Only time will tell.

From the sound of the damage its not going to kill the tree but it could set it back.

Scott

It's been a little over week since I sprayed (wrecked) the tree. The dark green spots on the leaves ended up turning brown, and then became holes. It looked terrible! I ended up removing most of the damaged ones, and to my surprise there is a ton of new growth happening. Probably trying to make up for the damaged leaves. The small plums are still going strong so I think it will be in great shape in a few more weeks. Live and learn on this one!

others will chime in, but I never let a new planting (berries or tree) mature fruit it's first year in...you want that energy going into establishment.

I agree with Rob its best to remove the fruits, esp. since your tree got set back. Also don't remove damaged leaves if they are not diseased. The green left was producing good energy for more growth.

Scott

I agree about removing the fruit. The tree had probably 100 or so tiny plums. Half of those naturally dropped off, and I removed all but 6. I figured that's a good compromise.