If your trees are of a susceptible to Sudden Oak Death, and you live near where trees have already succumb to the disease, your trees are at high risk.
Only two common oaks in the area are susceptible, the Coast Live Oak and the Black Oak. Less common, but also present in are neighborhood are the Canyon Live Oak and the Tan Oak. Valley Oak is not susceptible. Please use the oak identification sheet as a guide in determining what type of oak you have.
Most of the trees that have died or become infected are in an area extending from Corte Madera Creek up hill to Old Spanish Trail and the higher areas of Vista Verde or are near the Los Trancos Creek in the East. Unfortunately, the fungus-like "water-mold" that causes SOD is wide spread in our community, so all susceptible species of oaks, regardless of location, are at some risk. The Sudden Oak Death Task Force has mapped the progression of the disease in the Los Trancos Woods, and In Vista Verde areas.
Los Trancos Woods: Spread of the Disease
Vista Verde: Spread of the Disease