Definition

1. Noun:
   • A destructive agricultural pest: The cotton bollworm is the larval (caterpillar) stage of a noctuid moth (Helicoverpa armigera). It is a highly polyphagous insect, meaning it feeds on a wide variety of crops, causing significant economic damage.

Usage

• The term "cotton bollworm" is used specifically in agricultural, entomological, and pest control contexts to identify this particular insect pest.
• It functions as a countable noun (e.g., , ).

Examples

• Noun:
  • Farmers are monitoring their fields for signs of the cotton bollworm.
  • The cotton bollworm is resistant to several common pesticides.
  • This tomato plant has been damaged by a cotton bollworm.

Advanced Usage

• Scientific context: The species is often referred to by its scientific name, , especially in research literature. The common name "cotton bollworm" highlights one of its primary host plants.
• Regional names: In different regions and on different crops, the same insect may be called by other common names, such as corn earworm (when infesting maize) or tomato fruitworm (when infesting tomatoes).

Variants and Related Words

• Bollworm (n): A more general term for moth larvae that infest the seed pods (bolls) of cotton and other plants. "Cotton bollworm" is a specific type of bollworm.
• Helicoverpa armigera (n): The scientific (Latin) name for the species.
• Larva (n): The immature, wingless, and often wormlike feeding form of an insect that undergoes complete metamorphosis. The cotton bollworm is a larva.
• Noctuid moth (n): A moth of the family Noctuidae, to which the adult form of the cotton bollworm belongs.

Synonyms

• Corn earworm (when referring to infestations in maize).
• Tomato fruitworm (when referring to infestations in tomatoes).
• Old World bollworm (a name used to distinguish it from the New World bollworm, ).

Related Phrases

• Bollworm infestation: A situation where a crop is heavily attacked by bollworms.
  • The farm suffered a severe bollworm infestation this season.
• Bollworm resistance: The ability of a pest population or a plant variety to withstand an attack or a pesticide.
  • Scientists are developing cotton varieties with bollworm resistance.

Noun

1. larva of a noctuid moth; highly destructive to especially corn and cotton and tomato crops