Early detection and removal is crucial. There are natural and chemical control methods. Planting certain herbs and flowers near your tomatoes can deter hornworms. As tomatoes grow tall and the yellow ...

If you grow tomatoes, peppers, eggplants, or other nightshades, there’s a good chance that you’ve encountered large green caterpillars feeding on your plants. Known as the tobacco or tomato hornworm, ...

Have you seen big green worms on your tomato plants? These are likely hornworms – either tobacco hornworms or tomato hornworms. Believe it or not, tobacco hornworms are what you find most often on ...

Tomato hornworms, Manduca quinquemaculata, are large green caterpillars that devour tomato plants along with other nightshades including peppers, potatoes, and eggplant. They can also be a little ...

Tomato hornworms (Manduca quinquemaculata) can cause serious issues for your tomatoes. Not worms at all, these are caterpillars that can quickly eat tomato plants down to nubs. What many gardeners don ...

This tiny wasp is natural pest control for the hornworm caterpillar, bane of summer gardeners. Tomato growers know the tobacco hornworm can destroy a plant overnight. But a tiny natural ally helps ...

Have you ever gone out to your tomato patch in the morning to find a plant that consists only of stalk and leaf veins? If you have, then you are probably familiar with tomato hornworm. This voracious ...

Editor’s note: Throughout the growing season, Mike Hogan, OSU Extension Educator for Agriculture and Natural Resources in Franklin County will answer gardening and home landscape questions submitted ...