jointworm
Học thuậtThân thiện
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
- larva of chalcid flies injurious to the straw of wheat and other grains