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AUTHOR
Stanley Culpepper
Professor and Extension Weed Specialist
University of Georgia

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TABLE OF CONTENTS
  1. 2014 Beltwide: Time of Day Influence on Control of Palmer Amaranth by Dicamba Tank Mixes
  2. Managing Off-Target Movement
  3. 2012 Georgia Fruit and Vegetables
  4. Percentage of Time Wind is < 10 MPH
  5. Photo
  6. Liberty Treatments (32 oz/A)
  7. Palmer Control by Liberty System as Influenced by Time of Day
  8. Liberty Application Time of Day; Morning Application; GA
  9. Palmer Control by Liberty as Influenced by Time of Day
  10. Liberty Application Time of Day; Evening Application
  11. Time of Day Influence on 2,4-D
  12. Treatments
  13. Palmer Control by 2,4-D Systems
  14. Palmer Control by RU + 2,4-D Systems
  15. Palmer Control by Liberty Systems
  16. Palmer Control by Liberty + 2,4-D Systems
  17. GR Palmer Control - 2,4-D w/ glyphosate
  18. GR Palmer Control - 2,4-D w/ glufosinate
  19. Palmer Response to Dicamba
  20. Palmer Response to Dicamba
  21. Palmer Control by Dicamba Mixes as Influenced by Time of Day - RU + Clarity
  22. Palmer Control by Dicamba Mixes as Influenced by Time of Day - Liberty + Clarity
  23. Roundup + Clarity - 5:00 AM & 6:30 AM
  24. Roundup + Clarity - 8:00 AM & 9:30 AM
  25. Palmer Control by Liberty as Influenced by Time of Day
  26. Palmer Control by Roundup as Influenced by Time of Day
  27. Palmer Control by Roundup as Influenced by Time of Day - Highly Resistant Population
  28. Roundup WeatherMax
  29. Environmental Conditions Measured
  30. Leaf Closure Prior to Sunrise
  31. Photo
  32. 14C Cooperative Efforts
  33. Questions/Comments



SLIDE CONTENTS
  1. 2014 Beltwide: Time of Day Influence on Control of Palmer Amaranth by Dicamba Tank Mixes Culpepper, Eure, Grey, Fowler
  2. Managing Off-Target Movement
  3. 2012 Georgia Fruit and Vegetables Approximately 200,000 acres 45 different crops 3rd in U.S. vegetable production acres Farm Gate Value: $1,200,000,000
  4. Percentage of Time Wind is < 10 MPH May 1 June 30, 2012*
  5. Liberty Treatments (32 oz/A) 1 hr before sunrise 6 hr before sunset hr before sunrise 4 hr before sunset At sunrise 2 hr before sunset hr after sunrise 1 hr before sunset 1 hr after sunrise hr before sunset 2 hr after sunrise At sunset 4 hr after sunrise hr after sunset 6 hr after sunrise 1 hr after sunset Study 1: Morning Study 2: Evening
  6. 48 d 34 e 39 de 1 hr before sunrise 66 c Palmer Control by Liberty System as Influenced by Time of Day. Late-Season in GA, LA, MS, NC, TN. Time of Day Liberty was Applied % 93 a 90 ab 82 b 93 a 1/2 hr before sunrise 1 hr after sunrise 2 hr after sunrise 4 hr after sunrise 6 hr after sunrise sunrise 1/2 hr after sunrise *Liberty POST 1 (5 Palmer), Liberty POST 2 (15 d later), Diuron + MSMA layby
  7. Liberty Application Time of Day; Morning Application; GA 2 hr or after
  8. 99 a 99 a 99 a 6 hr before sunset 99 a Palmer Control by Liberty as Influenced by Time of Day. Late-Season in GA and NC. Time of Day Liberty was Applied % 69 c 91 b 97 a 64 c 4 hr before sunset 1/2 hr before sunset sunset 1/2 hr after sunset 1 hr after sunset 2 hr before sunset 1 hr before sunset *Liberty POST 1 (5 Palmer), Liberty POST 2 (18 d later), Diuron + MSMA layby
