Slide Presentation

TITLE    (click title to view slides)
2004 Cotton Production Workshop

AUTHOR
Dr. Stanley Culpepper
Extension Weed Specialist
University of Georgia
Tifton, GA

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TABLE OF CONTENTS
  1. 2004 Cotton Production Workshop
  2. Topics Covered
  3. UGA Recommended Burndown Program
  4. Primrose Response to 2,4-D Amine. Five Loc in GA & NC. 2003 and 2004.
  5. Primrose Response to 2,4-D Amine. Tifton, GA 2003.
  6. Changes for Burndown in 2005
  7. Changes for Burndown in 2005
  8. When and how should I put my preplant residual herbicides out prior to strip till planting cotton?
  9. Fertilizer Impregnation Experiment
  10. Fertilizer- herbicide impregnation study - wheat cover fall ‘03
  11. Florida pusley - 24 DAP
  12. Florida pusley - 24 DAP
  13. Florida pusley - 24 DAP
  14. Florida pusley - 24 DAP
  15. Florida pusley - 24 DAP
  16. Fertilizer Impregnation Experiment
  17. Can I plant into green weeds as long as I spray Gramoxone or Roundup when I plant?
  18. Weeds sprayed day of planting vs. Weeds sprayed 2 weeks before planting
  19. Early Season Weed Competition
  20. Early Season Weed Competition. Tifton 2003
  21. Seed Cotton Response to Early Season Weed Competition. Attapulgus, 2004.
  22. RR Flex Seed Cotton LB/A Response to Time of WeatherMax Application.
  23. Bottom Line: Early Season
  24. Managing Florida Pusley
  25. Managing Florida Pusley
  26. Managing Florida Pusley
  27. Managing Florida Pusley
  28. Managing Florida Pusley
  29. Late-season Florida Pusley Control with Roundup/Valor Mixtures.
  30. Morningglory
  31. Liberty Link Cotton
  32. Managing Morningglory in RR
  33. Managing Morningglory in RR
  34. Managing Morningglory in RR
  35. Managing Morningglory in RR
  36. Nutsedge in RR Cotton
  37. Nutsedge in RR Cotton
  38. Managing Palmer in RR
  39. Managing Palmer in RR
  40. Managing Palmer in RR
  41. Managing Palmer in RR
  42. Managing Palmer in RR
  43. Managing Palmer in RR
  44. Managing Palmer in RR
  45. Spiderwort Continues to be a Pain
  46. Confirmed Tropical Spiderwort 2004 Infestation
  47. POST Spiderwort Control
  48. Spiderwort Response to Residual Herbicides. Grady Co, 4 Loc., 2002 & 2003.
  49. Potential Cotton Program at this time?
  50. Tropical Spiderwort Response to Dual Systems at Harvest. Grady, 2004.
  51. Tropical Spiderwort
  52. Tropical Spiderwort
  53. Update on 04 New Products
  54. Major Fits for Liberty Link Technology
  55. LL vs RR Systems
  56. Envoke
  57. Envoke
  58. Rotational Restrictions on Envoke
  59. Sequence Herbicide
  60. Do Not Use Dual PRE on Georgia Soils
  61. Sequence in Cotton
  62. Touchdown vs. Sequence
  63. Cotton Response to Glyphosate + Dual
  64. Generic Metolachlors
  65. Generic Metolachlors
  66. Tropical Spiderwort Response to Dual Magnum and Stalwart.
  67. Tropical Spiderwort Response to Dual Magnum and Stalwart.
  68. Spiderwort Response to Metolachlor Products
  69. Suprend
  70. Valor In-Season Use on Cotton
  71. Valor In-Season Use on Cotton
  72. Cotton Response to Glyphosate/Valor Mixtures Applied in Nitrogen. TyTy, 2004.
  73. Large Morningglory Response to Layby Herbicides.
  74. Late-season Pusley and Beggarweed Control with Roundup/Valor Mixtures.
  75. Roundup Ready Flex Cotton: 2006?
  76. Take Home Points



SLIDE CONTENTS
