Vaughn Walton, Amy J. Dreves, Patricia A. Skinkis, Clive Kaiser, Marcus A. Buchanan, Rick Hilton, Robert Martin, Steve Castagnoli and Steve Renquist EM 8990 | Published October 2009, Reviewed 2023 Download PDF Summary This document suggests practices believed to mitigate the spread of disease and virus. About the authors Vaughn Walton Entomologist Amy J. Dreves Entomologist (Former) Patricia A. Skinkis Viticulture Extension Specialist Clive Kaiser (Former) Marcus A. Buchanan Viticulture Extension Instructor Southern Oregon Research and Extension Center Rick Hilton (Retired) Robert Martin Research Plant Pathologist Horticultural Crops Research Laboratory, USDA Agricultural Research Service Steve Castagnoli Director (Retired) Steve Renquist (Retired)