Oregon’s wine industry, worried about the threat of vine mealybug and potential for rapid spread of grapevine leafroll virus, is taking proactive steps to try to keep the pest out of the state. The wine industry is particularly worried about finding vine mealybug because plant material and harvested grapes routinely come from areas where there are known infestations, such as California, where vine mealybugs and the disease are widely present. The impact from leafroll disease on fruit quality can be pretty severe, said Dr. Vaughn Walton, Oregon State University Extension horticultural entomologist. Growers in Oregon’s Willamette Valley—a cool climate region […]