The first report from Napa County was in September 2002.
VMB Recent Publications
Vineyard managers and researchers seek sustainable solutions for mealybugs, a changing pest complex
Augmentative releases of the parasitoid, Anagyrus pseudococci, may be part of an IPM program for vine mealybug: Retail sources of Anagyrus pseudococci in California
"Which Mealybug Is It?" (article from Practical Vineyard & Winery Jan 2006)