San Francisco Bay Area

Sudden oak death, Bruce Moltzan, USDA For
Flatheaded fir borer, Steven Valley, Oregon Department of Agri
Canker rot, Robert Anderson, Bugwood.org

This region, which circles the bay, features significant topographic relief, with Douglas-fir/tanoak stands and redwood forests as well as drier oak/pine stands and chaparral.

Typical insect and disease problems
• Sudden oak death
• Pitch canker of pines, especially Monterey pine and bishop pine
• Flatheaded fir borer in Douglas-fir
• Canker rots, true mistletoes, bark beetles, and ambrosia beetles in oaks
• Tree, shrub, and herb regeneration problems caused by non-native Phytophthora species