corn earworm

noun

corn ear·​worm -ˈir-ˌwərm How to pronounce corn earworm (audio)
: a noctuid moth (Helicoverpa zea synonym Heliothis zea) whose large striped yellow-headed larva is especially destructive to corn, tomatoes, tobacco, and cotton bolls

Examples of corn earworm 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.
The corn earworm that ruined last year's harvest is back and so is the sap beetle. John Frank, Axios, 11 Aug. 2024 Beyond limiting the number of disease-carrying, skin-irritating mosquitoes, bats eat the insect pests that damage our crops, such as corn earworms. Benji Jones, Vox, 19 June 2024 Prevent corn earworms by depositing a little mineral oil in the silks five days after silks appear and begin to turn brown. Joshua Siskin, Orange County Register, 25 May 2024 The moth family in this study feeds on roughly 350 plant species across North and South America, including the tobacco budworm, the corn earworm, and the fall armyworm. Laura Baisas, Popular Science, 2 Aug. 2023 Watch for corn earworm on early corn. oregonlive, 1 Aug. 2022 The caterpillar was basically a pest species, related to a corn earworm, and not significant at all. Elizabeth Kolbert, The New Yorker, 13 Mar. 2023 Another substance, the protein PSP1, is ejaculated by the male corn earworm moth into his mate and there immediately shuts down the production of pheromones, meaning that other males (which totally rely on scent) can no longer find her. Menno Schilthuizen, Discover Magazine, 28 Apr. 2015 East of the Cascades: If necessary, spray for corn earworm as silking begins. oregonlive, 1 July 2021

Word History

First Known Use

1802, in the meaning defined above

Time Traveler
The first known use of corn earworm was in 1802

Dictionary Entries Near corn earworm

Cite this Entry

“Corn earworm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/corn%20earworm. Accessed 23 Nov. 2024.

Kids Definition

corn earworm

noun
corn ear·​worm -ˈi(ə)r-ˌwərm How to pronounce corn earworm (audio)
: a moth whose striped yellow-headed larva is especially destructive to ears of corn

More from Merriam-Webster on corn earworm

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!