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

December 2009 news archives

  • New Year's forecasts and resolutions for 2010
    Montgomery County Courier December 31, 2009

    Commercially available grapes vines (vitis vinifera – the classic grapes) that are resistant to Pierce's Disease will become available to Texas vineyards by ...


  • Cuts in funding, pests, trapping
    Ukiah Daily Journal December 26, 2009

    The Glassy Winged Sharpshooter is a pest that can spread Pierce's Disease, and funding is critical, the county's legislative report stated. ... and more ...


  • Whitmer re-appointed Ag Commissioner
    St. Helena Star December 17, 2009

    ... Whitmer outlined his accomplishments during his most recent tenure, including maintaining Napa County as an area free of the glassy-winged sharpshooter , ...


  • County ag commissioner retires
    Lompoc Record December 16, 2009

    ... without too much controversy in residential areas, during outbreaks of pests such as the light brown apple moth and the glassy-winged sharpshooter ...


  • State declares county free of vineyard pest
    Sacramento Bee December 16, 2009

    The California Department of Food and Agriculture has declared Sacramento County free of the glassy-winged sharpshooter , an insect that transmits a disease ... and more ...


  • County ag commissioner retires
    Santa Maria Times December 14, 2009

    ... without too much controversy in residential areas, during outbreaks of pests such as the light brown apple moth and the glassy-winged sharpshooter ...


  • Deadline nears for USDA grants
    Napa Valley Register December 10, 2009

    A sample of projects that qualify include: vineyard cover crops, streambank stabilization and riparian Pierce's disease management, livestock watering and ... and more ...