army worm

Thân thiện

A farmer inspects an army worm on a corn leaf.

Definition

Noun 1. A destructive caterpillar: The term "army worm" refers to the larval (caterpillar) stage of certain moths, particularly from the family Noctuidae. These larvae are known for moving in large, coordinated groups that resemble marching armies, consuming vegetation in their path. 2. An agricultural pest: Specifically, "army worm" denotes these caterpillars in their role as significant pests that destroy crops, especially grasses and grains.

Usage Examples

• As a subject:
• As an object:
• With a modifier:

Advanced Usage

• Collective behavior: The term inherently implies mass movement. It is rarely used for a single, isolated caterpillar but for the group phenomenon.
  • The threat isn't from one army worm, but from the thousands that move together.

Variants and Related Words

• Armyworm: A common alternative spelling, written as one word.
• Fall armyworm (): A specific, highly destructive species.
• True armyworm (): Another common species.
• Larva / Caterpillar: The general biological terms for this life stage.
• Noctuid moth: The type of adult moth that army worms become.

Synonyms

• Pest caterpillar
• Crop larva (in this specific destructive context)

Notes on Meaning

The core meaning combines the biological identity (a moth larva) with its characteristic behavior (mass migration and destruction). The term is primarily used in agricultural, environmental, and entomological contexts.

Học thuật

Noun

1. noctuid moth larvae that travel in multitudes destroying especially grass and grain

Từ đồng nghĩa

• armyworm
• Pseudaletia unipuncta