1. First, fifth and seventh authors: Department of Plant Pathology, University of California, Davis 95616; second author: University of California Cooperative Extension, 1432 Abbott St., Salinas 93901; third author: Fox Weather, LLC, Fortuna, CA 95540; and fourth and sixth authors: United States Department of Agriculture–Agricultural Research Service, 1636 E Alisal St., Salinas, CA 93905.