armyworm: meaning, definition, pronunciation and examples
C2technical (agriculture, biology, entomology), journalistic
Quick answer
What does “armyworm” mean?
The larva of certain moth species, which often appear in large numbers and can cause extensive damage to crops.
Audio
Pronunciation
Definition
Meaning and Definition
The larva of certain moth species, which often appear in large numbers and can cause extensive damage to crops.
More broadly, the term can refer to any destructive caterpillar that moves in groups, forming destructive swarms.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning. The species of moth referenced might differ slightly by region, but the core concept is identical.
Connotations
In both regions, the word connotes agricultural pestilence, destruction, and a threat to food security.
Frequency
Slightly more frequent in North American media due to major agricultural regions being affected. In the UK, it's a technical term known to farmers and gardeners.
Grammar
How to Use “armyworm” in a Sentence
The [crop] was devastated by [armyworm].Farmers are battling an [armyworm] infestation.Vocabulary
Collocations
Examples
Examples of “armyworm” in a Sentence
verb
British English
- The field was completely armywormed. (very rare, non-standard)
American English
- The corn got armywormed last season. (very rare, non-standard)
adverb
British English
- The caterpillars moved armyworm-like across the field. (rare, hyphenated)
adjective
British English
- The armyworm threat is severe this year. (attributive noun use)
American English
- We need an armyworm management plan. (attributive noun use)
Usage
Meaning in Context
Business
Discussed in the context of agricultural commodity markets, crop insurance, and pesticide sales.
Academic
Used in entomology, agriculture, and environmental science papers discussing pest management and bioecology.
Everyday
Rare. Might be used by gardeners or in news reports about farming crises.
Technical
Precise identification of species (e.g., Spodoptera frugiperda) is crucial for control measures.
Vocabulary
Synonyms of “armyworm”
Vocabulary
Antonyms of “armyworm”
Watch out
Common Mistakes When Using “armyworm”
- Spelling as two words: 'army worm'. It is a closed compound.
- Using it as a general term for any worm.
FAQ
Frequently Asked Questions
No, it is not a true worm (annelid). It is the larval or caterpillar stage of certain species of moths.
Directly, no. They are not poisonous or aggressive to people. Their harm is economic and agricultural, through crop destruction.
Grasses, cereals (like maize, rice, wheat), and forage crops are most vulnerable, but they can attack a wide variety of plants.
Both are moth larvae. Cutworms typically cut off young plants at the base and are often solitary. Armyworms are named for their group behaviour, feeding on leaves and stems above ground in masses.
The larva of certain moth species, which often appear in large numbers and can cause extensive damage to crops.
Armyworm is usually technical (agriculture, biology, entomology), journalistic in register.
Armyworm: in British English it is pronounced /ˈɑː.mi.wɜːm/, and in American English it is pronounced /ˈɑːr.mi.wɝːm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “March like an armyworm (very rare, poetic).”
Learning
Memory Aids
Mnemonic
Imagine an ARMY of tiny WORMS marching in formation, devouring a cornfield.
Conceptual Metaphor
NATURAL PHENOMENON AS WAR (infestation as invasion, crops as territory).
Practice
Quiz
What is an 'armyworm' primarily known for?