Tomato hornworms are very large caterpillars with a horn-like tail. Their favorite plant is tomato. Hornworms chew leaves and can completely defoliate plants. They can also chew holes in the fruit.

A tomato hornworm can grow up to 5 inches long and as fat as your index finger. They have V-shaped, yellowish-white markings and a black 'horn' or spur on their posterior segment.

As Dominique demonstrates, start with a large pot to plant your tomatoes in. Place the tomato plant in the middle and plant ...

For example, whiteflies, aphids, tomato hornworms, flea beetles, and asparagus beetles. Marigolds' strong scent is science-proven to keep these bugs away. Plant this flower among or near tomatoes for ...