCH 7 cd oa B SULFENTRAZONE 75 WDG 0.25 LB AlA 1b Oc 2 ab 2a Ob oc Ib Ohe Ob 2a 8 A ENDURANCE B PLATEAU 65 WDG 1.5 LB AlA EARLY MARCH Oe Oa 2L 0.094 LB AlA Ob Oc ILSD (p=.05) 6.11 0.51 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) AOV Means Table ;~;.&.-'~"i1 Site Descriptmn STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R. Murphy Extension Weed Scientist, UGA Griffin, GA CROPS 1 PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS FIELD PREPARATION INITIATION COMMENTS WEATHER STATION CROP AND WEED DESCRIPTION COMMONNAME Wildflowers, SE Color Mix, Broadcast on 3-14-96 at 20 lb/acre. BBLU-EYE = Baby Blue-Eyes, Nemophila insignis ANNCOREO = Annual Corepsis, Coreopsis /anceo/ata BABUTTON = Bachelor's Button (Cornflower), Centaurea cyanus CAPOPPY = California Poppy, Eshscho/zia californica YARROW = Yarrow, A/chemi//a mi//efo/ium BABREATH = Baby's Breath, Gysophi/a e/egans CORNPOP = Com Poppy, Papaver rhoeas 5ftx 15ft Randomized Complete Block (RCBD) 3 Site roto-tilled smooth before seeding wildflowers. Soil Temperature was 56 F. 5 ft. check or untreated area at back of each plot. Wildflowers mulched with wheat straw after seeding and irrigated. Griffm, GA APPLICATION DATE TIME OF DAY METHOD TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH APPLICATION INFORMATION A 3-15-96 9 - 10 am Broadcast Pre Ground 63 5 172 DEW PRESENCE, YESINO SOIL TEMP.,F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION INFORMATION No 56 Good 70 Backpack 30 Flat fan, 8004, 19 inch Spacing 6.5 foot Length, 19 inch Height 3 Water 25 CO2 TRIAL COMMENTS No weeds were evident in untreated check plots on May 16 and July 11, 1996. Wildflower establishment in this study was excellent NO./2FT. ABBREVIATIONS Number of wildflower plants by species per 2.0 square ft. of plot area. -- 173 (FLOWER2) j University of GA Coop Ext Service EFFICACY OF ENDURANCE AND PENNANT FOR WEED CONTROL DURING WILDFLOWER ESTABLISHMENT Trial ID: FLOWER2 Investigator: TIM MURPHY AND WILL CORLEY Location: GA STATION Study Dir.: Tim R Murphy AOV Means Table Crop Code Part Rated Rating Unit Rating Date Trt-Eva! Interval BBLU-EYE CAPOPPY BABUTTON YARROW BABREATH ANNCOREO CORNPOP STAND STAND STAND STAND STAND STAND STAND NO.l2FT NO.l2 FT NO.l2 FT NO.l2 FT NO.l2 FT NO.l2 FT NO.l2FT 05-16-96 05-16-96 05-16-96 05-16-96 05-24-96 06-04-96 06-04-96 62 DA-A 62 DA-A 62 DA-A 62 DA-A 70 DA-A 81 DA-A 81 DA-A Trt Treatment No. Name Fonn Fm Rate Appl Amt Ds Rate Unit Code 1 UNTREATED 2 A ENDURANCE 3 A ENDURANCE 4 A ENDURANCE 5 A ENDURANCE 7a 65 WDG 0.5 LBAIA EARLY MARCH 7a 65 WDG 0.75 LBAIA EARLY MARCH 2 ab 65 WDG 0.97 LB AlA EARLY MARCH 3 ab 65 WDG 1.5 LB AIA EARLY MARCH 1 ab 19 ab 20 ab 25 a 13b 15 ab 12 a 7 ab 4 ab 5 ab 3b lla 8a 4b oc 2b oc 5b oc 1b oc 24 a 3a 10 b Ob lOb o ab 14 b Ob 13b Ob 6 A PENNANT 7.8 EC 2.0 LB AIA EARLY MARCH Ob 16 ab 5 ab 4b 7 ab 14 b Ob 7 A PENNANT 7.8 EC 4.0 LBAIA EARLY MARCH Ob llb 4 ab 2b 3 bc 15 b 1 ab 1L-~S_D...;.(p=_-_.05...:..) l-_.....:5:..:,:.8.J...1_..:.1O:..:,:.8.J...1_ _7..;.,;,.0.1-1_ _4_.01'-----.;..._4....11.1'--_ _7_.81...._ _2_.61 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) ._---; Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R. Murphy Extension Weed Scientist, UGA Griffm, GA WEEDS 1 2 3 4 5 CROPS 1 PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS FIELD PREPARATION INITIATION COMMENTS SOIL INFORMATION WEATHER STATION CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME WHEAT, Wheat LAMAM, Henbit LOLMU, Italian Ryegrass CYPES, Yellow Nutsedge BRAPP, Signalgrass COMMONNAME Mixed Wildflowers, Broadcast, Planted on 3-14-96 at 10 Ib/acre. COSMOS = Cosmos, Cosmos sulphureus AN.COREP = Annual Coreopsis, Coreopsis lanceolata CORNFLWR = Cornflower (Bachelor's Button), Centaurea cyanus CAPOPPY = California Poppy, Eshscholzia californica YARROW = Yarrow, Alchemilla millefolium 5ftx15ft Randomized Complete Block (RCBD) 3 Roto tilled, mulched, seeded, sprayed. 