replying to John Bachman, Solid wrote:
Good question. The point is obviously not to start a fire; but similar to a
flesh wound, cauterization can theoretically 'seal' the exposed tree from
infection/infestation. Is it a little dangerous? Of course. But if done
correctly And safety; will it prevent a tree from dying when otherwise it
would have? Unfortunately there is no good data that I am aware of that has
explored this. If you do decide to do this; (obviously be careful) please
report your results.

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