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

April 2011 news archives

  • Florida researcher working on disease-resistant grapes
    Southeast Farm Press April 28, 2011

    Many popular grape varieties are susceptible to disease in Florida, especially the bacterial malady called Pierce's disease , because the state's weather is hot and humid during much of the growing s ...


  • UF researcher's work takes Florida a step closer to disease-resistant grapes
    FreshPlaza April 27, 2011

    Many popular grape varieties are susceptible to disease in Florida, especially the bacterial malady called Pierce's disease , because the state's weather is hot and humid during much of the growing s ...


  • Invasive Moths Cause Concern for Grape Growers
    Patch.com April 22, 2011

    “We're looking for European Grapevine Moth {orange traps} and also gypsy moths, Mediterranean fruit fly, Japanese beetles, glassy-winged sharpshooter , and the light brown apple moth,” according to S ...


  • New Technique Improves Sensitivity Of PCR Pathogen Detection
    Medical News Today April 22, 2011

    (press release) However, Bio-PCR also improves detection of slow-growing pathogens such as Xylella fastidiosa , responsible for Pierce's disease of grapes and leaf scorch of shade trees. In studies w ...


  • 'Opus' wows 'Vino' lovers
    Napa Valley Register April 21, 2011

    Several in the audience were excited to hear that UC Davis is currently experimenting with a crossing of cabernet sauvignon and a native American variety, Vitis Arizonica, to create a variety resista ...


  • Budget cuts worry wine industry
    Sulphur Springs Country World News April 05, 2011

    Though funding for the Texas Pierce's Disease Research and Education program at Fredericksburg is not affected by the loss of funds in the TDA budget, that program is at risk from another direction. ...


  • Sharpshooter always a concern
    Napa Valley Register April 02, 2011

    The sharpshooter's sucking may not even harm the plant seriously, but as the insect moves from one plant to the next, it spreads the bacteria that cause Pierce's disease . As these bacteria multiply, ...


  • Garden Clippings It's all about good eating
    Tampa Bay Newspapers April 01, 2011

    Unfortunately, the virus Pierce's disease kills some types of traditional bunch grapes. The University of Florida has developed a new hybrid muscadine crossed with a bunch grape, Southern Home, that ...