5 ft. wide plot, 3 ft. check on untreated area between each plot. Sandy Loam, 2.61% Organic Matter, 72% Sand, 16% Silt, 12% Clay, 5.5 pH GA Station, Griffm, GA 175 APPLICATION DATE TIME OF DAY METHOD TIMING PLACEMENT AIR TE:MP., F WIND VELOCITY, :MPH DEW PRESENCE, YESINO SOIL TE:MP., F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, :MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION INFORMATION A 4-17-97 8:30 am Broadcast Pre Ground 52 5 No 53 Good 50 Backpack 25 Flat fan. 11004,20 inch Spacing 5 foot Length, 19 inch Height 3 Water 25 CO2 -- 176 , (ENDURANC) University of GA Coop Ext Service WEED CONTROL AND TOLERANCE OF DIRECT-SEEDED WILDFLOWERS TO ENDURANCE AOV Means Table Trial ID: ENDURANCE Investigator: WILL CORLEY Location: ELLIS RD. GA STATN Study Dir.: Tim R Murphy Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval WHEAT LAMAM YARROW CORNFLWR CAPOPPY YARROW CORNFLWR CAPOPPY STAND STAND STAND STAND STAND STAND CONTROL CONTROL DENSITY DENSITY DENSITY DENSITY DENSITY DENSITY 0-100 0-100 PLT/3Fr2 PLT/3Fr2 PLT/3Fr2 PLT/3Fr2 PLT/3Fr2 PLT/3Fr2 05-16-97 05-16-97 05-16-97 05-16-97 05-16-97 06-16-97 06-16-97 06-16-97 29DA-A 29DA-A 29DA-A 29 DA-A 29 DA-A 60 DA-A 60DA-A 60DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 1 ENDURANCE 65 WG 0.75 LB AlA PRE 88 b 100 a 4a 5a 2 ab 4a 3a 4 ab 2 ENDURANCE 65 WG 0.97 LB AlA PRE 94 ab 100 a 9a 5a 4a 13a 5a 4 ab 3 ENDURANCE 4 ENDURANCE GALLERY 5 ENDURANCE PLATEAU 65 WG 1.50 LB AlA PRE 99 a 100 a 6a 3a 2 ab 6a 3a 3 ab 65 WG 0.97 LB AlA PRE 94 ab 100 a 5a 1a Ob 6a 1a oc 75 DF 0.38 LB AlA PRE 65 WG 0.97 LB AlA PRE 100 a 100 a 4a oa Ob 5a 2a 2bc 2 SC 0.094 LB AlA PRE 6 UNTREATED CHECK Oc Ob 5a 3a 3a 6a 4a 6a I,-LS_D...;..(p=_-._05.;...} &.....-_9_.4.L-1_ _0.0..L.1_ _ 9.91 6..3..1._ _2_7..1...._ _9.....,j.21L-.._ _4.....,j.61L-.._ _2--<.91 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (ENDURANC) AOV Means Table j University of GA Coop Ext Service Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval LOLMU CYPES AN.COREP COSMOS YARROW CORNFLWR CAPOPPY AN.COREP STAND STAND DENSITY DENSITY CONTROL CONTROL ESTABLST ESTABLST ESTABLST ESTABLST PLT/3Ff2 PLT/3Ff2 0-100 0-100 0-100 0-100 0-100 0-100 06-16-97 06-16-97 06-16-97 06-16-97 07-16-97 07-16-97 07-16-97 07-16-97 60 DA-A 60 DA-A 60 DA-A 60 DA-A 90 DA-A 90 DA-A 90 DA-A 90 DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 1 ENDURANCE 65 WG 0.75 LB AlA PRE 5 a 2a 93 a Ob 100 a 100 a 100 a 100 a 2 ENDURANCE 65 WG 0.97 LB AlA PRE 6a 1a 93 a Ob 100 a 87 a 73 ab 100 a 3 ENDURANCE 65 WG 1.50 LB AlA PRE 5 a 2a 100 a Ob 77 ab 77a 73 ab 100 a 4 ENDURANCE 65 WG 0.97 LB AlA PRE Ob Oa 93 a Ob 47 b 37 b 20 b 28 b ro GALLERY 75 DF 0.38 LB AlA PRE r-- rl 5 ENDURANCE 65 WG 0.97 LB AlA PRE 1 b 1a 100 a 93 a 67 ab lOb 40 ab 17 b PLATEAU 2 SC 0.094 LB AlA PRE 6 UNTREATED CHECK I....LS_D....;,(P=_-_.0...;.,5} 3 ab 1a Ob Ob 100 a 100 a 100 a 100 a 3_.31_ _3_.21....._ _9.3-1.1_ _2_.11_ _45_.51 30_.31_ _65_.61_ _12_.51 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (ENDURANC) ~ WeedCod~ Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval University of GA Coop EXt Service COSMOS CVPES BRAPP ESTABLST CONTROL CONTROL 0-100 0-100 0-100 07-16-97 07-16-97 07-16-97 90 DA-A 90 DA-A 90 DA-A Trt Treatment No. Name Form Fm Rate Grow Amt Ds Rate Unit Stg 1 ENDURANCE' 65 WG 0.75 LB NA PRE 73 a Ob 92 a 2 ENDURANCE 65 WG 0.97 LB NA PRE 83 a Ob 92a 3 ENDURANCE 65 WG 1.50 LB AIA PRE 90 a Ob 100 a 4 ENDURANCE GALLERY 65 WG 0.97 LB AlA PRE 47 a Ob 95 a 75 DF 0.38 LB NA PRE 5 ENDURANCE PLATEAU 65 WG 0.97 LB NA PRE 57 a 93 a 2 SC 0.094 LB NA PRE 100 a 6 UNTREATED CHECK 100 a Ob Ob II.-LS_D....;,(P=_-_.0...;.5> 1--_5_2_.01_ _2_.1..1..._ _ll--J.91 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) AOV Means Table !f!I~.!t).'.).!.rm.i.l.i.i.I.::..~,I:.i~.ir.i .iIr.. i.i.~...i ~.;Ii.i.II~~!!~!!!!il!~ri .:.:::::.:::.:::::::::::::;:::.:;::::::::::::;:;:;:;:;:;:::;:;:;:::::;:;;:;;:;:::;::::};;;::;:::::;:;:;:;::;:;::::;:;:;:.;.:.:.:.;.... ltN . .i.i.i:.,. ..i).!. l.:.m .:i.:.i.i i.i..i.\i.i.N ..Ii.i.i I...(.:4).)