Plum tree problem

Asked June 29, 2017, 11:30 AM EDT

I was emailed these pictures of a person's plum trees. The plums are turning black and drying up like prunes. It's happening on two trees located next to each other. Can you tell me what might be causing this? Also there on insects on the leaves of the trees. I don't know if the two are related or if they are two separate issues. Is there a spray that is recommended?

Wadena County Minnesota

1 Response

What you are describing is consistent with brown rot and your plums are turning into fruit mummies.
https://www.gardeningknowhow.com/edible/fruits/plum/plum-tree-diseases.htm