Sudden Oak Death
- Phytophthora ramorum from the Center for Invasive Species Research
- USDA-APHIS P. ramorum website
- California Oak Mortality Task Force (COMTF) website – Information about SOD, mostly relating to California but including links to other areas
- Phytophthora ramorum from UK Forest Research: Pests & Diseases
Hosts and identification
- P. ramorum host list from USDA-APHIS
- Symptoms on various hosts from COMTF
- P. ramorum IPM guides for the home gardener on HortSense
- Sudden Oak Death (Common Diseases)
- Do I have P. ramorum? Sample submission guidelines
Phytophthora diseases
WSU Puyallup Research & Extension Center
2606 West Pioneer, Puyallup, WA, 98371-4998 USA
Last updated 9/24/2025