Slide Presentation
TITLE
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Peanut Response to Warrant (Acetochlor)
AUTHOR
Eric P. Prostko
Professor and Extension Weed Specialist
University of Georgia
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TABLE OF CONTENTS
Peanut Response to Warrant (Acetochlor)
U.S. Planted Acres - 2012
The Peanut Weed Control Toolbox - 19 active ingredients
Warrant Herbicide
Microencapsulation
Warrant is not Lasso!!!!
Objective
Materials and Methods I - General
Materials and Methods II - Locations
Materials and Methods III - Treatments
Results
Influence of PPI Treatments on Peanut Yield (lbs/A)
Influence of PRE Treatments on Peanut Yield (lbs/A)
Influence of EPOST Treatments on Peanut Yield (lbs/A)
Influence of POST Treatments on Peanut Yield (lbs/A)
Influence of EPOST Gramoxone/ Storm on Peanut Yield (lbs/A)
Influence of POST Cadre Treatments on Peanut Yield (lbs/A)
Peanut Response to Warrant @ 6 pt/A PPI or PRE
Peanut Response to Warrant @ 6 pt/A EPOST OR POST
Summary
Questions?
SLIDE CONTENTS
Peanut Response to Warrant (Acetochlor) E.P. Prostko*, T.L. Grey, and D.L. Jordan
U.S. Planted Acres – 2012 (X 1000) NASS June 29, 2012
The Peanut Weed Control Toolbox 19 active ingredients PPI/PRE Sonalan Prowl/Pendimax Dual Magnum/Generics Outlook/Propel Pursuit Spartan Charge Solicam Strongarm Valor POST Aim (Harvest Aid) Gramoxone Inteon/Firestorm/Parazone Basagran Ultra Blazer Cadre/Impose Classic Cobra Poast/Poast Plus Pursuit Select/Arrow/Trigger Storm 2,4-DB
tested under experimental MON 63410 capsule suspension formulation (micro-encapsulated) 3CS Acetochlor + safener = Harness or Surpass First mention in literature was in 1970 (A new selective herbicide: MON 097, PROC NCWCC 25:56-59) Currently labeled for use in cotton, soybeans, field corn, grain sorghum MOA = 15 Very long chain fatty acid inhibitor Same MOA as metolachlor (Dual)
Microencapsulation small herbicide particles surrounded by polymer shell suspended in carrier
Warrant is not Lasso!!!!
Objective To evaluate the tolerance of peanut to various applications of Warrant (acetochlor) under weed-free conditions.
Materials and Methods – I General Small-plot techniques Locations (4) Georgia Ty Ty, Plains North Carolina Rocky Mount, Lewiston 4 replications weed-free Irrigated ANOVA LSD (0.05)
Materials and Methods – II Locations *R/B = rip and bed
Materials and Methods – III Treatments PPI, PRE, EPOST, POST Warrant @ 3 or 6 pt/A Dual Magnum @ 1.33 pt/A EPOST Gramoxone Inteon @ 12 oz/A + Storm @ 16 oz/A + Warrant @ 3 pt/A or Dual Magnum @ 1.33 pt/A POST Cadre @ 4 oz/A + Warrant @ 3 pt/A or Dual Magnum @ 1.33 pt/A
Results
Influence of PPI Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = 864
Influence of PRE Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = 864 -7.2%
Influence of EPOST Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = 864
Influence of POST Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = 864 -7.2%, -8.1%
Influence of EPOST Gramoxone/ Storm on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = 864 -9.6%
Influence of POST Cadre Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = 864 -9.7%
Peanut Response to Warrant @ 6 pt/A PPI or PRE Ponder July 25 77 DAP NTC PPI PRE*
Peanut Response to Warrant @ 6 pt/A EPOST OR POST Ponder July 25 77 DAP NTC EPOST (18 DAP) POST (36 DAP)*
Summary No yield loss from any treatment at Plains, Rocky Mount, or Lewiston Significant yield loss at Ponder from …… Warrant @ 6 pt/A – PRE and POST (7.2-7.4%) Dual Magnum @ 1.33 pt/A – POST (8.1%) Gramoxone Inteon + Storm + Dual Magnum – EPOST (9.6%) Cadre + Warrant (3 pt/A) – POST (9.7%)
Questions? www.gaweed.com