Tree Damage

Asked December 4, 2015, 4:09 PM EST

I had a large branch removed from an oak in June and in doing so they bashed the side of the tree with that branch. Photos attached. Question: have they seriously harmed the tree? Thanks very much

Baltimore County Maryland

1 Response

Trees protect themselves from decay organisms through a process called compartmentalization and forming callus tissue is part of that defense mechanism. If the cambium layer of the tree is not affected then the tree may be okay. No pruning paint, sealer, or foam is recommended as it can interfere with the healing process. Keep the tree watered during dry periods and make sure mulch is no thicker than several inches and keep away from the base of the trunk. mh