Slide Presentation

TITLE    (click title to view slides)
Peanut Response to Forestry Herbicides

AUTHOR
Chad Abbott

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

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TABLE OF CONTENTS
  1. Peanut Response to Forestry Herbicides
  2. Overview
  3. 11,076,600 ac in pine production
  4. Extension Calls.. Accidents Happen
  5. Garlon 3A / Arsenal PowerLine
  6. Peanut Response to PRE Applied Garlon 3AS
  7. Peanut Response to Garlon 3A Applied @ 30 DAP - 2 DAT
  8. Peanut Response to Garlon 3A Applied 28 DAP - July 2; 66 DAP
  9. Peanut Response to Garlon 3A Applied 28 DAP - July 23; 87 DAP
  10. Peanut Response to Garlon 3A @ 32 oz/A Applied 56 DAP - June 25; 3 DAT
  11. Peanut Response to Garlon 3A @ 32 oz/A
  12. Yield
  13. Yield Loss
  14. Garlon 3A - Summary
  15. Peanut Response PRE Applied Arsenal Powerline 2AS - May 14; 17 DAP
  16. Peanut Response to Arsenal Powerline 2AS Applied PRE - 29 DAT
  17. Peanut Response to Arsenal Powerline 2AS Applied 28 DAP
  18. Peanut Response to Arsenal Powerline 2AS @ 24 oz/A - July 27; 91 DAP
  19. Peanut Response to Arsenal Powerline 2AS @ 24 oz/A - August 17; 112 DAP
  20. Peanut Response to Arsenal Powerline 2AS @ 24 oz/A Applied 56 DAP
  21. Peanut Response to Arsenal Powerline 2AS @ 24 oz/A - Sept 2; 128 DAP
  22. Yield
  23. Yield Loss
  24. Arsenal PowerLine Summary
  25. Thank You! Questions?



SLIDE CONTENTS
  1. Peanut Response to Forestry Herbicides ccabbott@uga.edu Chad Abbott Dr. Eric Prostko
  2. Overview Introduction of Pines and Peanuts Herbicides and Trial Layout Results Conclusion
  3. 11,076,600 ac in pine production 4,145,200 ac in natural 6,931,400 ac in planted 67% in loblolly/shortleaf 33% in longleaf/slash Lumber, pulp, telephone poles, straw, toiletries, cleaning products Source: Brandeis, Thomas J.; McCollum, Joe; Hartsell, Andy; Brandeis, Consuelo; Rose, Anita K.; Oswalt, Sonja N.; Vogt, James T. (JT); Marcano-Vega, Humfredo. 2016. Georgia's Forests, 2014. Resource Bulletin SRS-209. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 78 p. Georgia Pines 810,000 ac planted 800,000 harvested Averaged 4,500 lbs/A 3.6 billion lbs of peanuts in GA Sources: NASS 2020; https://quickstats.nass.usda.gov/results/18D9DF74-F8EE-3E43-BF25-4B2E6F24E512 Peanuts LOTS OF INTERFACE BETWEEN PINE TREES AND PEANUT FIELDS
  4. Extension Calls.. Accidents Happen Peanut Field Surrounded by Pine Trees – Bulloch Co? (July 2020)? Aerial applications: Site prep; HWC; Woody Release; MRBC; Poured into irrigation ponds
  5. DOW – Triclopyr / Group 4 Rates: 1X = 32 oz/A; 1/10thX = 3.2 oz/A; 1/100thX = 0.32 oz/A; UTC Data Collected: Stand counts; Visual plant stunting; Epinasty %; Plant heights; Plant widths; Chlorosis %; Yield Garlon 3A BASF – Imazapyr / Group 2 Rates: 1X = 24 oz/A; 1/10thX = 2.4 oz/A; 1/100thX = 0.24 oz/A; UTC Data Collected: Stand counts; Visual plant stunting; Chlorosis %; Plant heights; Plant widths; Yield Arsenal PowerLine
  7. May – 27
  8. July – 2; 66 DAP
  9. July – 23; 87 DAP
  10. June – 25; 3 DAT
  11. Sept – 2; 128 DAP
  12. p-value <.0001
  13. p-value <.0001
  14. Garlon 3A - Summary In summary, this is one year of data in one location, under over-head irrigation. Yields could vary widely based on soil type and irrigation capabilities. Yields were not significantly reduced when peanuts were exposed to a rate of 1/10th or less. We will continue to evaluate this data set and research to better understand the effects of Garlon 3A on peanut at various growth stages and at different rates. Garlon 3A Summary
  15. May – 14; 17 DAP
  16. May - 27
  17. July – 2; 66 DAP
  18. July – 27; 91 DAP
  19. August – 17; 112 DAP
  20. August – 17; 112 DAP
  21. Sept – 2; 128 DAP
  22. p-value <.0001
  23. p-value =.0243
  24. Arsenal PowerLine Summary In summary, this is one year of data in one location, under over-head irrigation. Yields could vary widely based on soil type and irrigation capabilities. Yields were not significantly reduced when peanuts were exposed to a rate of 1/100th or less. It seems across these two trials that when peanuts are sprayed at 28 DAP, peanuts were most severely impacted. We will continue to evaluate this data set and research to better understand the effects of Arsenal Powerline on peanut at various growth stages and at different rates.
  25. Thank You! Questions?