fall armyworm

noun

Definition of fall armyworm

: a migratory American noctuid moth (Spodoptera frugiperda) that is destructive to grains and grasses as a larva

Examples of fall armyworm in a Sentence

Recent Examples on the Web The researchers inserted a gene for a human immune protein, interferon, into the virus and then used it to infect cells from the caterpillar form of a pest called the fall armyworm moth. Meredith Wadman, Science | AAAS, "Will a small, long-shot U.S. company end up producing the best coronavirus vaccine?," 3 Nov. 2020 Corn and Beans The beans attract beneficial insects that prey on corn pests such as leafhoppers, fall armyworms, and leaf beetles. The Editors, Good Housekeeping, "26 Plants You Should Always Grow Side-By-Side," 24 Apr. 2020 Hot on its heels is the fall armyworm, a crop pest that could spread across the whole of the country’s 130 million hectare crop belt within a year, eating up supplies of corn and sugar cane. Washington Post, "Diseases Are Killing Our Food, But Don’t Panic," 11 June 2019 The other is the fall armyworm, which is even more omnivorous and a rapidly growing problem in Africa. Erik Stokstad, Science | AAAS, "Genetically engineered moths can knock down crop pests, but will they take off?," 30 Jan. 2020 Farmers are now being assailed by fall armyworm, a hungry caterpillar. The Economist, "Better seeds could help African farmers grow far more," 28 Sep. 2019 Created by multinational companies, these are genetically modified to resist fall armyworm. The Economist, "Better seeds could help African farmers grow far more," 28 Sep. 2019 The study found that a particular form of CIS that acts outside of bacterial cells can kill two widely divergent kinds of animal cells, from mice and the fall armyworm. San Diego Union-Tribune, "Biotech notebook: Cancer discovery, bacterial syringes and organoids," 13 July 2019 Experts are also watching the spread of a pest called the fall armyworm, a sort of caterpillar that likes to eat rice, sorghum and corn crops. New York Times, "A Slower Economy. A Trade War. Now, China Faces Rising Food Prices.," 4 June 2019

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

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First Known Use of fall armyworm

1881, in the meaning defined above

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The first known use of fall armyworm was in 1881

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Cite this Entry

“Fall armyworm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fall%20armyworm. Accessed 26 Jan. 2021.

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