Tomato hornworms are a large caterpillar that eats many parts of the tomato plant. Handpicking is one of the best methods of control. The large size of these pests allow them to rapidly defoliate tomatoes, potatoes, eggplants, and peppers. They are often seen feeding on the green fruit. You might notice large areas of damage on the top of the plant first. Also look to the ground under the plant for the feces. The feces resemble little brown pellets.
They also emit a clicking sound so listen to your tomato crop as well as look around. The hornworm is also large. They average around the size of an adult human finger.
