Pierce's Disease
Research Updates

piercesdisease.cdfa.ca.gov

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

May 2012 news archives

  • Campaign aims to keep the glassy-winged sharpshooter out of Napa County
    Vallejo Times-Herald May 05, 2012

    Campaign aims to keep the glassy-winged sharpshooter out of Napa County Vallejo Times-Herald "If the Glassy-winged Sharpshooter ever gets into Napa County, it will most likely not be on county-inspected commercial grape or nursery stock shipments, but in the car of a gardener who has bought a plant ...


  • Different kinds of spirits in Orange County
    TheRecordLive.com May 02, 2012

    Texas wines, however, are having a tough go of it because of a malady named Pierces Disease is striking vineyards. With Pierces Disease , the grapes may be fine the first year, but the vine will die the second year and become useless ...