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

June 2011 news archives

  • Uncorked: Local winery set to expand across the state
    Anniston Star 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 ...


  • Will Grapegrowers and Consumers Accept GMO Wines?
    Palate Pres 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 ...


  • County Agriculture Commissioner Retires After 21 Years
    Patch.com 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 ...


  • Shots for wine
    Cosmos 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 ...


  • HERB BENHAM: Heard it through the grapevine that they're here to stay
    Bakersfield Californian 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 ...


  • County Agriculture Commissioner to Retire After 21 Years
    Patch.com 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 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 ...


  • Texas Needs More Wine
    Palate Pres June 01, 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 ...