hornworm

noun

horn·​worm ˈhȯrn-ˌwərm How to pronounce hornworm (audio)
: a hawk moth caterpillar having a hornlike tail process compare tomato hornworm

Examples of hornworm in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Every creature has its prey and predators and hornworms aren’t an exception. Lauren David, Southern Living, 1 June 2026 Scout for common pests like aphids (wash them off with the hose), spider mites, hornworms, and more. Andy Wilcox, Better Homes & Gardens, 1 May 2026 In turn, basil can repel tomato pests such as hornworms. Michelle Mastro, Martha Stewart, 30 Apr. 2026 Aphids, whiteflies and hornworms are among the most common pests attracted to tomato plants. Lauren Jarvis-Gibson, Miami Herald, 10 Apr. 2026 Aphids, whiteflies and hornworms are among the most common invaders, drawn in by nutrient-rich foliage and strong plant volatiles that attract sap-sucking insects. Lauren Jarvis-Gibson, Kansas City Star, 10 Apr. 2026 Allow the life cycle of the wasp to complete and other hornworms and garden pests will become prey to this beneficial wasp. Barbara Gillette, The Spruce, 9 Mar. 2026 It is also thought that the pungent aroma of basil leaves may help to deter pests such as whiteflies, aphids, and hornworms. Joshua Siskin, Oc Register, 27 Feb. 2026

Word History

First Known Use

1676, in the meaning defined above

Time Traveler
The first known use of hornworm was in 1676

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Cite this Entry

“Hornworm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hornworm. Accessed 4 Jun. 2026.

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