It rots off before it constricts. I use it to make the rabbits move on, well move on = eaten by a hawk, usually. And you don't have to wrap it tightly anyway.I used pool noodles, cut a slit all down it to slip it on & allow for growth. I did that because the deer were rubbing bark off my young apple trees. I never thought of using vet wrap, but then won't that have to be re-wrapped every so often, so it won't constrict growth?