If you have an Ash tree most likely a sign it is too late. The Asian Ash Bore Beetle has wrecked havoc. Lost a bunch of trees in the last 2 years. Had to cut 2 down not long ago to protect house and self.I have no less than 3 of them back there. They are "dedicated" to their craft for sure. Had one Saturday banging away 20 feet above my head dropping bark and chips on me.
View attachment 58718