2015
Understanding glyphosate resistance in common waterhemp and Palmer amaranth
Contributor/Checkoff:
Category:
Sustainable Production
Keywords:
AgricultureCrop protectionHerbicide
Lead Principal Investigator:
Bill Johnson, Purdue University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

Glyphosate-resistant weeds such as waterhemp and Palmer amaranth are on the rise in the Midwest. It is imperative to understand how they develop glyphosate resistance, and find alternative methods for their control. Research has shown that glyphosate efficacy is affected by resistance to soil microbes and this role of microbes is striking. In the absence of key soil microbes, the efficacy of glyphosate can be reduced by an order of magnitude. Project objectives include efforts to manage glyphosate resistance by understanding the link among glyphosate activity, soil microbial activity and resistance; perform field tests and hold field days demonstrating practical management options for glyphosate resistant weeds.

Key Benefactors:
farmers, agronomists, ag retailers, applicators, extension specialists

Information And Results
Project Deliverables

Final Project Results

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.