All insects have six legs, but other than that they are extremely variable.
They include such organisms as beetles, flies, bees, ants, moths, and butterflies. But for the purposes of this tip sheet, they will be considered as insects. Insects damage plants in several ways. The most visible damage is chewed plant leaves and flowers. Many pests are visible and can be readily identified, including the Japanese beetle, Colorado potato beetle, and numerous species of caterpillars such as tent caterpillars and tomato hornworms.