Cover Crop (IMAGE) University of Tennessee Institute of Agriculture Caption In 'Evaluating Cover Crops and Herbicides for Glyphosate Resistant Palmer Amaranth Control in Cotton,' researchers found that grass cover crops, like cereal rye and wheat, provided the best Palmer amaranth control. The paper earned the title 'Most Outstanding Paper in Weed Technology' at the 2017 Weed Science Society of America annual meeting. Credit Ginger Rowsey Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.