Grapeleaf skeletonizer and grape flea beetle were found in the orchard during the last couple of days. These two pests damage grape leaves but few other plants. The skeletonizer is a bluish-black moth ...

With thousands of tiny moths already trapped in budding vineyards, Napa Valley grape growers have begun spraying pesticides against the latest threat to California's premiere wine region. "We're in ...

As a result of experiments conducted in San Diego County, California, in a steep, narrow, almost inaccessible canyon opening on the desert, it appears that wild grape vines growing in such canyons can ...