Two Approaches for Palmer Amaranth Control: We Need Multiple Approaches
Sustainable Production
AgricultureCrop protectionHerbicide
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Mark VanGessel, University of Delaware
Co-Principal Investigators:
Kurt Vollmer, University of Maryland
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

The noxious weed Palmer amaranth can put up a good fight, as it competes with row crops for nutrients, sunlight and space, causing yield reductions. This research project aims to improve control of this weed and glyphosate-resistant horseweed in no-till fields through cereal rye cover crop management and herbicide applications. Trials compare cereal rye terminated four weeks prior to soybean planting, two weeks before planting, terminated the same day as soybean planting and planting greed for weed suppression. After cover crop termination, postemergence herbicide applications alone and in combination with a residual herbicide will work together to control the weed.

Key Benefactors:
farmers, agronomists, Extension agents

Information And Results
Final Project Results

Updated August 2, 2020:

View uploaded report Word 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.