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.

About Pierce's Disease

Pierce's Disease is a deadly disease of grapevines. It is caused by the bacterium Xylella fastidiosa, which is spread by xylem feeding leafhoppers known as sharpshooters. Pierce's Disease is known to be prevalent within the USA from Florida to California, and outside the USA in Central and South America. Xylella fastidiosa works by blocking the xylem, which conducts the water around the plant. Symptoms include chlorosis and scorching of leaves, and entire vines will die after 1-5 years. Pierce's Disease is less prevalent where winter temperatures are cold, such as more northern areas, high altitudes and inland areas.

Announcements

International Symposium on the European Outbreak of Xylella Fastidiosa in Olive
posted on: Tue Apr 15, 2014
For more information copy the following link and paste it into the address bar. Read More →
Site Under Construction
posted on: Wed Apr 02, 2014
Check back soon for new updates! Read More →
View Past Announcements

Where to go from here

  • Recent News

    Keep up to date with the latest news related to Pierce's Disease.

  • Recent Publications

    Find the most recent research papers that have been published on Pierce's Disease and related topics.

  • Grants

    Submit information on projects, including funding information and progress reports.

  • Resources

    Find a variety of sources with information on Pierce's Disease, as well as information on funding agencies.

  • Search

    Search the online resources for information related to Pierce's Disease.