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

September 2009 news archives

  • Waiting for the governor's pen
    Napa Valley Register September 28, 2009

    One measure would extend state support for research into Pierce's disease, the vine-killing problem carried on the wings of the glassy - winged sharpshooter ...


  • No need to whine about the swine
    Daily Cardinal September 25, 2009

    Frank has eaten a bad egg, and a deadly disease (Laurence Fishburne) is looking to bring him down. Now it's up to Ozzie and Drix the pill (David Hyde Pierce ...


  • Ag at Large: Farm getaways expand appeal
    Porterville Recorder September 14, 2009

    ... have banished the scourge of Pierce's disease carried by the notorious glassy winged sharpshooter , tourism is likely to make a comeback there. ... and more ...


  • Winery harvests first grapes
    Monroe News Star September 07, 2009

    "The Black Spanish is the only true North American wine grape, and its resistant to Pierce Disease (a common problem for American growers)," he said. ... and more ...


  • Wiggins' wine bill heads to governor
    Times-Standard September 04, 2009

    By extending the sunset date, the Pierce's Disease Control Program can continue to combat the spread of Pierce's Disease and the Glassy - Winged Sharpshooter ...