Dr. Joshua Yuan, Texas AgriLife Research (IMAGE) Texas A&M AgriLife Communications Caption Dr. Joshua Yuan is a Texas AgriLife Research plant pathologist. Credit Texas AgriLife Research photo by Kathleen Phillips Usage Restrictions Not for resale. Use with credit. 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.