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 2011 news archives

  • Knights of a table that serves wine
    Washington Post May 31, 2011

    But it has also helped gain funding for specialty crop research and federal resources to fight the glassy-winged sharpshooter , a vine pest that nearly devastated California's grape industry and has ...


  • Wine industry fights off moths while on alert for sharpshooters
    Napa Valley Register May 23, 2011

    As the battle against the European grapevine moth continues, county officials are mounting another campaign against a pest that has yet to gain a foothold in the valley - the glassy-winged sharpshoot ...


  • 'Don't friend the bug'
    Napa Valley Register May 21, 2011

    Dave Whitmer, Napa County agricultural commissioner, said, “If the glassy-winged sharpshooter ever gets into Napa County, it will most likely not be on commercial grape or nursery stock shipments but ...


  • Ross: tax extensions necessary to stave off ag department cuts
    Capital Press May 17, 2011

    The agency also stands to lose much of its funding for fighting Pierce's Disease , an insect-borne condition that damages vineyards, Ross said. The agency is already on the hook for cutting a third o ...


  • Wines from the hea(r)t of Texas
    Napa Valley Register May 13, 2011

    Secondly, they've learned to live with Pierce's Disease and the glassy-winged sharpshooters, which are native to the area. They use insecticides to kill the bugs. The systemic compounds applied throu ...


  • A tribute to California Marsanne
    San Francisco Chronicle May 13, 2011

    (blog) The plant material hailed from Bonny Doon's Randall Grahm, who provided it from the vineyard in the Santa Cruz Mountains that he would eventually lose to Pierce's disease . What Grahm gave Lin ...


  • Texas Twitter Tuesday Recap – May 3
    Examiner.com May 04, 2011

    It's a grape that seems to be resistant, if not immune, to Pierce's disease . Dry Comal Creek makes three wines from Black Spanish. Drought has a big effect on wine grapes and the Black Spanish in 08 ...


  • Texas Twitter Tuesday Recap – May 3
    Examiner.com May 04, 2011

    It's a grape that seems to be resistant, if not immune, to Pierce's disease . Dry Comal Creek makes three wines from Black Spanish. Drought has a big effect on wine grapes and the Black Spanish in 08 ...


  • Commentary: Why Farm Bureau endorsed Sen. Dianne Feinstein
    California Farm Bureau May 03, 2011

    Feinstein has utilized her years of experience in the Senate to fight against invasive and destructive pests like the Mediterranean fruit fly, glassy-winged sharpshooter , Mexican fruit fly, Asian ci ...