How to Manage Pests

Pests in Gardens and Landscapes

Pest identification and confirmation—Hornworms

Tomato hornworms are likely to be the largest caterpillars you see in the vegetable garden. Their striping pattern makes them hard to spot despite their size. Note the horn or thorn at the rear end. Large, black droppings on the ground beneath tomato plants usually indicate the presence of hornworms. Adult moths have a wingspan up to 5 inches.

Thorn and striped pattern on hornworm
Thorn and striped pattern on hornworm

Pupae can be identified by the thorn
Pupae can be identified by the thorn

 


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