Vaughn Walton, Amy J. Dreves, Patricia A. Skinkis, Clive Kaiser, Marcus A. Buchanan, Rick Hilton, Robert Martin, Steve Castagnoli and Steve Renquist EM 8990 | October 2009 Download PDF SummaryThis 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 Rick Hilton (Retired) Robert Martin Steve Castagnoli Director Steve Renquist (Retired)