How To Control Tomato Hornworms
Hornworms are the larval stage of the sphinx or hawk moth.
Once you know what a tomato hornworm looks like, you'll be able to readily identify them
Damage to plants or fruit is usually the first way you'll know these well-camouflaged pests are present.
If you don't care to touch these harmless (to you) caterpillars, try wearing gloves.
Row covers can keep sphinx moths and hornworms out of your garden.
BT Thuricide is organic and works well against many garden caterpillar pests
As a widely useful organic pest control, Diatomaceous Earth is a good product to have on hand.
Borage and other flowers and herbs help control pests in the tomato patch