Tent caterpillars

[BrianWI]

Look slike it might be a bad year for tent caterpillars. Lots of egg cases on my trees

 

[ArachnidSentinl]

I've heard that they're real bad in WI. We have them in IL sometimes, too, but nothing on the level of you northerners.

 

[bugmankeith]

Last year in NY we had them all in the streets, for me I like seeing it, like a bunch of wildebeest on a migration. ;

Some years you hardly see any, it all depends on the weather, and I havent seen a tree die from them yet, they always grow back the leaves.