..::..i:G....I:i.:.i.I:::.EI.:.:.i::.:.:.N.i.fi:.i.i:..l.:.ilI Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R. Murphy Extension Weed Scientist, UGA Macon, GA CROPS 1 PLANTING INFORMATION 2 PLANTING INFORMATION 3 PLANTING INFORMATION PLOT WIDTH x LENGTH .STUDY DESIGN REPLICATIONS INITIATION COMMENTS CROP AND WEED DESCRIPTION CODE, COMMON NAME VINCA, Annual Vinca, Peppennint 4-25-97, Transplants, 6 plants/plot BEGNA, Annual Begonia 4-25-97, Transplants, 6 plants/plot SALVI, Annual Salvia 4-25-97, Transplants, 6 plants/plot 3ftx6ft Split plot 4 2 inch cypress bark mulch applied after transplants. Site irrigated as needed. APPLICAnON DATE TIME OF DAY METHOD TIMING PLACEMENT AIR TEMP.,F WIND VELOCITY, MPH DEW PRESENCE, YESINO SOlL TEMP., F SOIL MO--ISTURE CLOUD COVER % APPLICATION INFORMAnON A B 5-12-97 5-26-97 9:00 am 4:00 pm Broadcast Post Foliar 64 85 0 6 No No 64 82 Good Good 30 30 180 APPLICATION EQUIPMENT OPERATING PSI NOZZLE INFORMAnON BOOM INFORMAnON GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION CROP 1; VINCA, Vmca CROP 2; BEGNA, Begonia CROP 3; SALVI, Salvia APPLICATION INFORMATION A IB Backpack 30 Flat fan, 8003, 18 in. Spacing 3 ft. Length, 20 in. Height 3 Water 25 CO2 CROP STAGE AT EACH APPLICATION A I st Bloom, Cher, 4 in. Height I st Bloom, 2.5 in. Height I st Bloom, 6 in. Height B Early Bloom, 6 in. Height Early Bloom, 3 in. Height Full Bloom, lOin. Height TREATMENT APPLICATION COMMENTS Manage drift damaged Salvia (SALVI) in some untreated checks. 1 Rl (HERBORN) University of GA Coop Ext Service TOLERANCE OF ANNUAL ORNAMENTALS TO BASAGRAN AND MANAGE Trial ID: HERBORN Investigator: FRANK FUNDERBURK Location: BIBB COUNTY, MACON Study Dir.: Tim R Murphy Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval Trt Treatment No. Name 1 BASAGRAN coe ANNUAL VINCA 2 BASAGRAN COC ANNUAL BEGONIA 3 BASAGRAN COC ANNUAL SALVIA 4 BASAGRAN COC ANNUAL VINCA 5 BASAGRAN COC ANNUAL BEGONIA 6 BASAGRAN COC ANNUAL SALVIA 7 MANAGE NIS ANNUAL VINCA Fonn Fm Rate Amt Ds Rate Unit 4 SL 2.0 PT/A L 2.0 PT/A ORNAMNTL ORNAMNTL ORNAMNTL ORNAMNTL ORNAMNTL FOLIAG FOLIAG FOLIAG FOLIAG FOLIAG INJURY INJURY INJURY DRWEIGHT DRWEIGHT 0-100 0-100 0-100 G/6PLANT GIPLANT 05-26-97 06-09-97 06-23-97 06-26-97 06-26-97 14 DA-A 28 DA-A 42 DA-A 45 DA-A 45 DA-A Grow Stg POST 9 de POST 10 cd 9 ef 278 c-f 46.3 c-f 4 SL 2.0 PT/A POST o e 3d 3 ef 530 a 88.3 a L 2.0 PT/A POST 4 SL 2.0 PT/A POST 3 e L 2.0 PT/A POST 6 cd 5 ef 386 a-d 64.4 a-d 4 SL 4.0 PT/A POST 13d 21 c 18 de 195 d-g 32.5 d-g L 2.0 PT/A POST 4 SL 4.0 PT/A POST 1 e L 2.0 PT/A POST 9 cd 6 ef 458 abc 76.3 abc 4 SL 4.0 PT/A POST 9 de L 2.0 PT/A POST 14 cd 10 ef 355 a-d 59.2 a-d 75 WG 1.33 OZIA POST 18 cd L 0.5 %VNPOST 10 cd 13 def 320 b-e 53.3 b-e .... _.. ''c .. / '. AOV Means Table ,\ (HERBORN) University of GA Coop Ext Service Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval ORNAMNTL ORNAMNTL ORNAMNTL ORNAMNTL ORNAMNTL FOLIAG FOLIAG FOLIAG FOLIAG FOLIAG INJURY INJURY INJURY DRWEIGHT DRWEIGHT 0-100 0-100 0-100 G/6PLANT GIPLANT 05-26-97 06-09-97 06-23-97 06-26-97 06-26-97 14 DA-A 28 DA-A 42 DA-A 45 DA-A 45 DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 8 MANAGE 75 WG 1.33 OZ/A POST 15 cd 60 b NIS L 0.5 % VN POST ANNUAL BEGONIA 70 bc 102 fg 16.9 fg 9 MANAGE 75 WG 1.33 OZ/A POST 61 b 65 b 65 c 132 efg 22.0 efg NIS L 0.5 % VN POST ANNUAL SALVIA 10 MANAGE 75 WG 2.67 OZ/A POST 18 cd 20 c 26 d 284 c-f 47.3 c-f NIS L 0.5 % VN POST ANNUAL VINCA 11 MANAGE 75 WG 2.67 OZ/A POST 23 c 68 b 81 ab 31 g 5.2 g NIS L 0.5 % VN POST ANNUAL BEGONIA 12 MANAGE 75 WG 2.67 OZ/A POST 79 a 84 a 86 a 30 g 5.0 g NIS L 0.5 % VN POST ANNUAL SALVIA 13 UNTREATED CHECK oe Od Of 284 c-f 50.9 b-f ANNUAL VINCA 14 UNTREATED CHECK oe Od Of 501 ab 83.6 ab ANNUAL BEGONIA IS UNTREATED CHECK oe Od Of 304 b-f 50.6 b-f ANNUAL SALVIA I_LS_D....;(P=_-_.0....;.S) '---_ _8..9..I1...._ _1_3.81 13_.3..&..1_ _1_84_.51_ _3_0.4 11 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) AOV Means Table Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R Murphy Extension Weed Scientist, UGA 1-85 Ramp to Old National Hwy., Atlanta, GA WEEDS I 2 3 4 5 6 7 CROPS I PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS INITIATION COMMENTS CROP AND WEED DESCRIPTION BA YER CODE, COMMONNAME, ABBREVIATION DIGSP, Southern Crabgrass, CRABGRS SETLU, Yellow Foxtail, YFXTAIL SOOZZ, Goldenrod spp., GOLROD GERCA, Carolina Geranium. C.GERNM VICZZ, Vetch spp.,VETCH OXAZZ, Woodsorrell spp. (Ora/is), OXAUS EPHNU, Nodding Spurge, SPURGE BAYER CODE, COMMONNAME IUPCO, Common Juniper, Compact Pfitzer, Established 10 ft. x 18 ft. Randomized Complete Block (RCBD) 3 Very poor cover of mulch APPLICATION INFORMATION APPLICAnON A B DATE 9-13-94 2-24-95 TIME OF DAY 10 am-I pm IIam-Ipm TIMING Pre Pre AIR TEMPERATURE, F 89 58 WIND VELOCITY and DIRECTION 0 8mph,E SOI1 TE:MPERATURE, F 86 52 C 9-20-95 9:30 - II :30am Pre 78 0 78 184 APPLICAnON SOIL MOISTURE LEAF MOISTURE OPERATING PSI NOZZLE