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.

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Apr 2010 news archives

  • PD Editorial: Wish lists
    Santa Rosa Press Democrat on April 1, 2010

    There are requests for Napa River flood control work, levee repairs, hospital renovations, Pierce's disease research and the like. ... and more...


  • PD Editorial: Vine pest
    Santa Rosa Press Democrat on April 3, 2010

    Growers also remain concerned about the glassy-winged sharpshooter . Because the European grapevine moth produces three generations in a growing season and...


  • Finding safer solutions for fending off ag pests
    Ventura County Star on April 3, 2010

    In March 2001, it was the glassy-winged sharpshooter that was going to devastate vineyards in California. But that, too, had a suspicious history involving...


  • Landry Vineyards is a winery to visit near you
    Monroe News Star on April 7, 2010

    The reason is Pierce's disease . This is a bacterium that attacks the xylem of a grapevine and prevents parts of the vine from getting the right amount of ... and more...


  • Viticulture briefs
    Santa Rosa Press Democrat on April 18, 2010

    The Pierce's Disease/ Glassy Winged Sharpshooter Referendum to extend the assessment that funds the vineyard pest containment and research program is under...


  • Moth discovery could devastate Solano's grape crop
    Vallejo Times-Herald on April 24, 2010

    "We have a battle-hardened staff from the successful eradications of glassy-winged sharpshooter , Japanese dodder and the Medfly. ... and more...


  • The agriculture office: heart of the valley
    Napa Valley Register on April 26, 2010

    ... fish-friendly farming, Pierce's disease and the glassy-winged sharpshooter , the vine mealybug, the European grapevine moth and more...


  • Threat to Solano wine industry hits home after discovery of moths
    Examiner.com on April 26, 2010

    "We have a battle-hardened staff from the successful eradications of glassy-winged sharpshooter , Japanese dodder and the Medfly," Allan said. ... and more...


  • US(CA): Moth discovery could devastate Solano's grape crop
    FreshPlaza on April 26, 2010

    "We have a battle-hardened staff from the successful eradications of glassy-winged sharpshooter , Japanese dodder and the Medfly. ... and more...