Sudden Oak Death Phytophthora ramorum Fungal disease affecting plants from more than 30 genera, established in portions of Pacific northwest, intercepted in nurseries nationwide Additional Resources MISC Invader of the Month press release. August 2004 Univeristy of Maryland Extension North Central IPM Center USDA Forest Service UC IPM Online California Oak Mortality Task Force Related PDF Files Sudden Oak Death (Phytophthora ramorum) Pest Alert. USDA Forest Service Sudden Oak Death Pest Alert. North Central IPM Center

Photo: K. Kyde, USDA-ARS Zone lines under bark