Affiliation: | 1. Department of Entomology, University of California‐Davis, Davis, U.S.A.;2. USDA Forest Service, Forest Health Protection, San Bernardino, U.S.A.;3. USDA Forest Service, Northern Research Station, St. Paul, U.S.A.;4. USDA Forest Service, Pacific Southwest Research Station, Davis, U.S.A. |