In search of virus-free vines.

In an ideal world, we'd have virus-free vines and problem-free vineyards. Severe virus disease problems during the '50s spurred UC and USDA scientists to develop methods for grape virus disease detection and eradication. According to one UC, Davis report focused on grapevine leafroll, providing disease-free grapevines and rootstock to California's famed North Coast wine region is a multimillion-dollar money-saver. [Extracted from the article]