Weeds Harbour Grape Disease

New research indicates that one of the most destructive diseases of grapes, Pierce's disease, is present in many of the common weeds found in California vineyards. Insect pests spread the bacterial infection to grapes. The level of infection varied greatly among host species in different environmental conditions. Scientists are evaluating the individual responses of weeds to the disease. The findings suggest that better weed control in fields and adjacent areas will aid in suppression of the disease.

Link: Vineyard Weeds Found to Host Pierce’s Disease of Grapes from Newswise

Posted by Eric La Fountaine at 10:00 AM on October 18, 2005

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