INFORMATION SPRAY VOLUME, GPA PROPELLANT MIX SIZE, GALLON A Dry Dry 30 11004/3 25 CO2 0.53 B Normal Dry 30 11004/3 25 CO2 0.53 C Normal Dry 30 11004/3 25 CO2 0.53 WEED STAGE AT EACH APPLICAnON APPLICAnON WEED I; DIGSP, Southern Crabgrass WEED 2; SETLU, Yellow Foxtail A Seedhead Seedhead B --- WEED 3; SOOZZ, Goldenrod spp. WEED 4; GERCA, Carolina Geranium WEED 5; VICZZ, Vetch spp. WEED 6; , Oxalis spp. Seedhead --- -- 2 in. Rosette 6 in. 6 in. 2 in. C Seedhead Seedhead --- -- TRIAL COMMENTS Snapshot TG applied with Ortho rotary spreader. No injury to Juniper on 4-4-95. Goldenrod present on site. On 8-29-95, experiment site had very poor cover of mulch. Sheet erosion occuring in several spots. Goldenrod removed by DOT personnel on 9-10-95. Herbicides applied to same plots on 9-13-94, 2-24-95, and 9-20-95. 1.85 TREATMENT NO. NAME WINTER ANNUAL WEED CONTROL IN GA DOT ORNAMENTALS FORMUL. RATE GRW lb/ai STG DS AMNT JUNIPER %Injury 2-24-95 OXALIS fJ/oContro/ 2-24-95 C.GERANM fJ/oContro/ 2-24-95 VETCH fJ/oContro/ 4-4-95 C.GERNM fJ/oContro/ 4-4.:.95 OXALIS fJ/oContro/ 4-4-95 GOLDROD fJ/oContro/ 4-4-95 1 Surflan FL 4.0 2.25 PRE 0 82 67 2 Gallery OF 75% 0.75 PRE 0 93 89 3 Surflan FL 4.0 3.0 PRE 0 63 82 4 Gallery OF 75% 1.0 PRE 0 57 77 5 Surflan FL 4.0 2.25 PRE 0 75 83 Gallery 75% 0.75 PRE 6 Surflan FL 4.0 3.0 PRE 0 86 97 Gallery OF 75% 1.0 PRE 7 Snapshot OF 80% 3.0 PRE 0 72 95 8 Snapshot OF 80% 4.0 PRE 0 88 98 9 Snapshot GR 2.5% 3.75 PRE 0 85 92 10 Snapshot GR 2.5% 5.0 PRE 0 97 100 11 Untreated check 0 0 0 LSD NS 31 22 17 65 92 88 7 77 87 78 88 82 97 90 87 95 72 90 92 95 87 98 0 0 22 24 85 0 90 0 63 0 60 0 83 0 95 10 80 0 97 0 78 0 100 0 0 0 27 9 TREATMENT NO. NAME 1 Surflan 2 Gallery 3 Surflan 4 Gallery 5 Surflan Gallery 6 Surflan Gallery 7 Snapshot 8 Snapshot 9 Snapshot 10 Snapshot 11 Untreated check WINTER ANNUAL WEED CONTROL IN GA DOT ORNAMENTALS (continued) FORMUL DS AMNT RATE Ib/ai GRW STG JUNIPER %Injury 6-26-95 YFXTAIL 'YoControl 6-26-95 SPURGE 'YoControl 6-26-95 SPURGE 'YoControl 8-29-95 YFXTAIL 'YoControl 8-29-95 CRABGRS 'YoControl 8-29-95 FL 4.0 2.25 PRE 0 98 87 63 95 99 DF 75% 0.75 PRE 0 7 33 30 0 0 FL 4.0 3.0 PRE 0 100 96 93 97 98 DF 75% 1.0 PRE 0 0 20 33 0 0 FL 4.0 2.25 PRE 0 93 77 75% 0.75 PRE 43 88 100 FL 4.0 3.0 PRE 0 98 92 DF 75% 1.0 PRE 93 92 98 DF 80% 3.0 PRE 0 90 88 DF 80% 4.0 PRE 0 95 83 80 73 98 53 92 100 GR 2.5% 3.75 PRE 0 98 75 78 90 100 . GR 2.5% 5.0 PRE 0 95 90 97 83 100 0 0 0 0 0 0 LSD NS 10 37 38 25 3 A COMPARISON OF SURFLAN + PRINCEP vs. DERBY FOR WINTER WEED CONTROL IN ANDORRA JUNIPER Tim R. Murphy, Extension Weed Scientist A non-replicated demonstration was conducted to evaluate the effectiveness of Derby [a granular formulation ofmetolachlor (4%) and simazine (1%)] and a tank-mix ofSurflan + Princep for winter weed control in 'Andorra' juniper. Treatment particulars were: Location: Interstate 20 west ramp to Capitol Avenue, Atlanta Plot Size: Approximately 200 ft. by 80 ft. Planting was located on a 40% slope adjacent to the interstate. Cultivar: Andorra juniper Cultivar Growth Stage: Established, 3 ft. diameter, 1 to 2 ft. mulched area between plants Application Method: Derby - hand-held rotary spreader Surflan + Princep - applied at 25 gpa, with a 5 ft. spray boom equipped with 11004 nozzle tips. Herbicide Rate: Derby - 4.0 lbs. ai/acre metolachlor + 1.0 lb. ai/acre simazine Surflan 4AS - 4.0 lbs. ai/acre + Princep 4L - 1.0 lb. ai/acre Application Date: August 30, 1995 Environmental Conditions: Air temperature - 90 F. Soil temperature - 84 F. Soil moisture - good Sun - bright Wind speed - 0 mph Mulch Cover: Site was mulched by GA DOT personnel in September 1995 with 4 inches of shredded hardwood. CONCLUSIONS: No herbicide injured Andorra juniper when evaluated at 4.5 and 7.0 months after treatment (data not shown). Weed control data is shown in Table 1. 