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TITLE    (click title to view slides)
A Comparison of Full and Reduced Rate Weed Management Programs in Peanut

AUTHOR
E. P. Prostko  and  T. L. Grey
Dept. of Crop & Soil Sciences
University of Georgia
Tifton

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TABLE OF CONTENTS
  1. A Comparison of Full and Reduced Rate Weed Management Programs in Peanut
  2. The Need for Cheaper Weed Control Strategies
  3. Strongarm/Valor Combinations
  4. OBJECTIVE
  5. Materials and Methods
  6. Results - Crop Injury
  7. Peanut Stunting - 7 DAT - Attapulgus 2003
  8. Peanut Stunting - 14 DAT - Tifton 2003
  9. RESULTS - CONTROL - 2001
  10. Hophornbeam copperleaf control with reduced rates of Strongarm (S) and Valor (V) - 91 DAP
  11. Hophornbeam Copperleaf Control - Randolph County, GA - 2001
  12. RESULTS - CONTROL - 2002
  13. FL Beggarweed control with reduced rates of Strongarm (S) and Valor (V) - 91 DAP
  14. Smallflower morningglory control with reduced rates of Strongarm (S) and Valor (V) - 91 DAP
  15. Common ragweed control with reduced rates of Strongarm (S) and Valor (V) - 91 DAP
  16. Weed control in peanuts with reduced rates of Strongarm and Valor, 2002.
  17. RESULTS - CONTROL - 2003
  18. FL Beggarweed control with reduced rates of Strongarm (S) and Valor (V) - 91 DAP
  19. Annual MG control with reduced rates of Strongarm (S) and Valor (V) - 91 DAP
  20. Reduced Rates of Strongarm and Valor - I
  21. Bristly starbur control with reduced rates of Strongarm (S) and Valor (V) - 91 DAP
  22. Common ragweed control with reduced rates of Strongarm (S) and Valor (V) - 91 DAP
  23. Reduced Rates of Strongarm and Valor - II
  24. Tropical spiderwort control with reduced rates of Strongarm (S) and Valor (V)
  25. RESULTS - YIELD - 2003
  26. Peanut Yield Response to Reduced Rates of Strongarm (S) and Valor (V) - I
  27. Peanut Yield Response to Reduced Rates of Strongarm (S) and Valor (V) - I - fb Cadre (ozs/A)
  28. Peanut Yield Response to Reduced Rates of Strongarm (S) and Valor (V) - II
  29. Peanut Yield Response to Reduced Rates of Strongarm (S) and Valor (V) - II - fb Cadre (ozs/A)
  30. Summary - Reduced Rates
  31. ACKNOWLEDGMENTS