  1. 2004 Cotton Production Workshop
  2. Topics Covered Burndown Using yellow herbicide in conservation tillage Pigweed control Florida pusley control Spiderwort control Review of 2004 new herbicides
  3. UGA Recommended Burndown Program* Feb/Early March: 0.5 to 1 pt 2,4-D for primrose 1 to 1.5 pt 2,4-D for radish 1.5+ pt 2,4-D for horseweed (resistant?) 2. Follow with non-selective herbicide alone or with residual near planting *2,4-D product is a 4 lb ai/gal
  4. Primrose Response to 2,4-D Amine. Five Loc in GA & NC. 2003 and 2004.
  5. Primrose Response to 2,4-D Amine. Tifton, GA 2003.
  6. Changes for Burndown in 2005 Ignite obtained label Very good on primrose Radish MUST be in full bloom Several other “junk” weeds will escape No plant back issue Excellent morningglory control
  7. Changes for Burndown in 2005 Valor label changed 21 d preplant with 2 oz (strip till)(1”rain) 14 d preplant with 1 oz (strip till)(1”rain) Improves control of radish and primrose Excellent residual for pusley, pigweed, and others if reaches soil and activated Must clean tank after each days use
  8. When and how should I put my preplant residual herbicides out prior to strip till planting cotton???
  9. Fertilizer Impregnation Experiment Prowl 3.3 EC and Prowl H2O 3.8 SC Does sprayed product penetrate residue? Does impregnated fertilizer penetrate residue? Even distribution in the field (spreader)? Activation
  10. Fertilizer- herbicide impregnation study – wheat cover fall ‘03 Comparison of herbicide when applied: Different rates 1.0, 1.5 lb ai/ac Methods Spray fertilizer impregnation Timings 8 wks PRE spray 4 wks PRE spray, fertilizer PRE after planting spray, fertilizer
  11. Florida pusley – 24 DAP % control LSD0.05= 25, nontreated check = 0% Application method
  12. Florida pusley – 24 DAP % control LSD0.05= 25, nontreated check = 0% Application method
  13. Florida pusley – 24 DAP % control LSD0.05= 25, nontreated check = 0% Application method
  14. Florida pusley – 24 DAP % control LSD0.05= 25, nontreated check = 0% Application method
  15. Florida pusley – 24 DAP % control LSD0.05= 25, nontreated check = 0% Application method
  16. Fertilizer Impregnation Experiment Time of application critical Rate of pendimethalin applied important Application method less important in this trial Prowl vs Prowl H20: provided equal control
  17. Can I plant into green weeds as long as I spray Gramoxone or Roundup when I plant?
  18. Weeds Sprayed Day of Planting Weeds Sprayed 2 Weeks Before Planting
  19. Early Season Weed Competition 2 inch Palmer 5 inch Palmer 8 inch Palmer Application Timing
  20. 1 inch none Early Season Weed Competition. Tifton 2003 2152 lb/A 2880 lb/A Controlled all weeds 3 weeks prior to planting. Loss of 23%.
  21. Seed Cotton Response to Early Season Weed Competition. Attapulgus, 2004.
  22. RR Flex Seed Cotton LB/A Response to Time of WeatherMax Application.* Time of initial glyphosate application * Weed control complete after initial application was begun. Waiting till 4.5 leaf was 24% loss. Tifton, GA 2004. 3714 a 2816 c 3564 ab
  23. Bottom Line: Early Season For moderate to severe weed infestations: Activated soil-applied herbicide and glyphosate mixtures at 4 leaf cotton OR 2. Two glyphosate applications prior to 5 leaf cotton. Begin first application at cotyledon to 1 leaf followed by 4 leaf application 10 days later.
