I have a mature oak tree that had a double trunk. Yesterday I had one of the trunks removed by a professional tree remover. The cut left an 18" diameter stump that has not been treated with fungicide or tar. I want to keep the remaining trunk as healthy as possible. Should I do anything to the stump to protect it from fungus or disease?
Typically we do not recommend any post prune treatment to cut surfaces. It is however crucial to make this final cut at the proper place and angle. Having not seen the resulting work, it is difficult to say that the final cut was made at a proper angle to the remaining stem. I would consider this a substantial cut to have made and caution must always be used when removing a leader of this size. I would certainly refer back to the professional you hired to ensure the health and longevity of the tree has been protected.
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