Q.Is This Disease Or Damage?
I have 2 acer trees and on both trees across the top of them the leaves are like the photo, some worse than others! Are the diseased, weather damaged, or something else! Can I do anything to help these trees. They have been in my garden for many years and it’s the first time I’ve seen this.
Certified GKH Gardening Expert
It appears to be verticillium wilt!
Though it is not completely curable, this article will help you to address the issue: