Glyphosate-resistant Palmer amaranth (also known as pigweed) continues to be a major problem for cotton producers across Georgia. Roundup-, Liberty-, or Roundup plus Liberty-based programs are provided in this publication and are developed from years of research. However, keep in mind programs should be adjusted for each farming operation. In addition to these programs, growers share the top six factors that have helped them improve Palmer amaranth control. Programs for dicamba or 2,4-D will be provided on a separate circular when those products receive registration. Generic products are available for Direx, Dual Magnum, Gramoxone, Liberty, Prowl, Reflex, Staple, Treflan and Valor. Read and follow all label requirements.

Status and Revision History
Published on Apr 24, 2009
Published on Mar 24, 2010
Published with Minor Revisions on Feb 04, 2011
Published with Minor Revisions on Jan 31, 2012
Published with Minor Revisions on Feb 13, 2013
Published with Major Revisions on Jan 11, 2016

Stanley Culpepper Professor - Extension Weed Scientist, Crop & Soil Sciences Jeremy Kichler County Extension Coordinator, Southwest District Jenna Clair Smith Research Technician III, Crop & Soil Sciences
Have a question? Contact your local UGA Extension office to find out how our team of county agents can assist you.
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