United States Department of Agriculture A Field Guide Forest Service to Insects and Pacific Southwest Research Station Diseases of General Technical Report PSW-GTR-197 California Oaks July 2006 Tedmund J. Swiecki Elizabeth A. Bernhardt cm 18 17 The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis 16 of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental 15 status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an 14 individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) 13 Persons with disabilities who require alternative means for communication of program information (Braille, large print, 12 audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint 11 of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, 10 D.C. 20250-9410, or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider 9 and employer. 8 7 6 Citation: Swiecki, Tedmund J. and Bernhardt, Elizabeth A. 2006. A field guide to insects and diseases of 5 California oaks. Gen. Tech Rep. PSW-GTR-197. Albany, CA: Pacific Southwest Research Station, Forest Service, 4 U.S. Department of Agriculture, 151 p. 3 Author information: Tedmund J. Swiecki and Elizabeth A. Bernhardt are plant pathologists and principals of 2 Phytosphere Research, 1027 Davis Street, Vacaville, CA 95687 (Email address:
[email protected]) 1 0 mm A Field Guide to Insects and Diseases of California Oaks Tedmund J.