For public safety, a portion of the Northeast quadrant of Sonoma Plaza Park near the Bear Flag Statue is temporarily closed.
Important Safety Information: A large American Elm in the park has been diagnosed with Oak Root Fungus (Armillaria mellea), a serious condition that compromises the tree’s stability. The tree exhibits extensive fungal growth around its base, indicating a highly infected root system. This makes the tree unstable and at risk of collapsing.
Closure Details:
About Oak Root Fungus:
Next Steps: The infected tree will undergo further evaluation to determine if it can be saved. While the disease is not expected to spread to other trees, the City will develop a comprehensive management plan to monitor and protect other park trees.