Hornworms - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension

Hornworms are the caterpillars of a family of moths called sphinx moths or hawk moths (Sphingidae). The caterpillars are so-named for the prominent horny spike that protrudes up from the end of the abdomen, and the hornworm caterpillar most likely to be seen in the home garden in Maine is the tobacco hornworm, Manduca sexta.