Spread of Sudden Oak Death in the Copeland Creek Watershed

Copeland Creek is possible vector for Sudden Oak Death (SOD) spread from SSU’s Fairfield Osborn Preserve to the SSU Campus. We found that SOD occurs in bay laurel and European sweet bay trees on SSU campus but that symptomatic leaves are lower on campus than at the preserve. Although tanoaks had visible symptoms (including stem cankers), tests found they were infected by a related species (P. nemerosa).