Pierce's Disease .org

news and research about Pierce's Disease

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

Meeting of the PD/GWSS Board Meeting & Pierce's Disease Advisory Task Force
posted on: Mon Mar 12, 2012

Date: April 23, 2012
Time: 10:00AM
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Meeting of the PD/GWSS Board Meeting & Pierce's Disease Advisory Task Force
posted on: Wed Dec 28, 2011

Date: January 23, 2012
Time: 9:30AM
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View Past Announcements

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