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单词 Hessian fly
释义

Definition of Hessian fly in English:

Hessian fly

noun
  • A gall midge whose larvae are a pest of cereal crops, occurring in all wheat-growing areas.

    麦瘿蝇

    Mayetiola destructor, family Cecidomyiidae

    Example sentencesExamples
    • The Hessian fly spread from Long Island in 1777, and a more widespread impact began to be felt in 1778.
    • Plant breeders are constantly engaged in a vicious cycle, developing wheats that resist the Hessian fly… for a time.
    • Resistance in wheat to the Hessian fly, a major insect pest of wheat, is based on a gene-for-gene interaction.
    • Earlier seedings are more subject to root and crown rot and many other diseases and insects, for example wheat streak mosaic and Hessian fly.
    • It is resistant to stem rust, leaf rust and soilborne wheat mosaic virus, moderately resistant to wheat streak mosaic virus and susceptible to Hessian fly.

Origin

Late 18th century: so named because it was supposed (erroneously) to have been carried to America by Hessian troops during the War of Independence.

Definition of Hessian fly in US English:

Hessian fly

nounˈheSHən flī
  • A gall midge whose larvae are a pest of cereal crops, occurring in wheat-growing areas.

    麦瘿蝇

    Mayetiola destructor, family Cecidomyiidae

    Example sentencesExamples
    • Earlier seedings are more subject to root and crown rot and many other diseases and insects, for example wheat streak mosaic and Hessian fly.
    • It is resistant to stem rust, leaf rust and soilborne wheat mosaic virus, moderately resistant to wheat streak mosaic virus and susceptible to Hessian fly.
    • The Hessian fly spread from Long Island in 1777, and a more widespread impact began to be felt in 1778.
    • Resistance in wheat to the Hessian fly, a major insect pest of wheat, is based on a gene-for-gene interaction.
    • Plant breeders are constantly engaged in a vicious cycle, developing wheats that resist the Hessian fly… for a time.

Origin

Late 18th century: so named because it was supposed (erroneously) to have been carried to America by Hessian troops during the War of Independence.

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