The nightshade family of plants is particularly vulnerable to hornworms, which cause severe harm in a short time. Newly born worms will thrive on the fragile leaves of tomatoes, peppers, potatoes, and eggplants.
Tobacco and tomato hornworms are the two main species of Hornworm. Despite their resemblance in appearance, you can tell them apart by the little horn on their heads. The horn of a tobacco hornworm is red, but the horn of a tomato hornworm is green or black.
If you have a tomato hornworm infestation and are unable to discover the pests, you can use a low-cost black light flashlight to search your garden at night for the perpetrators.
Translucent hornworms can be seen under a black light. The worms glow brightly against the foliage thanks to the UV light. Simply stroll your rows and shine a light on the foliage to see how it changes color. It’s awe-inspiring to watch them light up!