Slide Presentation

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AUTHOR
Eric P. Prostko
Professor and Extension Weed Specialist
University of Georgia

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TABLE OF CONTENTS
  1. Herbicide Drift Symptomology
  2. What is pesticide drift??
  3. Common Causes of Drift (My Opinion)
  4. Percentage of Time Wind Speed is <10 MPH During the Day
  5. My Approach
  6. Herbicide Injury or Something Else?
  7. Herbicide Injury??
  8. Herbicide Injury or Fertilizer Injury?
  9. Roundup Drift?
  10. Roundup Drift or LCB??
  11. Herbicide Injury?
  12. Herbicide Injury or Soil pH/Zn?
  13. Herbicide Injury or Soil Fertility
  14. Herbicide Injury or Soil Fertility
  15. Drift or Potassium?
  16. Herbicide Injury??
  17. Herbicide Injury or Disease?
  18. Most Common Drift Problems
  19. Glyphosate
  20. Glyphosate
  21. Glyphosate
  22. Peach - NCSU
  23. Vegetable Sensitivity to Glyphosate
  24. Tomato
  25. Glyphosate
  26. Liberty (glufosinate)
  27. Liberty (glufosinate)
  28. Liberty (glufosinate)
  29. Liberty (glufosinate)
  30. Liberty (glufosinate)
  31. Paraquat
  32. Paraquat
  33. Paraquat
  34. Blackberry
  35. Pecan
  36. Paraquat
  37. Growth Regulators (2,4-D, dicamba, triclopyr, picloram, etc.)
  38. dicamba
  39. 2,4-D
  40. picloram
  41. dicamba
  42. dicamba
  43. 2,4-D
  44. 2,4-D
  45. 2,4-D
  46. Oak Tree
  47. Vegetables sensitivity to Phenoxys is high
  48. Phenoxys
  49. Phenoxys
  50. Phenoxys
  51. Aim (carfentrazone)
  52. Strawberry
  53. Valor (flumioxazin)
  54. Valor
  55. Staple (pyrithiobac)
  56. Staple
  57. Staple
  58. Staple
  59. Halex GT/Callisto (mesotrione)
  60. mesotrione
  61. Command (clomazone)
  62. What is our role in a drift complaint?
  63. Questions?



SLIDE CONTENTS
  1. Herbicide Drift Symptomology Eric P. Prostko, Ph.D. Professor and Extension Weed Specialist Department of Crop & Soil Sciences
  2. What is pesticide drift?? the movement of the pesticide away from the target area. physical drift vapor drift
  3. Common Causes of Drift (My Opinion) Too windy Boom heights too high Tractor (Warp) speeds Nozzle selection
  4. My Approach Obvious or not? Patterns Crop history Things you can easily prove or rule out pH Fertility nematodes
  5. Herbicide Injury or Something Else?
  6. Herbicide Injury??
  7. Herbicide Injury or Fertilizer Injury? Phosphite Fertilizer
  8. Roundup Drift?
  9. Roundup Drift or LCB??
  10. Herbicide Injury?
  11. Herbicide Injury or Soil pH/Zn? July 2007 pH = 5.04 Zn = 14-17 lbs/a
  12. Herbicide Injury or Soil Fertility
  13. Herbicide Injury or Soil Fertility Old Pasture, no fertilizer was applied, medium soil test K (40 lbs/A) but K deficient (was 0.34% should be 1.7-3.0%) leaf sample
  14. Drift or Potassium?
  15. Herbicide Injury?? Johnson County August 2010
  16. Herbicide Injury or Disease? Johnson County August 2010 Anthracnose
  17. Most Common Drift Problems
  18. Glyphosate
  19. Peach - NCSU
  20. Vegetable Sensitivity to Glyphosate
  21. Tomato NCSU/Ontario Ministry of Ag
  22. Erick Larson - MSU
  23. Liberty (glufosinate)
  24. Paraquat
  25. Blackberry - NCSU
  26. Pecan Lenny Wells (UGA)
  27. Growth Regulators (2,4-D, dicamba, triclopyr, picloram, etc.)
  28. dicamba
  29. 2,4-D
  30. picloram
  31. dicamba
  32. dicamba
  33. 2,4-D (P. Dotray, Texas Tech)
  34. Oak Tree - Bill Vencill - UGA
  35. Vegetables sensitivity to Phenoxys is high
  36. Aim (carfentrazone)
  37. Strawberry Univ. of California
  38. Valor (flumioxazin)
  39. Staple (pyrithiobac)
  40. Halex GT/Callisto (mesotrione) Halex GT
  41. mesotrione
  42. Command (clomazone)
  43. What is our role in a drift complaint? UGA Identification Effects/outcome Education GDA Samples Enforcement Litigation???
  44. Questions? www.gaweed.com