Bill white
New Member
I have a very large 4+ feet diameter Sycamore tree that has a large hole 5 feet off the ground. The hole is wet with rot and additionally has black ants actively in it. The hole itself is approx. 10 inches in diameter and 12 inches deep , the location is where it had been pruned to close to the trunk many years ago. Please advise on how to care for this and prevent additional water from entering tree. Thanks for your help.