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 2009 news archives

  • Parks and Napa Pipe
    Napa Valley Register May 20, 2009

    May has been proclaimed “Glassy-winged Sharpshooter Awareness Month” by the Board of Supervisors. The board wants Napa County residents to know that the threat is still out there — that it is as impo ...


  • WINE BRIEFS (The St. Helena Star)
    WINE BRIEFS May 13, 2009

    The Napa Valley Grapegrowers (NVG) has announced the recipient of its 2009 Grower of the Year award. Longtime Napa grower Andrew Hoxsey will be honored at the organization’s 34th Annual Dinner on May ...


  • Bonny Doon Vineyard tasting room adds gourmet cafe
    Santa Cruz Sentinel May 13, 2009

    He goes on to point out how random winemaking can be, "accidentally" delivering this incredible syrah before the glassy-winged sharpshooter, which carries Pierce's disease, wiped out the vineyard. Th ...


  • WINE BRIEFS - St. Helena Star
    St. Helena Star May 12, 2009

    The State Senate Committee on Food & Agriculture voted 5-0 recently to approve SB 2, legislation by Senator Patricia Wiggins (D - Santa Rosa) to extend the Pierce's Disease/Glassy-Winged Sharpshooter ...


  • WINE BRIEFS (The St. Helena Star)
    WINE BRIEFS May 11, 2009

    The Napa Valley Grapegrowers (NVG) has announced the recipient of its 2009 Grower of the Year award. Longtime Napa grower Andrew Hoxsey will be honored at the organization’s 34th Annual Dinner on May ...


  • Hike your way to bluebird of happiness
    San Francisco Chronicle May 08, 2009

    Last year the winery built 500 bluebird boxes in hopes of recruiting the birds for the elimination of the blue-green sharpshooter, a nemesis to the grapevine and small cousin to the glassy-winged sha ...