Develop and publish literature to provide up-to-date information on specific topics zDevelop grape grower and County Extension Agent training sessions and short courses zResearch phyiloxera biology in Oregon
Grape phylloxera (Daktulosphaira vitifoliae), a root-feeding aphid-like insect, is the most important pest of European winegrape vineyards worldwide. They cannot be controlled on infested vines which eventually die. There are currently no satisfactory chemical or biological control methods for this pest; its management throughout the world has been by planting...
Since phylloxera's discovery in a commercial vineyard in August of 1990, nine infestations have been verified in Oregon. With over 95% of Oregon's vineyards planted with ownrooted, Vitis vinifera, non-resistant vines, understanding the insect's biology under our conditions has become important for determining management strategies that minimize rate of spread....
Progress Reports for projects: Audio/Visual instruction of canopy management for wine grapes in Oregon, Utilize the northwest berry and grape information network to communicate to Oregon wine grape growers on-farm experimentation techniques (on-line/on-farm), and Publishing of the 2003 pest management guide for wine grapes.