Definition

Noun: 1. The larva of a chalcid fly that bores into and damages the stems of cereal plants, especially wheat: A "jointworm" is the destructive, worm-like immature stage (larva) of certain small wasps (chalcid flies). These larvae feed inside the stems of grain crops, causing harm to the plant's structure and yield.

Usage Examples

• Noun:
  • The farmer identified the stunted growth in his wheat field as damage caused by the jointworm.
  • Researchers are studying biological controls to manage jointworm infestations.

Advanced Usage

• The term is primarily used in agricultural and entomological contexts to describe a specific pest. It is often discussed in relation to integrated pest management strategies for cereal crops.

Variants and Related Words

• Chalcid fly / Chalcid wasp (n): The type of small hymenopteran insect whose larva is the jointworm.
• Straw-worm (n): A less common synonym for jointworm, referencing its habitat within the plant's stalk.

Synonyms

• Straw-worm
• Stem borer larva (general category)

Notes on Meaning

• The name "jointworm" derives from its habit of boring into the "joints" or nodes of cereal plant stems.
• It is not a true worm but is the larval form of an insect.

Noun

1. larva of chalcid flies injurious to the straw of wheat and other grains