I put up some green plastic (in a grid pattern) to keep the rabbits out of my backyard. It worked for a while, then I found a rabbit in my backyard (which should be impossible). When I investigated, I found this:
Take note of the green plastic pieces on the ground. The rabbit chewed it's way through!
After seeing this, I noticed that my pepper plant near my gate was being eaten. I thought it was the rabbits, but I was wrong! I have more hornworm caterpillars!