My Box Elder tree is losing bark
I know it's a "junk tree" but it's huge & provides my yard with much needed shade. In the past 2 years , I've noticed more and more Bald patches on the upper trunk where the bark has fallen off. There's about 5 bare spots ranging from about 6" to 12" in diameter.
The wood in the bald spots look fine . We got rid of all our box elder beetles ( thank god ) and I can't see any other bugs. Is my tree sick or is this common ?
Thanks for your replies ~Kathy