Santa Rosa Plum Tree

Question

I just noticed the leaves on my plum tree are beginning to turn brown. Really bad on the west side. I check it all the time and have never noticed anything but today I noticed a big problem. I did some further investigation and found some kind of burrowing bug in a branch. I removed that branch but couldn’t find any more. Should I remove the unripened fruit to reduce stress on the tree? Any suggestions on what could be causing the problem and a possible solution?

Thanks for your help
Dean Blakeslee

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Answer 1

This is likely damage from the American Plum Borer.
The link below will help you.

https://extension.psu.edu/plants/tree-fruit/insects-mites/factsheets/american-plum-borer
https://www.gardeningknowhow.com/edible/fruits/plum/plum-tree-diseases.htm