UCCE Humboldt - Del Norte Counties
University of California
UCCE Humboldt - Del Norte Counties

Sudden Oak Death

UC Cooperative Extension provides information about sudden oak death and other disease symptoms caused by the pathogen Phytophthora ramorum. We also monitor for the presence of this pathogen in Mendocino, Humboldt, and Del Norte Counties and are currently working on developing silvicultural techniques for reducing pathogen presence in forested settings. The following links and downloads present some of the information we've found most relevant to sudden oak death management and monitoring in the North Coast. For more information about Phytophthora ramorum in general, as well as information about how it is affecting other California counties, visit the California Oak Mortality Task Force web site at www.suddenoakdeath.org. You can also obtain more information from Yana Valachovic, Humboldt-Del Norte Forest Advisor, or from Dan Stark, Sudden Oak Death Program Coordinator.

CLICK the bleeding tanoak above for more information on sudden oak death and symptoms of Phytophthora ramorum
CLICK the bleeding tanoak above for more information on sudden oak death and symptoms of Phytophthora ramorum

CLICK the above map for information on disease locations in the North Coast
CLICK the above map for information on disease locations in the North Coast

A Brief Introduction to Finding Sudden Oak Death Symptoms on Tanoak and California Bay Laurel
SOD Symptoms on Tanoak and CA Bay Laurel (PDF)

North Coast Sudden Oak Death Updates
Summer 2012 (PDF)

Information on the Control of Sudden Oak Death
Wildland Management of Sudden Oak Death in Humboldt County (PDF)
Forest Treatment Strategies (PDF)
Protecting Trees from Sudden Oak Death before Infection (PDF)
Oak Tree Health in the North Coast (PDF)

Information about Sudden Oak Death and Wildfires
Sudden Oak Death and Fire in California (PDF)
Safety issues for firefighters in SOD-infested forests (PDF)

Guides
A series of downloadable guides (PDFs) produced by the California Oak Mortality Task Force for a variety of user groups.

Informational brochure on SOD
SOD guide for homeowners
SOD guide for homeowners (condensed)
SOD guide for recreationists
SOD guide for landscapers
SOD guide for arborists
SOD guide for arborists (in Spanish)
SOD guide for foresters
SOD guide for Xmas tree growers
SOD guide for collecting forest products
SOD guide for collecting forest products (in Spanish)
SOD guide for plant collectors
Regulations Concerning Movement of Forest Products (PDF)

Webmaster Email: lacannafax@ucanr.edu