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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Jun 2011 news archives

  • Texas Needs More Wine
    Palate Pres on June 1, 2011

    “We've made significant advances in the control of the glassy-winged sharpshooter such that if you were to ask now, the answer you would probably get would be the late spring freeze or hail.” Aside f...


  • County Agriculture Commissioner to Retire After 21 Years
    Patch.com on June 18, 2011

    One of Carl's proudest accomplishments as Sacramento County Agriculture Commissioner is winning a nearly decade-long battle against the Glassy-winged Sharpshooter , an insect that often carries a cro...


  • Sacramento County agriculture commissioner to retire
    Sacramento Bee on June 15, 2011

    In 2009, he helped eradicate the Glassy-winged Sharpshooter , which can devastate grapevines, almonds, alfalfa and stone fruit. Carl and his wife are moving to Oregon to be closer to his two granddau...


  • HERB BENHAM: Heard it through the grapevine that they're here to stay
    Bakersfield Californian on June 19, 2011

    Pierce's disease ? No chance. The grapevines have withstood dust storms, brutally foggy winters, Biblical floods, drought, human error and about any other tool in the malevolent cosmic toolbox. The o...


  • Shots for wine
    Cosmos on June 20, 2011

    Reducing wine merchants to ripping their own crops out of the ground in desperation, Pierce's disease had the potential to leave vineyards devastated. Erick Falcón investigates the effort behind vacc...


  • County Agriculture Commissioner Retires After 21 Years
    Patch.com on June 20, 2011

    One of Carl's proudest accomplishments as Sacramento County Agriculture Commissioner is winning a nearly decade-long battle against the Glassy-winged Sharpshooter , an insect that often carries a cro...


  • Will Grapegrowers and Consumers Accept GMO Wines?
    Palate Pres on June 27, 2011

    The work is motivated in part by the goal of profitably growing grapes in Florida, an endeavor historically plagued by unmanageable Pierce's Disease , but Dr. Gray sees benefits for growers of both w...


  • Uncorked: Local winery set to expand across the state
    Anniston Star on June 29, 2011

    The major reason vinifera does not survive in our area is Pierce's Disease , a bacterial infection spread by bugs that feed on grapevines. Because Pierce's is a global problem, UC Davis has used gene...