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I recently had two companies give me quotes on pruning the deadwood from my large honey locust tree.

Company A was marketing itself as stronger in tree health, and they boasted spraying anti-fungal on the freshly-cut limbs, claiming honey locusts are susceptible to fungal infections.

Company B said that they have found this spraying to be ineffective and don't recommend it. They are more of a run-of-the-mill trimming company but they're passionate and climber-only.

I have not found any discussion either way in my Interwebs search. Does anyone have any insight or references?

EDIT: I am in the northern Midwest of the United States.

calcium3000
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You don't say where you are in the world, but the best time to prune Gleditsia triancanthos is actually autumn/fall - cutting live wood in spring is likely to mean bleeding of sap from the cuts. However, if all you're having done is the dead wood removed, that might not be such a problem.

I can't find anything that suggests these trees are any more prone to fungal infection than other plants, though are prone to insect damage on leaves, so it sounds to me like the fungal treatment they're intending to use is likely extra to requirements. Further info on pruning these here https://homeguides.sfgate.com/trim-gleditsia-sunburst-tree-75180.html

Bamboo
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