armyworm

noun

ar·​my·​worm ˈär-mē-ˌwərm How to pronounce armyworm (audio)
: 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 No one wants to lose their watermelons to pests like aphids, armyworms, or cucumber beetles, so keep your eyes peeled for these pesky insects. Lauren Landers, Better Homes & Gardens, 8 July 2024 Basil is also known to deter aphids, spider mites, and whiteflies and reduce egg-laying by armyworms. Kim Toscano, Southern Living, 28 June 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 To find out what was going on, entomologist Madoka Nakai and her team at the Tokyo University of Agriculture and Technology infected northern armyworm larvae with a common pox virus before introducing the immature insects to various parasitic wasp species. Mennatalla Ibrahim, Science | AAAS, 29 July 2021 See all Example Sentences for armyworm 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'armyworm.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1815, in the meaning defined above

Time Traveler
The first known use of armyworm was in 1815

Dictionary Entries Near armyworm

Cite this Entry

“Armyworm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/armyworm. Accessed 26 Jul. 2024.

Kids Definition

armyworm

noun
ar·​my·​worm -ˌwərm How to pronounce armyworm (audio)
: any of numerous moths that in the larval stage travel in large numbers from field to field destroying crops (as grass or grain)

More from Merriam-Webster on armyworm

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