Pierce's Disease and Glassy-Winged Sharpshooters--Remember Them?
The disease hasn't gone away. Research points to a multi-pronged approach toward solving the problem.
Mar 2014 Issue of Wine Business Monthly
Editor's Note: This article is Mark Greenspan's 100th consecutive grape growing column with Wine Business Monthly. It was around the turn of the last century when the glassy-winged sharpshooter (GWSS, Homalodisca vitripennis) made headlines (nearly every week, it seemed), wreaking havoc in vineyards in the Temecula region of Southern California and the Southern San Joaquin Valley of California. The pest decimated vineyards by vectoring Pierce’s Disease (PD), caused by Xyl...
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