1. University of California, Davis, Department of Plant Pathology, Kearney Agricultural Research and Extension Center, Parlier, CA 93648
2. University of California, Davis, Department of Plant Pathology, Davis, CA 95616
3. University of California Cooperative Extension, San Joaquin County, Stockton, CA 95206
4. University of California Cooperative Extension, Glenn County, Orland, CA 95963