Tomato Hornworm
Tomato Hornworm

Tomato Hornworm

Tomato Hornworm is the caterpillar of the brown or gray hawk moth. Common throughout North America, the tomato hornworm is one of the most destructive pests of tomato, potato, pepper and eggplant plants.  They consume entire leaves, small stems, and sometimes chew pieces from fruit. The caterpillars blend in with the plant canopy, and can go unnoticed until most of the damage is done. As they feed, they create dark green or black droppings that can be very noticeable.
 

 

Removal

Handpick hornworms from infested plants (this is the most effective means of managing them). They are fairly easy to find because of their large size. Just throw them into soapy water to kill them.

Their natural enemies are parasitic wasps which lay their eggs on the hornworms back if found, such worms should be left in the garden so the emerging wasps can parasitize other hornworms.

Insecticides are not usually necessary, however if the above options are not effective you may consider applying a product. We recommend Garden Safe Insecticidal Soap Insect Killer or Garden Safe Bt Worm & Caterpillar Killer.

At the end of the gardening season till the soil to destroy over wintering larvae. Repeating again in spring.