From what I've been reading on the internet, even though it's only June, I think I have fall webworms. The webs encase the tips of the trees, not the crotch of branches. Also, I live along the coast of Mississippi, and we've had warm weather since February. I was reading one description of fall webworms in Alabama, which stated that webworm activity can start as early as April. I started noticing our webs in May. Also, we have seen caterpillers that more closely resemble the orange species webworm than the tent caterpiller (I think). Finally, it seems in the south that webworms favor pecan trees, which are the trees in my yard that are most affected. Most of what I've read states that though ugly, these are not usually a threat to the tree, but my peacan trees are filled with these webs, and our neighbors also have lots of webs. I'm afraid that even if I attempt to control them, they will just come back from the infestations in our neighbors trees.