Wow, that sounds nasty. Did you see the tents ahead of time? Or did the invasion come on without warning? I feel for you. Good luck.

Look at the bright side! You'll have flocks of moths next month. Be sure to look for the egg clusters next winter, and destroy them before they can hatch.

terrets, there's not much you could do now, anyway.....I've lived though a couple of major outbreaks like that and it's not fun, is it?

Ditto on keeping your eyes out for the egg masses. Physically remove any that you can, but dormant season spraying with horticultural oil can be very useful!

Cornell Coop Extension said to wrap trunks in duct tape and smear Tanglefoot or vaseline on it. Caterpillars are active till end of June, so it's not too late, I was told, to stop further destruction for your favorite trees. The caterpillars won't cross the Tanglefoot from the ground up.

A friend bought a huge back-carrier sprayer for trees and sprayed bacillus thuringiensis all over the trees. Her trees were the only ones to survive the initial eating frenzy and grow new leaves.

Give it a try today. Good luck.

Bt is only truly affective when the caterpillars are very small....much too late at the point where they begin to exit the trees and wander all over the neighborhood. Remember to obtain some Bt-k for next year!