Pierce's Disease
Research Updates


What is Pierce's Disease?

Pierce's Disease is a bacterial infection, which is spread by bugs that feed on grapevines, particularly the "glassy winged sharpshooter." Grapevines that become infected with PD can quickly become sick and die.

glassy-winged sharpshooter

2021 PD Research Symposium Proceedings now online

The Proceedings of the 2021 Pierce's Disease Research Symposium is now available online. Please visit this page to view and download. Thanks to everyone who submitted reports and participated in the symposium. Also available on this page is an executive summary of the funded projects entitled 2021 Pierce's Disease Research Projects at a Glance.

Regular research reports will also be available on this website (piercesdisease.cdfa.ca.gov) under "Project Reports" soon. Thank you for your patience.