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ON-FARM EVALUATION OF LIBERTY LINK AND PHYTOGEN WIDESTRIKE COTTON VARIETIES MANAGED WITH IGNITE BASED HERBICIDE SYSTEMS IN GEORGIA

Applied Research

Bill Tyson
County Extension Coordinator
University of Georgia
Statesboro

Abstract

\r\n Due to the widespread existence of glyphosate-resistant Palmer amaranth, Cotton producers in Georgia have been forced to explore alternative herbicide systems to maintain weed control and maximize cotton yields.  One alternative involves the use of residual herbicides along with topical (POST) applications of glufosinate (Ignite).  These Ignite-based systems have been very effective and can be implemented on Liberty Link® cotton cultivars, which have excellent tolerance to Ignite.  Cotton cultivars with the WideStrike trait also have a gene with tolerance to Ignite; however, tolerance from this trait is less consistent and cotton injury can occur.  Research was conducted in 2010 and 2011 to assess variety performance of both Liberty Link and Phytogen cultivars with the WideStrike trait in on-farm variety trials where Ignite-based herbicide systems were implemented.  In 2010, FM 1773 LLB2, FM1735 LLB2, FM 1845 LLB2, PHY 375 WRF, and PHY 565 WRF were evaluated in four locations.  In 2011, FM 1773 LLB2, FM 1845 LLB2, ST 4145 LLB2, PHY 375 WRF, PHY 565 WRF, PHY 499 WRF, and PHY 367 WRF were evaluated in five locations.  Variety performance, with respect to lint yield and fiber quality, was determined to provide producers with information to make informed decisions on variety selection when implementing an Ignite-based herbicide system. 

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Poster has NOT been presented at any previous NACAA AM/PIC

This poster is being submitted for judging. It will be displayed at the AM/PIC if not selected as a State winner. The abstract will be published in the proceedings.

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Authors: B.L. Cresswell, J.R. Whitaker, G.D. Collins, J.F. Crawford, W.G. Tyson, D.S. Curry, W.L. Harris, G.R. Lee, C.T. Tyson
  1. Cresswell, B. County Agent, University of Georgia, Georgia, 39823
  2. Whitaker, J. Cotton Agronomist, University of Georgia, Georgia, 30460
  3. Collins, G. Cotton Agronomist, University of Georgia, Georgia, 31794
  4. Crawford, J. County Agent, University of Georgia, Georgia, 30434
  5. Tyson, W. County Agent, University of Georgia, Georgia, 31329
  6. Curry, D. County Agent, University of Georgia, Georgia, 31513
  7. Harris, W. County Agent, University of Georgia, Georgia, 30458
  8. Lee, G. County Agent, University of Georgia, Georgia, 31014
  9. Tyson, C. County Agent, University of Georgia, Georgia, 31791