Environmentally Friendly Way to Get Rid of Webworms

The webworms are here.  What worms?  These worms:

They show up in trees and shrubs, spinning unsightly nests that can span three feet.  In previous years, I've seen entire trees shrouded with them. 

Inside the nests, caterpillars of the white moth are busy eating away at the leaves.  If you look up close, you can see a pile of them wiggling and squirming. 

While they typically appear in Fall, I'm beginning to see them now.  I see them in the neighbor's trees behind our house.  And I saw this small nest in a tree in our front yard.  Typically, they aren't disastrous for established trees.  But they are definitely an eyesore and after my bagworm experience, my pain threshold is pretty low.  So they had to go.

My extremely environmentally friendly method of grappling with them?  I cut the nest out of the tree with my garden shears (the leaves on those tiny branches were toast anyway), threw it on the ground and stamped on it until I felt better.

And I did feel better.