2018
Investigation of Herbicide Resistance in Waterhemp and Palmer amaranth in Kansas: Survey, Mechanism, and Management
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Contributor/Checkoff:
Kansas Soybean Commission
Category:
Sustainable Production
Keywords:
AgricultureCrop protectionHerbicide
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Vipan Kumar, Kansas State University
Co-Principal Investigators:
Mithila Jugulam, Kansas State University
Dallas Peterson, Kansas State University
Doug Shoup, Kansas State University
Phillip Stahlman, Kansas State University
+3 More
Project Code:
1889
Contributing Organization (Checkoff):
Kansas Soybean Commission
$65,000
Institution Funded:
Kansas State University
$65,000
Brief Project Summary:

Waterhemp and Palmer amaranth evolved multiple resistances to a number of herbicides across the Midwest. This warrants studies to monitor their populations in Kansas for development of glyphosate, 2,4-D, and/or dicamba resistance. A key aspect in predicting the evolutionary trajectory of herbicide resistance is to understand the mechanisms. This research aims to better predict and manage 2,4-D resistance in waterhemp and Palmer amaranth by understanding the level and the mechanism of resistance. This project also aims to investigate various pre-herbicide programs alone or in conjunction with post-glyphosate plus dicamba applications for controlling glyphosate-resistant Palmer amaranth in Roundup Ready 2 Xtend soybeans.

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

Information And Results
Project Deliverables

Increased awareness and implementation of resistance management programs will be needed to manage and prevent further spread of herbicide-resistant (HR) waterhemp and Palmer amaranth in Kansas soybeans. Based on this research, we will deliver extension and education programs to Kansas soybean growers on “best management practices (BMPs)” for management and containment of HR waterhemp and Palmer amaranth. Findings and recommendations will be presented during KSU Research Center Field Days and grower meetings across Kansas. The findings of this research will be available to the growers through extension publications, field research reports, and peer reviewed journal articles. Annual reports will also be posted at our web sites including the KSU Ag Research Center (http://www.hays.k-state.edu).

Final Project Results

Update:

View uploaded report PDF file

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.