Dual nature (IMAGE) University of Delaware Caption In the lab, UD researchers Harsh Bais and Amanda Rosier showed that when UD1022 is introduced to the alfalfa pathogen that causes spring black stem (left), UD1022 acts as an antifungal and inhibits the pathogen’s ability to grow (right). Credit University of Delaware/ Amanda Rosier Usage Restrictions Must credit University of Delaware/ Amanda Rosier 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.