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I finally got around to doing this. I just applied tanglefoot directly to the bark of a healthy 6ft-tall tree. I applied it to a major limb (>1in diameter) and a small twig nearby. I will see if there is any deterioration over time. If there is none... tanglefoot becomes much more useful to me. It is a pain to put tape or some other backing for it to prevent it from touching the bark. If it is harmless I can slap it all over.
[snip] I found a really good wrap that is stretchy and self-sticky. Actually, another forum member discovered it and is using it to wrap seedlings. It is sold as a type of gauze.