Yep i made the same mistake aswell. My tomatoes in the greenhouse have been munched all over, leaves, fruit the works!! I wouldnt mind as much if they ate the whole fruit but nooooooo, they have a nibble out of 1 & the crawl over to the next 1. The only time i seem to be able to spot them is when they munch on a ripe tomato & they get a pinkish tinge to them, the little feckers!!! Yet appart from a bit of blossopm end rot my toms that r planted out in the open havent been touched by anything, go figure!!!