Awais Khan (IMAGE) Cornell University Caption Awais Khan, professor of plant pathology and plant-microbe biology, looks at a wild apple cultivar in a Cornell AgriTech orchard. Credit Allison Usavage, Cornell University 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.