I have these green worms chewing away at the leaves of my zucchini and summer squash. I had pickleworms last year, but these aren't the same.

They start out very, very tiny and look yellow. I've seen them get to about an inch before I end their lives and they are green then.

They seem to spin some sort of webbing to hide under.

They don't burrow into anything, just munch away at the leaves. Here are some photos:

Close Up:

Actual Size compared to my finger - not a full grown one:

This one is fuzzy, but it shows the webbing that they hide under:

Everytime I Google squash pests all that comes up are pickleworms, squash vine borers and squash bugs, and sometimes cutworms. I go out and squish them every day. The zucc/summer squash bed has them worse than the winter squash which I rarely find them on anymore. Any thoughts?

Thanks!