Can Anyone Help Me To Identify The Disease Of My Golden Plum Tree?

Question

This Golden plum tree is already 15 years old. Since 2 years ago it looks weaker year after the other year. I live in California (Southeast side from SF). We experienced drought for many (7) years; texture of soil more like clay/loamy soil. Did a soil drainage test– 2 inch drop every hour.

This year not many fruits produced, and those plums grew small and leaf color looks like some kind of deficiency, and also dropping a lot. Many branches have died back, gummy stuff leaking on the trunk. Can anyone tell me what is going on with my golden plum tree? What kind of disease on the branches and the gummy stuff on the trunk? Can I still save my tree (use any methods?) or I should cut it down? Please help, urgent?!

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Answer 1

There are many possibilities for the leaking sap and the drought you mentioned could be one of the stressors affecting your plum tree. I've attached articles below that discuss sap oozing from a plum tree, plus dropping leaves. You may want to consult your local extension agent or an arborist for a definite diagnosis.

https://www.gardeningknowhow.com/edible/fruits/plum/plum-tree-is-bleeding-sap.htm
https://www.gardeningknowhow.com/edible/fruits/plum/plum-tree-dropping-leaves.htm
https://www.gardeningknowhow.com/edible/fruits/plum/plum-tree-diseases.htm
https://www.gardeningknowhow.com/edible/fruits/plum/treating-rust-on-plum-trees.htm