ar·​my·​worm | \ ˈär-mē-ˌwərm How to pronounce armyworm (audio) \

Definition of armyworm

: any of numerous moths whose larvae travel in multitudes from field to field destroying grass, grain, and other crops especially : the common armyworm (Pseudaletia unipuncta) of the eastern and central U.S. and Canada

Examples of armyworm in a Sentence

Recent Examples on the Web Rebek said there are two kinds of armyworms: the true armyworm and the fall armyworm, the latter of which is the scourge homeowners are now facing. Christine Fernando, USA TODAY, 1 Sep. 2021 The bites of the armyworm are also a good clue, Pratt said. Sylvia Goodman, The Courier-Journal, 1 Sep. 2021 And the threat of swine fever and armyworm in China would diminish if the country wasn’t so dedicated to using the appetites of its people as a trade-war bargaining chip. Washington Post, 11 June 2019 The drought has also given rise to armyworms and other pests that can damage crops. Washington Post, 10 Oct. 2019 Some of those successes include fighting armyworms. Gwynn Guilford, Quartz, 20 June 2019 Warmer temperatures could accelerate armyworm reproduction. Gwynn Guilford, Quartz, 20 June 2019 Somehow the wrong picture was set with the armyworm story. Tom Maccubbin,, 7 June 2019 Pests monitored: Pheromone lures are available for diamondback moths and moths that produce armyworms, cabbage loopers, corn earworms, European corn borers, tomato pinworms, and cutworms. The Editors Of Organic Life, Good Housekeeping, 18 Dec. 2017 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'armyworm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of armyworm

1815, in the meaning defined above

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The first known use of armyworm was in 1815

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army of occupation



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Cite this Entry

“Armyworm.” Dictionary, Merriam-Webster, Accessed 27 Jun. 2022.

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