I have what I believe to be an ash tree that has shown problems for the past week. Big clumps of leaves have been falling from the tree. Most of the leaves on this tree have holes in them, as do the leaves that have fallen to the ground. Insects are crawling on the bark, one is bright green, didn't notice wings), the other has wings but am unsure of the color. Tried to get a photo but they move too fast. Hoping you can diagnose the problem, and appreciate your time. Thank you. Diane Osborne New Hope (I have more photos but am only allowed 3 here.)