  24. Managing Florida Pusley
  25. Managing Florida Pusley X Effective soil applied herbicide: yellow, Cotoran, Direx
  26. Managing Florida Pusley X Effective soil applied herbicide: yellow, Cotoran, Direx If pusley up or escape PRE, 2 applications of glyphosate prior to 5th leaf
  27. Managing Florida Pusley X Effective soil applied herbicide: yellow, Cotoran, Direx If pusley up or escape PRE, 2 applications of glyphosate prior to 5th leaf Dual mixed with glyphosate will provide fair residual control
  28. Managing Florida Pusley X Effective soil applied herbicide: yellow, Cotoran, Direx If pusley up or escape PRE, 2 applications of glyphosate prior to 5th leaf Dual mixed with glyphosate will provide fair residual control Apply Valor, Direx, or Caparol mixtures at layby
  29. Late-season Florida Pusley Control with Roundup/Valor Mixtures.* *Weeds completely killed at layby thus control differences are do to residual. C23-04. % control 77a 61 b
  31. non-treated Liberty Liberty Link Cotton
  32. Managing Moriningglory in RR X Mix Staple with glyphosate applied topical
  33. Managing Moriningglory in RR X Mix Staple with glyphosate applied topical Mix with glyphosate or MSMA at layby a.) Aim, Caparol, Cotoran, Direx, Envoke, ET, Staple, Suprend, Valor b) Aim or Valor for larger morningglory
  34. Managing Moriningglory in RR X Mix Staple with glyphosate applied topical Mix with glyphosate or MSMA at layby a.) Aim, Caparol, Cotoran, Direx, Envoke, ET, Liberty, Staple, Suprend, Valor b) Aim or Valor for larger morningglory 3. Suggest having little residual activity as well a) Cotoran, Direx, Staple, Valor, Suprend, Envoke???
  35. Managing Moriningglory in RR X Mix Staple with glyphosate applied topical Mix with glyphosate or MSMA at layby a.) Aim, Caparol, Cotoran, Direx, Envoke, ET, Liberty, Staple, Suprend, Valor b) Aim or Valor for larger morningglory 3. Suggest having little residual activity as well a) Cotoran, Direx, Staple, Valor, Suprend, Envoke??? 4. Staple or Cotoran behind press wheel
  36. Nutsedge in RR Cotton Glyphosate cot. to 1-leaf Glyphosate 4 to 5-leaf (add Dual?)
  37. Nutsedge in RR Cotton Glyphosate cot. to 1-leaf Glyphosate 4 to 5-leaf (add Dual?) Layby with MSMA mixture, or if large grass glyphosate mixture a. Envoke, Suprend b. Valor Envoke after 5 leaf
  38. Managing Palmer in RR
  39. Managing Palmer in RR Yellow, Cotoran, or Staple at plant
  41. Managing Palmer in RR Yellow, Cotoran, or Staple at plant Dual Magnum or Staple mixed with glyphosate at the 4-5 leaf stage
  42. Touchdown Sequence Early POST application. Attapulgus, 2003.
  43. Managing Palmer in RR Yellow, Cotoran, or Staple at plant Dual Magnum or Staple mixed with glyphosate at the 4-5 leaf stage Caparol, Direx, Staple or Valor at layby
  44. Attapulgus, September 2004
  45. Spiderwort Continues To Be A Pain 1999: not ranked 2001: ninth 2003: number 1 2004: number 1-5
  46. Confirmed Tropical Spiderwort 2004 Infestation Georgia Dept of Ag has confirmed infestations
  47. POST Spiderwort Control X 2,4-D Gramoxone Aim + COC (<4 inch) MSMA mixtures
  48. Spiderwort Response to Residual Herbicides. Grady Co, 4 Loc., 2002 & 2003. % control *Similar results noted with Direx and Caparol in 2003 Dual Mag. 1 pt/A Dual Mag. 1.5 pt/A Cotoran 2-3 pt/A Direx* 2-3 pt/A Valor 2 oz/A Staple 0.8 oz/A 22 to 26 DAT
  49. Potential Cotton Program at this time???? Plant early Plant aggressively growing cultivar (shade soil early) Reduce seed production after other crops!!!!!!! Reduce the alarming rate of spread!!!!!!!! 5. Cotoran PRE (if planting at or near time of emergence) 6. Glyphosate + Dual early POST (Backbone of program) 7. Direx or Valor + MSMA (add Aim if weed bigger than 3 inches) (Dual Magnum could be added with Cotoran, Caparol + MSMA, or glyphosate)
  50. Tropical Spiderwort Response to Dual Systems at Harvest.* Grady, 2004. *Prowl applied PRE over trial. C28-04. % control 76 ab 48 c 66 ab
  52. AIM + COC ET + COC
  53. Update on 04 New Products Liberty Link and Liberty Envoke Sequence Suprend Valor
  54. Moonflower Morningglory Morningglories Vol. Peanut Major Fits for Liberty Link Technology
  55. LL vs RR Systems Focus LL RR Timing flexibility ? Morningglory ? Smartweed ? Hemp sesbania ? Grasses ? Nutsedge ? Pigweeds ? Perennials ? Dayflower X X Florida pusley X X
  56. Great year overall In 2004, significant use pattern of holding down weeds to allow for timely directed application Apply after the 5th leaf stage Still can not mix with Staple, mix NIS only Sicklepod, Ipomoea morningglory, cocklebur, nutsedge May mix with glyphosate and DIRECT at layby Envoke
  58. Rotational Restrictions on Envoke Crop Months Wheat 3 Corn 7 Grain sorghum 7 Peanut 7 Soybean 7 Tobacco 7 Bell pepper 12 Irish potato 12 Others 18
  59. Sequence Herbicide 2004 formulation issues? Solved? 2.5 pt/A use rate to get glyphosate and 1 pt of Dual Magnum
  60. Dual Magnum PRE Do Not Use Dual PRE on Georgia Soils
  61. Sequence in Cotton Post applications on 2 inch cotton up until the 5th leaf reaches size of quarter……… don’t add adjuvants Can direct up until 12 inch cotton; however, glyphosate + Dual Mag. can direct till 80 days prior to harvest
  62. Touchdown Sequence Early POST application. Attapulgus, 2003.
  63. Cotton Response to Glyphosate + Dual* heavy dew no dew *Application with dew applied 7 am. Application without dew applied 11 am.
  64. Generic Metolachlors Several products are available BUT are they as effective??
  65. Generic Metolachlors Several products are available BUT are they as effective??
  66. Tropical Spiderwort Response to Dual Magnum and Stalwart.^
  67. Tropical Spiderwort Response to Dual Magnum and Stalwart.^
  68. Dual Magnum Stalwart 42 DAT Spiderwort Response to Metolachlor Products
  69. Active ingredients: Prometryn (Caparol) 79.3% Trifloxysulfuron-sodium (Envoke) 0.70% 1.0-1.5 lb/A use rate 1.25 Suprend= 0.2 oz Envoke + 2 pts Caparol Application: 8 to10 leaf cotton through lay-by Still need tank mix with MSMA or glyphosate Suprend
  70. Valor In-Season Use on Cotton* Lay-by Application: cotton minimum of 18 inches; minimum of 4 inches of bark; direct to lower 2 inches of bark; do not contact green stem tissue *New label may allow 16 inch cotton 2-3 inches of bark
  71. Valor In-Season Use on Cotton* Use only in tank mixture with glyphosate or MSMA 1 to 2 oz Valor + glyphosate 2 oz Valor + MSMA Add nonionic surfactant (0.25%) unless loaded glyphosate Do not use COC, MSO, or organo-silicone type adjuvants One-hour rainfast No major rotational restrictions of concern?? Clean sprayer and tank after each days use!!
  72. Cotton Response to Glyphosate/Valor Mixtures Applied in Nitrogen. TyTy, 2004.* 26 b 16 a carrier
  73. Large Morningglory Response to Layby Herbicides. 5 DAT. Irwin Co., GA, 2001. *Trial conducted on farm in Irwin County with Gibbs Wilson. UltraMax 1.6 pt + Valor 1 oz Roundup UltraMax 1.6 pt
  74. Late-season Pusley and Beggarweed Control with Roundup/Valor Mixtures.*
  75. Roundup Ready Flex Cotton: 2006? X Higher glyphosate rates Much wider window of application Technology is superb Will we become better or worse managers?? a. Early-season competition? b. Timely in crop applications? c. Proper application procedures? d. Increase likelihood for resistance?
  76. X 2,4-D in burndown program Yellow or Cotoran for pusley Two topical glyphosates if nothing applied at plant Mix Staple or Dual Mag with glyphosate early POST, for most fields MSMA or glyphosate included in all layby applications DO NOT APPLY glyphosate alone at layby, add residual If put Cadre in peanut do not lime soil, if possible Keep the spiderwort OUT!!!!!!!!!!!!!!!!!!!!!!!!!!!! Take Home Points