We live in southern Erie County and we got hit with little green inch worms in June. They ate 2/3 to 3/4 of all the leaves off of all the trees in our area, maple, oak, cherry and ash. While they were there all you could hear was their chewing. My yard, gutters and cars were covered with pieces of leaves and my boat had worm poop 1/4" deep everywhere. If those little monsters come back next year I'll have to buy a sprayer.