SLIDE CONTENTS
  1. A Comparison of Full and Reduced Rate Weed Management Programs in Peanut E.P. Prostko and T. L. Grey Dept. of Crop & Soil Sciences University of Georgia Tifton SWSS 2004
  2. The Need for Cheaper Weed Control Strategies 34% of cost production for agri-chemicals reduction in support price from $619 to $355
  3. Strongarm/Valor Combinations compliment each other lower rates reduced cost less carryover? less injury different MOA not labeled in 2003
  4. OBJECTIVE to determine if the combination of 0.25X rates of Strongarm + Valor would provide control equivalent to full rates of either applied alone Why? * Strongarm @ 0.45 ozs/A = $16.00 * Valor @ 3 ozs/A = $12.90 * Strongarm (0.113 ozs/A) + Valor (0.75 ozs/A) = $7.23/A
  5. Materials and Methods small plots irrigated fields 3-4 replications 5 trials late-season ratings yield data DNA used for grass control
  6. Results Crop Injury
  7. Peanut Stunting - 7 DAT Attapulgus 2003 LSD 0.05 = 3 (0.45 ozs/A) (3.0 ozs/A) (0.113 + 0.75 ozs/A)
  8. Peanut Stunting - 14 DAT Tifton 2003 LSD 0.05 = 4 (0.45 ozs/A) (3.0 ozs/A) (0.113 + 0.75 ozs/A)
  9. RESULTS - CONTROL 2001
  10. Hophornbeam copperleaf control with reduced rates of Strongarm (S) and Valor (V) 91 DAP PE-14-01 Randolph Co. LSD 0.05 = 13
  11. Hophornbeam Copperleaf Control Randolph County, GA - 2001 6 WAT Untreated Strongarm (0.45 ozs/A) Valor (3 ozs/A) Strongarm 0.113 ozs + Valor 0.75 ozs/A
  12. RESULTS - CONTROL 2002
  13. FL Beggarweed control with reduced rates of Strongarm (S) and Valor (V) 91 DAP PE-09-02 Attapulgus LSD 0.05 = 8
  14. Smallflower morningglory control with reduced rates of Strongarm (S) and Valor (V) 91 DAP PE-09-02 Attapulgus LSD 0.05 = 2
  15. Common ragweed control with reduced rates of Strongarm (S) and Valor (V) 91 DAP PE-09-02 Attapulgus LSD 0.05 = 7
  16. Weed control in peanuts with reduced rates of Strongarm and Valor, 2002. Untreated Strongarm 0.45 oz/A Valor 3 oz/A Strongarm 0.113 oz/A + Valor 0.75 oz/A Attapulgus, GA (7 WAP)
  17. RESULTS - CONTROL 2003
  18. FL Beggarweed control with reduced rates of Strongarm (S) and Valor (V) 91 DAP PE-01A-03 Tifton LSD 0.10 = 5
  19. Annual MG control with reduced rates of Strongarm (S) and Valor (V) 91 DAP PE-01A-03 Tifton LSD 0.10 = 5
  20. Reduced Rates of Strongarm and Valor - I PE-01A-03 91 DAP Untreated Strongarm 0.45 ozs/A Valor 3 ozs/A Strongarm 0.113 ozs/A + Valor 0.75 ozs/A
  21. Bristly starbur control with reduced rates of Strongarm (S) and Valor (V) 91 DAP PE-01B-03 Attapulgus LSD 0.10 = 5
  22. Common ragweed control with reduced rates of Strongarm (S) and Valor (V) 91 DAP PE-01B-03 Attapulgus LSD 0.10 = 20
  23. Reduced Rates of Strongarm and Valor - II PE-01B-03 91 DAP Untreated Strongarm 0.45 ozs/A Valor 3 ozs/A Strongarm 0.113 ozs/A + Valor 0.75 ozs/A
  24. Tropical spiderwort control with reduced rates of Strongarm (S) and Valor (V) PE-24-03 Grady County (LSD 0.05 = 11) (LSD 0.05 = 11) (LSD 0.05 = 15) (LSD 0.05 = 22) (LSD 0.05 = 11)
  25. RESULTS - YIELD 2003
  26. Peanut Yield Response to Reduced Rates of Strongarm (S) and Valor (V) - I PE-01A-03 Tifton LSD 0.10 = 612
  27. Peanut Yield Response to Reduced Rates of Strongarm (S) and Valor (V) - I fb Cadre (ozs/A) PE-01A-03 Tifton LSD 0.10 = 612
  28. Peanut Yield Response to Reduced Rates of Strongarm (S) and Valor (V) - II PE-01B-03 Attapulgus LSD 0.10 = 585
  29. Peanut Yield Response to Reduced Rates of Strongarm (S) and Valor (V) - II fb Cadre (ozs/A) PE-01B-03 Attapulgus LSD 0.10 = 585
  30. Summary Reduced Rates less injurious than Valor at full rate similar weed control except for tropical spiderwort and annual mg when used in total program (pre + post), equivalent yields when compared to full rate programs digging efficiency/weed seed bank concerns?
  31. ACKNOWLEDGMENTS This research was partially funded through a grant provided by the Georgia Agricultural Commodity Commission for Peanuts