keeping insects out of wounds
I've been wondering for years -- and asking anyone who might know -- if there's anything that can be done for a wounded tree to help it recover.
I've seen several cases now where the wound was minimal, and should have been compartmentalized quickly by the tree with few problems, but insects took up shop and caused further damage and brought in all manner of fungus, virus, and bacteria which made a mess the tree was unable to handle.
So I've focused on the problem of keeping insects out of the wound.
The problem is, how to keep insects out without harming the living tree tissue which is trying to compartmentalize?
Does anyone here know if there any ongoing scientific research on this topic?
In the past, I've sprayed a dilute solution of Tea Tree oil, which seems to discourage insects and also has mild anti-microbial properties, and doesn't seem to hurt the living tree tissue. But it's not 100% effective, and must be re-applied often because it washes off when it rains.