Note to self: Do not look up ways to prevent apple pests whilst eating breakfast. Not only are the pictures of the caterpillars yucky, but reading the words of one cheeky organic grower put me right off my feed. What were the words, you ask? Why of course they were "where's the other half of the worm?" blarf. Anyway, after wasting about an hour on the internet trying to become an expert on organic orchard maintenance, I think I'll just call my local Extension office and let them tell me what to do.
On a happier note, reading about apples and orchards always makes me sing this song.