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

March 2012 news archives

  • Guarding Grapevines with Genes
    Wine Spectator March 13, 2012

    Guarding Grapevines with Genes Wine Spectator Scientists have created a vine gene that can kill Pierces disease , but will consumers accept wine from genetically modified vines? Its been more than a decade since the last major outbreak of Pierces disease devastated grapevines in California, ...