Slide Presentation

TITLE    (click title to view slides)
Weed Control in Peanuts - 2000

AUTHOR
Dr. Eric P. Prostko
Extension Weed Specialist
University of Georgia
Tifton, GA

DOWNLOAD
• Slide Presentation (PowerPoint, 4.6 MB)

TABLE OF CONTENTS
  1. Weed Control in Peanuts - 2000
  2. Top 10 Most Troublesome Weeds in Georgia Peanuts
  3. Peanut Weed Control Methods
  4. When do those weeds need to be controlled??
  5. Weed Competition in Peanuts - I.Critical Periods (weeks)
  6. Weed Competition in Peanuts - II.Critical Periods (weeks)
  7. Peanut Weed Control: Herbicide Selection Based Upon...
  8. Peanut Weed Control: Soil-Applied Herbicides
  9. Prowl and Sonalan Label Changes for 2000
  10. Preplant Incorporated vs. Preemergence
  11. Herbicide Incorporation
  12. Do you need a soil applied herbicide???
  13. Peanut Yield With/Without PPI Herbicides (PPI)
  14. Peanut Weed Control: Postemergence Herbicides
  15. Why didn’t my postemergence herbicide work??
  16. Weed Control - Postemergence: Keys to Success
  17. The influence of additives on sicklepod control with Cadre - 68 DAT
  18. Nozzle Selection
  19. Cadre Rotational Concerns
  20. Florida Beggarweed Control
  21. Peanut Weed Control: Strip Tillage
  22. New Options For Weed Management in Peanuts
  23. Spartan 75DF or 4L
  24. Strongarm 84WDG
  25. Valor 50WDG
  26. Crop Rotation Restrictions - I.(months)
  27. Crop Rotation Restrictions - II.(months)
  28. Florida Beggarweed Control
  29. Yellow Nutsedge Control
  30. Tropic Croton Control
  31. Bristly Starbur Control
  32. Wild Poinsettia Control
  33. Hophornbeam Copperleaf Stand Reduction - 31 DAP
  34. Summary: New Products
  35. University of Georgia Weed Science



SLIDE CONTENTS
  1. PPT Slide WEED CONTROL IN PEANUTS 2000 Dr. Eric P. Prostko Extension Weed Specialist Department of Crop & Soil Sciences University of Georgia Tifton
  2. Top 10 Most Troublesome Weeds in Georgia Peanuts Fla. Beggarweed nutsedge tropic croton sicklepod Texas panicum bristly starbur morningglories wild poinsettia citronmelon pigweeds
  3. Peanut Weed Control Methods cultural mechanical chemical
  4. When do those weeds need to be controlled??
  5. Weed Competition in Peanuts - I Critical Periods (weeks)
  6. Weed Competition in Peanuts - II Critical Periods (weeks)
  7. Peanut Weed Control Herbicide Selection Based Upon... weed problems rotational crops cost/A
  8. Peanut Weed Control Soil-Applied Herbicides Dual Frontier Lasso Prowl Pursuit Sonalan Vernam (?) Zorial
  9. Prowl and Sonalan Label Changes for 2000 can now be applied PRE after planting but before emergence must be irrigated within 48 hours * Prowl: 0.75” * Sonalan: 0.5-1.0”
  10. Preplant Incorporated vs. Preemergence W.C. Johnson, III 1997-99
  11. Herbicide Incorporation herbicide in upper 2” operating depth (4”) Roterra/power tiller tandem disk - 2X * perpendicular, angle field cultivator - 2X * angle only irrigation
  12. Do you need a soil applied herbicide???
  13. Peanut Yield With/Without PPI Herbicides (PPI) TAES, Yoakum, 1997 LSD 0.05 = 579
  14. Peanut Weed Control Postemergence Herbicides Basagran Blazer Cadre Classic Poast Plus Pursuit Select Starfire Storm Tough 2,4-DB
  15. Why didn’t my postemergence herbicide work??
  16. Weed Control - Postemergence Keys to Success calibration timing, timing, timing additives nozzle selection growing conditions
  17. The influence of additives on sicklepod control with Cadre - 68 DAT A. S. Culpepper, 1999 LSD 0.05 = 5
  18. Nozzle Selection
  19. Cadre Rotational Concerns 18 month cotton rotation dry weather at time of application very important injury as low as 1.8 ppb crop recovery??
  20. Florida Beggarweed Control Zorial - PRE Starfire + Storm or Basagran - CRACK Tough + 2,4-DB - EPOST (3”) Cadre - EPOST (2”) Classic - LPOST (10”) new products
  21. Peanut Weed Control Strip Tillage knockdown * Roundup * Gramoxone * 2,4-D ?? residuals postemergence rainfall/irrigation
  22. New Options For Weed Management in Peanuts Spartan Strongarm Valor
  23. Spartan 75DF or 4L FMC introduced in 1991 sulfentrazone triazolinone family PPO oxidase inhibitor PPI or PRE 5.3 ozs/A (DF) or 8 ozs/A (4L)
  24. Strongarm 84WDG Dow AgroSciences introduced in 1995 diclosulam sulfonanilide family ALS/AHAS inhibitor PPI or PRE 0.45 oz/A
  25. Valor 50WDG Valent introduced in 1989 flumioxazin N-phenylphthalimide derivative PPO oxidase inhibitor PRE 2-3 ozs/A
  26. Crop Rotation Restrictions - I (months)
  27. Crop Rotation Restrictions - II (months)
  28. Florida Beggarweed Control
  29. Yellow Nutsedge Control
  30. Tropic Croton Control
  31. Bristly Starbur Control
  32. Wild Poinsettia Control
  33. Hophornbeam Copperleaf Stand Reduction - 31 DAP Erath County, TX 1999 Includes Sonalan at 2 pts/A - PPI
  34. Summary New Products crop safety concerns new products will help control many weeds in peanuts rotational concerns When will they be labeled??? How much will they cost??
  35. PPT Slide University of Georgia Weed Science