Oh well, another gift from the abroad, last I recall was Dutch Elm disease, then the Emerald Ash borers, and some sort of moth did in our remaining quaking aspens, gotta stay in touch with the Ohio State agricultural team to see whats next ,did get rid of all our 'hogweed' and the the neighbors kids 'wild hemp', so we are good to go with whats left down to about one acre of "woods".........and scattered cherry and apple and LOTS of white pines, and yes they had a beetle?? brown spots?? a few years ago.......only thing I know and do with tress is cut them down, cut them up, give it all away , and burn the limbs ,yes got a gas log fireplace, we'll leave it at that..........I am NOT a "woodworker"????