"My 80-year-old mom swears by it!" Gardener shares how ancient technique can save your tomatoes from pests: 'It will eat up ...

Their favorite plant is tomato. Hornworms chew leaves and can completely ... kurstaki (Bt) is a bacterium that occurs naturally in the soil. Caterpillars must eat the product for it to be effective.

“We’ve known for a long time that herbivores do eat other insects, but so far people studying herbivory have kind of ignored that because it’s a lot easier to put herbivores in a neat bin in which ...