Experts and BHG readers answer.
Worms are eating plants
Most worms are fairly specific in which type of plants they feed on. Tomatoes, for example, may be attacked by large green worms called tomato hornworms. These hornworms may also attack close relatives of tomato, such as eggplant or pepper, but typically will not feed on other plants. Imported cabbage worms are also green, but much smaller. They feed on cabbage family crops such as cabbage, broccoli, cauliflower, and ornamental kale, cut again, leave other crops alone. Geranium budworm attacks geraniums , petunias, and nicotiana. Most any type of worm can be controlled with Bt (Bacillus thuringiensis), a type of bacteria, if you apply it before the worms get too large.