A volunteer pins a sudden oak death (SOD) sampling tag to a tree. April 4, 2022 By Dr. Brian Woodward, Conservation Ecologist Sudden Oak Death (SOD) is a tree disease caused by the exotic plant pathogen Phytophthora ramorum. Originally introduced with imported nursery plants, the pathogen has spread widely across coastal California and southwestern Oregon, where it has killed hundreds [...]
Comparing blue oak leaves (right hand) to black oak leaves (left hand). Photo by Alix Soliman. October 26, 2021 By Jackson Brooke, Restoration Manager Some of the most dramatic trees on The Preserve are old oaks, which are found sprinkled on grassy hillsides to create brilliant savannas and clustered together in woodlands, providing habitat for many species. Oak trees are [...]