Hello, I have two ash trees on the south side of my home that seeming to be dying. I am unsure of the age of each tree. The dying leaves are brown and firm. I haven’t seen any thickening or insect bites on the leaves before they die. I have not seen any beetles on them or small holes in the truck where I can see up to about 7 feet off the ground. The tree on the west seems worse than the tree on the east. These are great shade trees and I am hoping they can be saved. I don’t routinely water them because I assumed the roots would be deep enough for them to draw from the ground water. I have attached photos of the trees.