Help ID plum tree issue

One of my wild Goose plum trees has some limbs with foliage dying. In a group of four this is the only tree with symptoms. Any ideas?
The group is watered weekly

Should I be pruning off the affected limbs?
Kent wa

Dennis, see if verticillium wilt matches. We get it on our Nanking cherries and just prune it out. Some years are better than others.


It’s what I expected Mark, our mulberry had it several years ago.

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I have had success treating VW in my veggies with Actinovate SP. However, root drenching a tree could be challenging.