Noticed this week that one of my pines, close to the house has been damaged. Not sure how, or if it will kill the tree. Or if I should have it removed. (too close to the house for me to cut it down, and it's pretty tall.) It's about 4' off the ground, so nothing hit it. I haven't taken anything back there in years that would be tall enough to hit it. Lots of ants in it also, little bitty ones. And something strange, all my pines in that area had lots of locust shells on them. 10 or more on each tree, none on the oaks. Trees approx. 2' in diameter, damage is about 6" or so.