188 Herbicide Derby Surflan + Princep Untreated Check Table 1. Winter weed control with Derby and Surflan + Princep in Andorra juniper. Weed Control (%) Common Chickweed Carolina Geranium Rate 4.5 lbs. MAr ai./ac 7.0 MAT 4.5 MAT 7.0 MAT 4.0+ 90 90 90 70 LOb Prickly Lettuce 4.5 MAT 7.0 MAT 90 95 Vetch spp. 4.5 MAT 7.0 MAT 98 99 Henbit 4.5 MAT 7.0 MAT 90 90 4.0+ 80 70 80 70 1.0 80 95 60 60 80 70 --- o(5%Y 0(10%) 0(5%) 0(15%) 0(5%) 0(5%) 0(1'5%) 0(30%) 0(15%) 0(25%) a Months after treatment. b Metolachlor + simazine C ( ) denotes percent weed cover in untreated check. Evaluation of Derby and OHII for Winter Weed Control in Andorra Juniper Tim R. Murphy, Extension Weed Scientist A non-replicated demonstration was conducted to evaluate Derby [a granular formulation of metolachlor (4%) and simazine (1%)] and OIDI [a granular formulation of oxyfluorfen (2%) and pendimethalin (1 %)] for weed control and phytotoxicity to 'Andorra' juniper. Treatment particulars were: Location: Interstate 20 east exit to Interstate 75/85 north, Atlanta Plot Size: Approximately 8,000 sq. ft. for OIDI site; 6,000 sq. ft. for Derby treatment Cultivar: Andorra juniper Cultivar Growth Stage: Established, 12 to 18 inches tall; 3 ft. diameter, 1 to 2 ft. mulched (shredded hardwood bark) area between plants Application Method: Hand-held rotary spreader Herbicide Rate: 2.3 pounds OIDI per 1,000 square feet (equal to 2.0 lbs. ai/acre oxyfluorfen + 1.0 lb. ai/acre pendimethalin) 2.3 pounds Derby per 1,000 square feet (equal to 4.0 Ibs. ai/acre metolachlor + 1.0 lb. ai/acre simazine Application Date: August 30, 1995 Environmental Conditions: Air temperature - 88 F. Soil temperature - 84 F. Soil moisture - good Sun - bright Wind speed - 0 mph CONCLUSIONS: At 4.5 months after treatment (February 21, 1996), no injury was observed on Andorra juniper. Weed populations in the untreated check area were very low and averaged only 1.0% ground cover. Both Derby and OIDI were estimated to provide 99% control of henbit and common chickweed. The August application of 4 inches of hardwood mulch was also providing excellent control of these two weeds in the untreated check area. 190 EVALUATION OF OHII FOR WINTER WEED CONTROL IN PFITZER JUNIPER Tim R. Murphy, Extension Weed Scientist A non-replicated demonstration was conducted to evaluate OHII [a granular formulation of oxyfluorfen (2%) and pendimethalin (1%)] for weed control and phytotoxicity to 'Pfitzer' Jumper. Treatment particulars were: Location: Boulevard exit off of Interstate 20 east, Atlanta Plot Size: Approximately 400 ft. by 30 ft. Cultivar: Pfitzer juniper Cultivar Growth Stage: Established, 2 to 6 ft. tall, 1 to 2 ft. mulched area between plants Application Method: Hand-held rotary spreader Herbicide Rate: 2.3 pounds OHII per 1,000 square feet (equal to 2.0 lbs. ai/acre oxyfluorfen + 1.0 lb. ai/acre pendimethalin) Application Date: August 30, 1995 Environmental Conditions: Air temperature - 85 F. Soil temperature - 75 F. Soil moisture - good Sun - bright Wind speed - 0 mph Mulch Cover: Site was mulched by GA DOT personnel in September 1995 with 4 inches of shredded hardwood. CONCLUSIONS: At 4.5 months after treatment (February 21, 1996), no injury was observed on Pfitzer juniper. No weeds were present in area treated with OHII or the untreated check area. At 7.0 months after treatment (April 2, 1996), amI did not injure Pfitzer juniper. At this evaluation, percent weed cover in the untreated check averaged: hairy bittercress - 10%, Carolina geranium - 5%, vetch spp. - 5%. Over the entire test site, amI provided an estimated 95% control of these weeds. The September application of mulch probably decreased weed emergence in the untreated check area. 191 Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R Murphy Extension Weed Scientist, UGA I-751I-85N ramp to I-20E. Atlanta, GA WEEDS 1 2 3 CROPS 1 PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS INlTlAnON COMMENTS OBJECTIVE CROP AND WEED DESCRIPTION CODE, COMMONNAME PLETTUC. Prickly Lettuce CmCKWD. Chickweed VETCH, Vetch BAYER CODE, COMMON NAME IUPCO. Common Juniper, Andorra, Established 10 ft. x 15 ft. Randomized Complete Block (RCBD) 4 3 in. hardwood bark mulch. 