There are a couple small trees on the golf course that are showing signs of what appears to be fall webworms. One several occasions, I simply cut the branch off that has the moth tent. I've seen these before in Highlands but never to the point it harmed a tree. Therefore, we do not treat these trees with any kind of insecticide. Here is a link to a fact sheet:
http://ento.psu.edu/extension/factsheets/fall-webworm