May 21 2013 03:34pm Uh-oh. If this sight greets you in the tomato garden there's a caterpillar in the neighborhood! Holes in leaves, some yellowing and black specks (poop!) on the leaves mean you better find the perpetrator soon. Spray bt (a naturally occurring bacillus) that you mix with water from a concentrate. Inspect the plants at night when caterpillars are more active. Check under leaves. Fill the birdbath and feeder to invite birds in to look for them. A multi-pronged approach will keep the worm or worms from eating the whole garden.