Utah State University Extension
This fact sheet describes the tomato hornworm and the tobacco hornworm that cause similar damage to the same host plants. It includes hosts, identification, life cycle, signs and symptoms, monitoring, and management.
Volesky, Nick and Murray, Marion, "Tomato Hornworm, Tobacco Hornworm (Manduca quinquemaculata and Manduca sexta)" (2019). All Current Publications. Paper 1960.