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 ...

Vegetable gardeners everywhere look forward to harvesting tomatoes each summer. But one pest that can ruin the fruits of your labor (literally) is the tomato hornworm. The caterpillars feast on the ...

Q: What kinds of caterpillars should I be controlling now? I know they will start becoming a problem soon. A: The principal insect that infests many vegetables in the tomato family, as well as grapes, ...

I saw your recent column about tomato fruitworms, and was wondering if this pest also eats leaves. The leaves of one of my tomato plants are being eaten by something. A couple of the branches now have ...

A reader of our column from Ashland dropped me an email about these huge green worms in her garden a number of years ago and wondered what she could do about them. She pulled five off her plants and ...

Dear readers: Not long ago, I was asked how to grow healthy tomato plants and keep tomato hornworms at bay without harming them. I suggested having a sacrificial tomato plant that could be grown as a ...

Ah, summer in Iowa! For the home gardener it is the best of times and the worst of times - sorry Charles Dickens. My coneflowers, dill and tropical milkweed are all in bloom and beginning to attract a ...

Yes, this is a hornworm. And yes, it looks a lot like a tomato worm or a tobacco worm. And lucky for this hornworm, it doesn’t feast on tomato leaves. It eats the leaves of several native plants, ...