Sudden Oak Death Monitoring
Forest Health Monitoring provides a key role in monitoring Sudden Oak Death (SOD), the term used to describe a phenomenon associated with Phytophthora ramorum, a fungus-like pathogen causing mortality in hardwood species (for a complete list see http://suddenoakdeath.org).
Since 2001 USDA Forest Service Forest Health Monitoring program staff and California State Polytechnic University, San Luis Obispo have conducted aerial surveys to map hardwood mortality related to SOD, and targeted ground-based surveys sampling to determine presence of P. ramorum.
These aerial surveys have been conducted statewide across known counties of infestation and border counties including the Sierra Nevada foothills annually. The mapped mortality polygons provide a basis to prioritize ground surveys.
SOD monitoring outreach activities include coordination with other federal, state and local government and private landowners through face-to-face meetings, workshops, and news releases. For monitoring outreach information please contact Zack Heath.
Mahon, L.C., Fischer, C., Levien, L. and Mai, J. 2002. The Use of Remotely Sensed Data for the Detection, Mapping and Monitoring of Sudden Oak Death. Proceedings of the 9th Biennial Forest Service Remote Sensing Conference. San Diego, CA. April 8-12.
Bibliography - Scientific Reference List for Phytophthora Ramorum - California Oak Mortality Task Force