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  1. Tomato Hornworms: How to Identify, Control, and Prevent Them

    Oct 2, 2025 · The tomato hornworm (Manduca quinquemaculata) and the closely related tobacco hornworm (Manduca sexta) are garden pests found throughout most of the U.S. and southern …

  2. How to Get Rid of Tomato Hornworms Once and for All

    Jun 16, 2025 · Vegetable gardeners everywhere look forward to harvesting tomatoes each summer. But one pest that can ruin the fruits of your labor (literally) is the tomato hornworm. The caterpillars feast …

  3. Should You Kill Tomato Hornworms? Why Experts Say No

    Jul 3, 2025 · Once a hornworm has been injected with braconid wasp eggs, its life cycle starts to deteriorate. If you find a hornworm in your tomato patch covered with wasp cocoons, leave it alone.

  4. Manduca quinquemaculata - Wikipedia

    The caterpillar, often referred to as the tomato hornworm, can be a major pest in gardens; they get their name from a dark projection on their posterior end and their use of tomatoes as host plants.

  5. How to Identify and Get Rid of Tomato Hornworms

    Oct 4, 2025 · Find out how to recognize and control tomato hornworms. Tomato hornworms are the larvae of hummingbird moths and can destroy tomato plants quickly. The best way to get rid of …

  6. Tomato hornworms in home gardens | UMN Extension

    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. …

  7. How to Control and Prevent Hornworms - GardenTech.com

    Meeting a hornworm face to face in your tomato patch is a moment you won't forget. These worms grow up to 4 inches in length, can get as fat as a finger and have curved, posterior horns to boot. Two …

  8. Hornworms – Wisconsin Horticulture

    A large red or black horn-like spine protrudes from the posterior (rear) end of caterpillars, giving rise to the name “hornworm”. Adult hornworms are large, heavy-bodied hawkmoths with a wingspan of up …

  9. Hornworm | Insects | Illinois Extension | UIUC

    Hornworms are the larvae/caterpillars of hawk- or hummingbird-like moths. They are large, up to 4 inches long, green, white-barred worms with a slender horn pointing upward at the rear end. The …

  10. Hornworms / Home and Landscape / UC Statewide IPM Program (UC …

    Hornworm eggs are attacked by Trichogramma parasites and the larvae by Hyposoter exiguae. There are also several general predators to keep populations under control.