army cutworm
Học thuậtThân thiện
Definition
Noun: 1. A destructive insect larva: The "army cutworm" is the larval stage of a noctuid moth (Euxoa auxiliaris). These larvae are known for moving in large, coordinated groups (like an army) and are significant agricultural pests. 2. An agricultural pest: Specifically, these caterpillars cause damage by feeding on and destroying crops, particularly grains (like wheat) and alfalfa, in the midwestern regions of the United States.
Usage Examples
- The farmer was concerned about an infestation of army cutworm in his wheat field.
- Researchers are studying the migration patterns of the army cutworm to develop better control methods.
- A large group of army cutworm larvae can devastate an alfalfa crop in a short period.
Advanced Usage
- The term is often used in agricultural science and pest management contexts. It specifically refers to the larval form, not the adult moth.
- The "army" in the name directly describes the larval behavior of marching in large numbers across fields.
Variants and Related Words
- Cutworm (n): A general term for the larvae of various noctuid moth species that "cut" down young plants by feeding on stems at soil level. The "army cutworm" is a specific type of cutworm.
- Noctuid moth (n): The family of moths (Noctuidae) to which the adult form of this insect belongs.
- Euxoa auxiliaris (n): The scientific (Latin) name for the moth species.
Synonyms
- Pest caterpillar
- Destructive larva (in the specific context of this species and its behavior)
Related Phrases/Compounds
- Army cutworm moth: Refers to the adult moth stage of the insect.
- Cutworm damage: The type of crop injury caused by these and similar larvae.
Noun
- larvae (of a noctuid moth) that travel in large groups and destroy grains and alfalfa in the midwestern states