I have 3 dwarf apple trees, a red delicious, golden delicious, and a macintosh. They are on the edge of my vegetable garden. All 3 leafed out beautifully, and then bam! something ate holes in the new leaves and ate the buds from the blossoms as well seemingly overnight.

I am assuming it was some kind of caterpillar that I missed. I haven't seen any though. Could it have been sparrows? Do they eat tree buds? We had a lot of them in our yard for a couple of days. It seemed like overnight the tree leaves and buds were wrecked.

Also, what should I do with my trees now? Prune those leaves off and wait till next year?

I am very new at this. Any help is appreciated. Thanks!