2020
Strategies to manage waterhemp using new soybean technologies
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Contributor/Checkoff:
Michigan Soybean Committee
Category:
Sustainable Production
Keywords:
AgricultureCrop protectionHerbicide
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Christy Sprague, Michigan State University
Co-Principal Investigators:
Project Code:
2010
Contributing Organization (Checkoff):
Michigan Soybean Committee
$26,825
Institution Funded:
Michigan State University
$26,825
Brief Project Summary:

Each year more and more populations of waterhemp continue to be identified across Michigan. This weed is quickly becoming the #1 weed concern for Michigan soybean farmers. Currently, a majority of the waterhemp populations identified in Michigan are resistant to two herbicide sites of action, glyphosate (Group 9) and the ALS-inhibiting herbicides (Group 2). However, a recent identification of a Group 14 (Flexstar and Cobra)-resistant population in Michigan makes management of this weed a high priority. As waterhemp problems continue to spread throughout Michigan and resistance issues increase, new herbicide-resistant soybean technologies will be needed for effective control. LibertyLink...

Unique Keywords:
#weed control
Information And Results
Project Deliverables

Waterhemp control and soybean injury will be used to rank the various weed control strategies. Since glyphosate- and multiple-resistant waterhemp is still a relatively new problem in Michigan, information from this research will be used to develop updated recommendations based on Michigan data for waterhemp control. This information will be incorporated into our current recommendations for control of herbicide-resistant waterhemp in soybean in our web-based factsheets and in the MSU Weed Control Guide for Field Crops (E0434). We will continue to hold meetings throughout the state to make Michigan soybean growers aware of the issues and the options for management of waterhemp. The awareness from our outreach efforts will continue to be important to identify and manage this troublesome weed.

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.