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Why is my Oak Dripping Sap?

It could be the bacterium Erwinia quercina, causing what is called “drippy nut disease”.

Native oak trees were here before California was settled by Native Americans.  They are iconic, hardy and long-lived trees, but they can get diseases and pests that are a nuisance.  Click here to read this article from Traverso Tree Service that explains what might be bothering your native oak tree.