Definition of diamondback moth in English:

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diamondback moth

noun

A small, grayish moth that displays a pattern of diamonds along its back when the wings are folded. The caterpillar can be a pest of brassicas and other cultivated vegetables.
  • Plutella xylostella, family Yponomeutidae.
Example sentences
  • They can also harbour aphids and insects like the diamondback moth, a pest of canola.
  • The researchers tested the GM plants by exposing them to caterpillars of the diamondback moth.
  • Without its natural enemies, such as ground beetles, spiders and minute parasitic wasps, the diamondback moth is content to munch away on a never-ending supply of cabbage worldwide.

For editors and proofreaders

Syllabification: dia·mond·back moth

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