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
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Recent Examples of armyworm from the Web
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Syngenta invested over $100 million and 15 years in developing Viptera, which has a trait called MIR162 that protects against pests such as earworms, cutworms, armyworms and corn borers.
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Syngenta invested over $100 million and 15 years in developing Viptera, which has a trait called MIR162 that protects against pests such as earworms, cutworms, armyworms and corn borers.
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Syngenta invested over $100 million and 15 years in developing Viptera, which has a trait called MIR162 that protects against pests such as earworms, cutworms, armyworms and corn borers.
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The invasion of the fall armyworm is, naturally, causing considerable panic among African officials.
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The fall armyworm is a small, unassuming caterpillar that grows to just 1.5 inches long.
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Soldiers toting pesticide pumps in backpacks are working to eradicate a recent invasion of armyworms, inch-long brown-and-yellow-striped caterpillars that are exacerbating Southern Africa’s worst grain shortage in a decade.
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
Learn More about armyworm
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See words that rhyme with armyworm Britannica.com: Encyclopedia article about armyworm
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