Saving a tree from ring yap? MY horse has fixed to eat the yelp around my trees, she...

MY horse has fixed to eat the yelp around my trees, she has not completely gone around them some own only rather bark on them around the remains, I have since taken the horse out of the paddock.
Is nearby anything i can paint on the exposed parts of the tree? they are poplur trees full grown, will they die?.
Brooklyn Botanic Garden SChedule?!!?
Answers:    The short answer is no. There is nothing you can do for the tree. Depending on the WIDTH of the ring, and the species, it might survive. If the ring is wider than... oh... an inch, and its most of the course around the tree, its going to die. If its smaller than and inch sometimes the tree will have plenty energy to reconnect its vascular system. But, I've see what horses do to trees, and its probably pretty bad.

They do clear a chemical dressing for tree wounds, but these often do more spoil than good by keeping moisture against the wood, cause rot.

And just a head up- there are abundant tree species that are poisonous to horses if eaten. In the East, view out for cherries especially.