Pierce's Disease (IMAGE) University of California - Riverside Caption Grapevine infected with Pierce's Disease, which is transmitted by the glassy-winged sharpshooter. Credit University of California Usage Restrictions No restrictions. License Public Domain 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.