Grape breeders at the University of California, Davis, hope they're close to producing vines that are resistant to Pierce's disease, which kills grapevines. UC, Davis, professor Andrew Walker, a grape breeder, used wild American grape varieties—all of which are resistant to Pierce's disease in varying degrees—to breed a group of eight new vines (four red, four white), with strong resistance.
For the full article, check out the new issue of Wine Spectator, on newsstands May 17, 2007.
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