  9. Time of Day Influence on 2,4-D
  10. Treatments 2,4-D RU + 2,4-D Liberty Liberty + 2,4-D Herbicides 1 AM 7 AM 1 PM 7 PM Time 2,4-D 1 qt/A; Roundup Wmax 1 qt/A; Liberty 29 oz/A
  11. 78 a 41 b 37 b 76 a Palmer Control by 2,4-D Systems. Macon County, 2011 and 2012. Time of Day 2,4-D Applied % 7 PM POST 1 (5-8 Palmer), POST 2 (15 d later), Diuron + MSMA layby 1 PM 7 AM 1 AM
  12. 93 a 32 b 39 b 89 a Palmer Control by RU + 2,4-D Systems. Macon County, 2011 and 2012. Time of Day RU + 2,4-D Applied % 7 PM POST 1 (5-8 Palmer), POST 2 (15 d later), Diuron + MSMA layby 1 PM 7 AM 1 AM
  13. 95 a 25 c 37 b 99 a Palmer Control by Liberty Systems. Macon County, 2011 and 2012. Time of Day Liberty Applied % 7 PM POST 1 (5-8 Palmer), POST 2 (15 d later), Diuron + MSMA layby 1 PM 7 AM 1 AM
  14. 96 a 57 b 93 a 99 a Palmer Control by Liberty + 2,4-D Systems. Macon County, 2011 and 2012. Time of Day Liberty + 2,4-D Applied % 7 PM POST 1 (5-8 Palmer), POST 2 (15 d later), Diuron + MSMA layby 1 PM 7 AM 1 AM
  15. 2,4-D w/ glyphosate fb 2,4-D w/ glyphosate 7 AM 2,4-D w/ glyphosate fb 2,4-D w/ glyphosate 1 PM GR Palmer Control
  16. 2,4-D w/ glufosinate fb 2,4-D w/ glufosinate 7 AM 2,4-D w/ glufosinate fb 2,4-D w/ glufosinate 1 PM GR Palmer Control
  17. Palmer Response to Dicamba Clarity + Roundup Clarity + Liberty Herbicides 5 AM 6:30 AM 8 AM 9:30 AM 11 AM Time Clarity 12 oz; Roundup WMAX 32 oz, Liberty 32 oz
  18. Palmer Response to Dicamba Clarity + Roundup Clarity + Liberty Herbicides 5 AM 6:30 AM 8 AM 9:30 AM 11 AM Time Clarity 12 oz; Roundup WMAX 32 oz, Liberty 32 oz Liberty and WMAX at 5 and 11 AM
  19. 89 a 74 b 72 b 5 AM 90 a Palmer Control by Dicamba Mixes as Influenced by Time of Day. Macon 2013. 20 DAT. Time of Day RU + Clarity Applied % 93 a 6:30 AM 11 AM 8 AM 9:30 AM Palmer: 4 to 7 inch
  20. 89 a 74 b 72 b 5 AM 90 a Palmer Control by Dicamba Mixes as Influenced by Time of Day. Macon 2013. 20 DAT. Time of Day RU + Clarity or Liberty + Clarity Applied % 93 a 6:30 AM 11 AM 8 AM 9:30 AM 59 c 64 c 92 a 94 a 91 a Palmer: 4 to 7 inch
  21. 5:00 AM 6:30 AM Roundup + Clarity
  22. 8:00 AM 9:30 AM Roundup + Clarity
  23. 26 b 5 AM Palmer Control by Liberty as Influenced by Time of Day. Macon 2013. 20 DAT. Time of Day Liberty Applied % 11 AM 84 a Palmer: 4 to 7 inch
  24. 16 b 5 AM Palmer Control by Roundup as Influenced by Time of Day. Macon 2013. 20 DAT. Time of Day Roundup Applied % 11 AM 56 a Palmer: 4 to 7 inch
  25. 16 b 5 AM Palmer Control by Roundup as Influenced by Time of Day. Macon 2013. 20 DAT. % 11 AM 56 a HIGHLY RESISTANT POPULATION Time of Day Roundup Applied Palmer: 4 to 7 inch
  26. 8 AM 11 AM Roundup WeatherMax
  27. Humidity Temperature (air and soil) Moon Sunlight Clouds Leaf orientation Dew (herbicide drip) Soil moisture Environmental Conditions Measured
  28. Leaf Closure Prior to Sunrise
  29. 14C Cooperative Efforts: Bayer : glufosinate Dow : 2,4-D Monsanto: dicamba (results late Jan)
  30. Questions/Comments