Manzanita tree in Central Calif. (Lompoc) #568220 - Ask Extension


Manzanita tree in Central Calif. (Lompoc) #568220

Asked June 07, 2019, 3:17 PM EDT

What is causing yellowing & dropping leaves on the Manzanita tree many years old and in same location?  It gets watered occasionally.. It is located along a hillside in very sandy soil. I noticed dark spots on some leaves!  How do I treat this?

Santa Barbara County California

Expert Response

Thank you for your question. It is difficult to diagnose a plant condition without photos and, often, an examination. One possibility is that your tree has contracted Sudden Oak Death, described here: I suggest you take photos of the tree and leaf samples and visit your county Extension office. Here is their webpage: Good luck!
Kristena LaMar Replied June 13, 2019, 10:55 AM EDT

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