12 - 24 in. bare ground with mulch between Junipers. Plots 10ft. wide by 4 Junipers deep. To determine economical tank-mixtures ofpreemergnce herbicides for weed control in roadside ornamentals. APPLICATION INFORMATION APPLICATION A DATE 8-30-95 TlMEOFDAY 9 - 10 am TIMING Pre AIR TEMPERATURE, F 85 WIND VELOCITY and DIRECTION 3 East SOIL TEMPERATURE, F 72 - - SOIL MOISTURE LEAF MOISTURE Normal Dry OPERATING PSI 20 192 NOZZLE INFORMATION 1100413 SPRAY VOLUME, GPA 25 PROPELLANT CO2 MIX SIZE, GALLON 0.53 CROP STAGE AT EACH APPLICATION APPLICATION A CROP 1; JUPeO, Common Juniper, Andorra, Established 30 to 36 inch Diameter, 12 inch Height No injwy to Juniper. Weed population very light. TRIAL COMMENTS % Weeds: o= None 100 = Complete cover ABBREVIATIONS EFFICACY OF AUGUST APPLICATION OF PRE HERBICIDES IN ORNAMENTALS TREATMENT No., Name Form. Rate Grow. Stage JUNIPER %Injury 2-21-96 WEEDS %Infest 2-21-96 PLETTUC !YoControl 4-2-96 CHICKWD VETCH !YoControl !YoControl 4-2-96 4-2-96 1 SURFLAN FL 4.0 3.0 August 0 2 95 100 98 2 GALLERY DF75% 1.0 August 0 0 100 100 100 3 PRINCEP FL 4.0 3.0 August 0 0 100 100 100 4SURFLAN FL 4.0 3.0 GALLERY DF 75% 1.0 August August 0 0 100 99 100 5 SURFLAN FL 4.0 3.0 PRINCEP FL 4.0 3.0 August August 0 0 100 100 100 6 UNTREATED CHECK 0 3 0 0 0 LSD NS 2 6 1 2 lq~ fl)lill),~ll._b,;.:,:._,;.:.;,:.',i.~,s.' :..~.l{.:.:.~.lIri. ~.:'!.:'; ..I ...,.' .;.JJ.:.'.:..: 7E i i..,p :;. .;..i.i.i.i..:.m.i.i.,..i.:.i...,.i.,.i. ,i.i,i.i:.i.ii...i(.}..ii.;.i..i.:i;.:.i:!.i.i.:.i.i:.i:.!:i.;.:.<..:l:.i.:.;.:I.!.:.i:i.,:i.i,i.i:;.l:;.i:;.i.:.i ..i.:i.i:I.':I. ..;:::;:::::::;:::::;:;:; ::;:::::;::;:;:::;:;:;::;::::;:::;:::;:::;:;:;:;::::.:.::;:::::;:;:;:;:;:;:;:;:::::::;:;:;:::::;:;:;:;:::;-::; .:.:.:.:.;:::;::::::: ::::::::::;:::::::;: ;:::;:;:::;:;:;:;:::;:;:;:;:;:;:;:;:;::;:;::. ~'..,:.: Site Description STIJDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R. Murphy Extension Weed Scientist, UGA 1-85 Ramp to Old National Hwy., Atlanta, GA WEEDS I 2 3 4 5 6 7 CROPS I PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS INITIATION COMMENTS CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME, ABBREVIATION DIGSP, Southern Crabgrass, CRABGRS SETLU, Yellow Foxtail, YFXTAIL SOOZZ, Goldenrod spp., GOLROD GERCA, Carolina Geranium, C.GERNM VICZZ, Vetch spp.,VETCH OXAZZ, Woodsorrell spp. (Oxalis), OXALIS EPHNU, Nodding Spurge, SPURGE BAYER CODE, COMMONNAME IUPCO, Common Juniper, Compact Pfitzer, Established 10 ft. x 18 ft. Randomized Complete Block (RCBD) 3 Very poor cover ofmulch APPLICATION JNFORMATION APPLICATION A B DATE 9-13-94 2-24-95 TIME OF DAY 10 am-I pm 11 am -I pm TIMING Pre Pre AIR TEMPERATURE, F 89 58 WIND VELOCITY and DIRECTION 0 8mph,E SO[, tEMPERATURE, F 86 52 C 9-20-95 9:30 - II :30am Pre 78 0 78 194 APPliCATION SOIL MOISTURE LEAF MOISTURE OPERATING PSI NOZZLE INFORMATION SPRAY VOLUME, GPA PROPELLANT MIX SIZE, GALLON A Dry Dry 30 1100413 25 CO2 0.53 B Normal Dry 30 11004/3 25 CO2 0.53 C Normal Dry 30 11004/3 25 CO2 0.53 WEED STAGE AT EACH APPLICATION APPLICATION WEED 1; DIGSP, Southern Crabgrass A Seedhead B -- WEED 2; SETLU, Yellow Foxtail Seedhead -- WEED 3; SOOZZ, Goldenrod spp. WEED 4; GERCA, Carolina Geranium WEED 5; VICZZ, Vetch spp. WEED 6; , Oxalis spp. Seedhead -- --- 2 in. Rosette 6 in. 6 in. 2 in. C Seedhead Seedhead ---- TRIAL COMMENTS Snapshot TG applied with Ortho rotary spreader. No injury to Juniper on 4-4-95. Goldenrod present on site. On 8-29-95, experiment site had very poor cover of mulch. Sheet erosion occuring in several spots. Goldenrod removed by DOT personnel on 9-10-95. Herbicides applied to same plots on 9-13-94, 2-24-95, and 9-20-95. 195 WINTER ANNUAL WEED CONTROL IN GA DOT ORNAMENTALS TREATMENT NO NAME FORMUL RATE Ib/ai DS AMNT GROWTH STAGE VETCH %CONrROL 4-2-96 CAROLINA GERANIUM %CONrROL 4-2-96 1 Surflan FL 4.0 2.25 PRE 85 95 2 Gallery DF 75% 0.75 PRE 82 85 3 Surflan FL 4.0 3.0 PRE 83 83 4 Gallery DF 75% 1.0 PRE 67 70 5 Surflan FL 4.0 2.25 PRE 73 85 Gallery 75% 0.75 PRE 6 Surllan FL 4.0 3.0 PRE 58 58 Gallery DF 75% 1.0 PRE 7 Snapshot DF 80% 3.0 PRE 78 80 8 Snapshot DF 80% 4.0 PRE 82 88 9 Snapshot GR 2.5% 3.75 PRE 88 93 10 Snapshot GR 2.5% 5.0 PRE 90 92 11 Untreated check 0 0 LSD 20 16 196 i'llili_~. . .tf1&'1I1 Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMAnON Dr. Tim R. Murphy Extension Weed Scientist, UGA Hwy. 341, Spalding County, GA WEEDS I CROPS 1 PLOT WIDTH x LENGTH STUDY DESIGN REPLICATIONS INITIATION COMMENTS CROP AND WEED DESCRIPTION BAYER CODE, COMMONNAME CYPES, Yellow Nutsedge COMMONNAME Holly, Clarissa, Planted 10-1-94, 2 years old, 4 ft. Centers, Bed on centers. 