Plum Trees

My Santa Rosa plum has some disease that leaves a black covering on the leaves, fruit and stems, and covers everything under the t

Zone San Francisco, CA | added on August 10, 2019 | Answered

ree. There is also sap oozing from the tree. What is this and how can I treat it and save this mature plum tree? All the fruit has now dropped, so is pruning appropriate now?

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Certified GKH Gardening Expert
Answered on August 13, 2019
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