I love this man's (Mr. Brown Thumb) attitude toward gardening. In this article he talks about letting parasitic wasps have their evil way with tomato hornworms. He says, "Bugs happen when you garden":
My absolute favorite method of controlling hornworms on my tomato plants is to save a few of these caterpillars and let nature take its course. Pull the hornworm from your plants and place it inside a jar or plastic bottle without a lid to allow for ventilation. Every couple of days add a few tomato cuttings to the container to allow the caterpillar to continue to eat. And then sit back and watch as the hornworm is eaten from the inside by the pupating parasitic wasps. It's so disgusting, but it's so much fun to watch.
Read on: Tomato Hornworms and Parasitic Wasps
POLLENATRIX 