12ftx24ft Randomized Complete Block (RCBD) 3 Plot size is 4 Hollies wide by 6 Hollies deep. 0.5 in. old pine straw mulch. Hand weeded in August, 1996. No winter weeds. APPLICATION DATE TIME OF DAY METHOD TIMING AIR TEMP.,F WIND VELOCITY, MPH DEW PRESENCE, YES/NO SOIL TEMP., F SOIL MOISTURE CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION APPLICATION INFORMATION A 9-18-96 11:00 am Broadcast Pre 74 5 No 71 Good 0 Backpack 20 Flat fan, 8004, 19 inch Spacing 197 BOOM INFORMAnON GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION CROP 1; Clarissa Holly APPLICATION INFORMATION 6.5 foot Length. 20 inch Height 3 Water 2S CO2 CROP STAGE AT EACH APPLICATION A 23 - 2S inch Diameter, 18 inch Height WEED STAGE AT EACH APPLICATION APPLICATION A WEED 1; CYPES, YeUow Nutsedge 3 inch clip by weedeater 198 (970RNAM2) University of GA Coop Ext Service EFFECT OF FALL PRE EMERGENCE HERBICIDES ON YELLOW NUTSEDGE IN ORNAMENTALS Trial 10: 970RNAM2 Location: METRO-ATLANTA Investigator: TIM MURPHY Study Dir.: Tim R Murphy Weed Code Crop Code Part Rated Rating Data Type Rating Unit Rating Date Trt-Eval Interval CYPES HOLLY HOLLY HOLLY HOLLY FOLIAG FOLIAG FOLIAG INJURY INJURY INJURY INJURY CON1ROL 0-100 0-100 0-100 0-100 0-100 10-15-96 01-06-97 03-04-97 05-01-97 05-01-97 27 DA-A 110 DA-A 167 DA-A 225 DA-A 225 DA-A Trt Treatment Form Fm Rate Grow No. Name Amt Ds Rate Unit Stg 1 SULFENTRAZONE 2 SULFENTRAZONE 3 METOLACm..OR 4 METOLACm..OR 5 UNTREATED CHECK 75 DF 0.25 LB AlA PRE Oa 75 DF 0.375 LB AlA PRE Oa 7.8 EC 1.95 LB AlA PRE a 7.8 EC 3.90 LB AlA PRE Oa a aa Oa a Oa Oa a Oa a Oa Oa Oa Oa Oa a 13bc 67 a 53 ab lOc Oc I_LS_D...;,.{P_=_.05..;,.} .....a...._---'0.01_ _0.0...1...._ _0_.01_ _o.-"'01_ _41-J.21 Means followed by same letter do not significantly differ (p=.05, Duncan's New MRT) AOV Means Table Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist, UGA I-285/I-75 S, Atlanta.. GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMON NAME 1 SONOL, Annual Sowthistle 2 LACSE, Prickly Lettuce 3 CYPES, Yellow Nutsedge 4 ERIZZ, Fleabane spp. CROPS COMMONNAME 1 Holly, Clarissa, Planted 10-1-94, 2 years old, 4 ft. Spacing, Bed on centers PLOT WIDTH x LENGTH 12 ft x 24 ft STUDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 INITIATION COMMENTS Plant 4 Hollies wide by 6 Hollies deep. Site had 0.5 inch old pine straw mulch. Hand weeded August, 1996. 40% ground cover by mulch. APPLICATION DATE TIME OF DAY METHOD TIMING AIR TEMP.,F RELATIVE HUMIDITY % WIND VELOCITY, MPH DE1Y I:RESENCE, YESINO SOIL TEMP.,F SOIL MOISTURE APPLICATION INFORMATION A 9-18-96 9:30 am Broadcast Pre 74 50 5 No 71 Good B 1-6-97 9:00 am Broadcast Pre 45 5 No 48 Wet 200 APPLICATION CLOUD COVER % EQUIPMENT OPERATING PSI NOZZLE INFORMATION BOOM INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPLICATION CROP 1; Clarissa Holly APPLICATION INFORMATION A B 0 80 Backpack 24 Flat fan. 8004, 20 inch Spacing 6.5 foot Length, 20 inch Height 3 Water 25 CO 2 CROP STAGE AT EACH APPLICATION A B 23 - 25 in. Diameter, 18 in. Height 23 - 25 in. Diameter, 18 in. Height TRIAL COMMENTS 9-18-96: No winter weeds emerged. Test site hand weeded approximately two weeks prior to treatments. 10-15-96: No weeds tb rate. Plot 110 some stunted and dead, but not related to treatment. 1-6-97: Not able to rate weeds due to low density. Moderate to severe sheet erosion had washed 60% of pine straw mulch from site. 3-4-97: No injury to Clarissa Holly. Weeds (wild lettuce, carolina geranium, annual sowthistle, some evening primrose) very erratic and spotty. 201 (970RNAMl) University ofGA Coop Ext Service EFFICACY OF FALL + WINTER PREEMERGENCE HERBICIDES FOR WINTER WEED CONTROL IN ROADSIDE ORNAMENTALS Trial ID: 970RNAM1 Investigator: TIM R. MURPHY Location: METRO-ATLANTA Study Dir.: Tim R Murphy AOV Means Table Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval SONOL LACSE CYPES ERIZZ HOLLY HOLLY . HOLLY HOLLY INJURY INJURY INJURY INJURY CONTOL CONTOL CONTOL CONTOL 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 10-15-96 01-06-97 03-04-97 05-01-97 05-01-97 05-01-97 05-01-97 05-01-97 27 DA-A 110 DA-A 110 DA-A 225 DA-A 225 DA-A 225 DA-A 225 DA-A 225 DA-A Trt Treatment Fonn Fm Rate Grow No. Name Amt Ds Rate Unit Stg 1 SURFLANFL 4F 4.0 LB AlA SEPT. oa Oa Oa Oa 23 b 80 a Oa 37 cd 2 GALLERY 75 DF 1.0 LB AlA SEPT. Oa Oa Oa oa 83 a 100 a o a 80 abe 3 PRINCEP 4FL 4F 3.0 LB AlA SEPT. oa Oa Oa oa 93 a 93 a o a 63 abe 4 SURFLANFL 4F 4.0 LB AlA SEPT. oa oa Oa Oa 80 a 97 a Oa 80 abe No N GALLERY 75 DF 1.0 LB AlA SEPT. 5 SURFLANFL 4F 4.0 LB AlA SEPT. oa Oa Oa oa 97 a 98 a Oa 63 abe