Be sure to also check at night when slugs and snails are out.
Scout the garden: Examine plants, including the underside of leaves, frequently for damage or disease and intervene early. Be sure to also check at night when slugs and snails are out. Many caterpillars are the same color as the leaf, so look closely for the pest and also for frass (the residue left by a pest after it eats plant parts). Learn to distinguish plant damaging pests from beneficial insects including pollinators such as bees that help fruit set, predators such as ladybird beetles that eat pests, and parasitic insects such as small wasps that lay eggs on pests.