PRINCEP4FL 4F 3.0 LB AlA SEPT. 6 UNTREATED CHECK Oa oa Oa Oa ob Ob o a od 7 SURFLANFL 4F 4.0 LB AlA SEPT+JAN Oa Oa Oa oa 97 a 87 a o a 100 a 8 GALLERY 75 DF 1.0 LB AlA SEPT+JAN o a Oa Oa oa 87 a 100 a Oa 92 ab 9 PRINCEP 4FL 4F 3.0 LB AlA SEPT+JAN o a oa Oa Oa 100 a 100 a o a 93 ab 10 SURFLAN FL 4F 4.0 LB AlA SEPT+JAN o a oa oa Oa 98 a 100 a o a 50 be GALLERY 75 DF 1.0 LB AlA SEPT+JAN 11 SURFLAN FL 4F 4.0 LB AlA SEPT+JAN o a Oa Oa Oa 98 a 100 a o a 100 a PRINCEP4FL 4F 3.0 LB AlA SEPT+JAN 12 UNTREATED CHECK Oa oa Oa oa Ob Ob oa Od ILSD (P=.05) 0.01 0.01 0.01 0.01 \ 17.51 0.01 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) .. } j j II't i_ial.I~I~ll Site Description STUDY DIRECTOR TITLE TRIAL LOCATION GENERAL TRIAL INFORMATION Dr. Tim R. Murphy Extension Weed Scientist, UGA 1-285/I-75 South, Atlanta, GA CROP AND WEED DESCRIPTION WEEDS BAYER CODE, COMMONNAME I VICSA, Common Vetch 2 GERCA, Carolina Geranium 3 LACSE, Prickly Lettuce 4 CYPES, Yellow Nutsedge CROPS CODE, COMMONNAME 1 HOLLY, Holly, Clarissa, 2 years old PLOT WIDTH x LENGTH 12ftx24ft STUDY DESIGN Randomized Complete Block (RCBD) REPLICATIONS 3 INITIATION COMMENTS Roundup spot treated in the summer. APPLICAnON DATE TIME OF DAY METHOD APPLICATION PLACEMENT TIMING AIR TEMP.,F WIND VELOCITY, MPH SOIL TEMP., F SOIL MOISTURE CLOUD COVER % APPLICATION INFORMATION A 9-18-96 10:00 am Broadcast Ground Pre 74 5 71 Wet 0 203 EQUIPMENT OPERATING PSI NOZZLE INFORMATION GROUND SPEED, MPH CARRIER SPRAY VOLUME, GPA PROPELLANT APPUCATION INFORMATION Backpack 20 Flat fan, 8004/3 3 Water 25 CO2 204 (DOTPRE4) University of GA Coop Ext Service FALL PREEMERGENCE HERBICIDE COMBINATIONS FOR ROADSIDE ORNAMENTALS AOV Means Table Trial 10: DOTPRE4 Investigator: TIM R. MURPHY Location: 1-285/75 S ATLANTA StUdy Dir.: Tim R Murphy Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eval Interval VlCSA GERCA VlCSA GERCA LACSE HOLLY HOLLY HOLLY HOLLY INJURY INJURY CONTROL CONTROL INJURY CONTROL CONTROL CONTROL INJURY 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 0-100 10-15-96 01-06-97 01-06-97 01-06-97 03-04-97 03-04-97 03-04-97 03-04-97 05-01-97 27DA-A 110 DA-A 1l0DA-A 110 DA-A 167 DA-A 167 DA-A 167 DA-A 167 DA-A 225 DA-A Trt Treatment No. Name Fonn Fm Rate Grow Amt Ds Rate Unit Stg 1 PRINCEP SURFLAN 4.0 FL 3.0 LB AlA PRE Oa Oa 4.0 FL 4.0 LB AlA PRE 78 be 100 a Oa 83 be 100 a 100 a Oa 2 PRINCEP ENDURANCE 4.0 FL 3.0 LB AlA PRE Oa Oa .65 DG 1.5 LB AlA PRE 92 abe 100 a a 93 ab 100 a 100 a Oa 3 PRINCEP PENDULUM 4.0 FL 3.0 LB AlA PRE Oa Oa 3.3 EC 4.0 LB AlA PRE 77 c 100 a a 73 c 100 a 100 a Oa If') o N 4 PRINCEP GALLERY 4.0 FL 3.0 LB AlA PRE a Oa 98 a 100 a Oa 99 a 100 a 100 a Oa .75 DF 1.0 LB AlA PRE 5 GALLERY .75 DF 1.0 LB AlA PRE o a Oa 97 ab 98 a Oa 86 be 97 a 100 a Oa SURFLAN 4.0 FL 4.0 LB AlA PRE 6 GALLERY ENDURANCE .75 DF 1.0 LB AlA PRE Oa Oa 90 abe 100 a a 99 a 100 a 100 a Oa .65 DG 1.5 LB AlA PRE 7 GALLERY .75 DF 1.0 LB AlA PRE Oa Oa 97 ab 100 a oa 99 a 100 a 100 a Oa PENDULUM 3.3 EC 4.0 LB AIA PRE 8 UNTREATED CHECK oa Oa Od Ob Oa Od Ob Ob Oa I_LS_D....:.(P_=_.05...;..) ----'I--_o_.o..&-I_ _o_.0.L.1_ _1_7.8-L1_ _I-J.81L-_ _0.-\01_ _1l_.9.L..1_ _ 3.61_ _0_.01.-1_ _.....01.1 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) (DOTPRE4) University of GA Coop Ext Service Weed Code Crop Code Rating Data Type Rating Unit Rating Date Trt-Eva! Interval VICSA GERCA LACSE CYFES CONTROL CONTROL CONTROL CONTROL 0-100 0-100 0-100 0-100 05-01-97 05-01-97 05-01-97 05-01-97 225 DA-A 225 DA-A 225 DA-A 225 DA-A Trt Treatment No. Name I PRINCEP SURFLAN 2 PRINCEP ENDURANCE Fonn Fm Rate Grow Amt Ds Rate Unit Stg 4.0 FL 3.0 LBNA PRE 57 a 100 a 100 a oa 4.0 FL 4.0 LBNA PRE 4.0 FL 3.0 LBNA PRE 90 a 100 a 97 a oa .65 DG 1.5 LB NA PRE 3 PRINCEP 4.0 FL 3.0 LBNA PRE 70 a 100 a 93 a Oa PENDULUM 3.3 EC 4.0 LBNA PRE 4 PRINCEP 4.0 FL 3.0 LBNA PRE 100 a 100 a 100 a oa GALLERY .75 DF 1.0 LBNA PRE 5 GALLERY .75 DF 1.0 LBNA PRE 78 a 93 a 100 a oa SURFLAN 4.0 FL 4.0 LBNA PRE 6 GALLERY .75 DF 1.0 LBNA PRE 83 a 97 a 100 a oa ENDURANCE .65 DG 1.5 LBNA PRE 7 GALLERY .75DF 1.0 LB NA PRE 93 a 100 a 97 a oa PENDULUM 3.3 EC 4.0 LBNA PRE 8 UNTREATED CHECK Ob ob Ob Oa I....;.LS_D....;,(P_=_.0...;.5) 39_.01_ _7_.5.L..1_ _8'-711._ _0_0.1 Means followed by same letter do not significantly differ (P=.05, Duncan's New MRT) AOV Means Table o~ N