Definition of cottony-cushion scale in English:

cottony-cushion scale

Line breaks: cottony-cushion scale

noun

[mass noun]
An Australian scale insect with a large fluted cottony egg sac, infesting citrus trees. It threatened to destroy the Californian citrus industry until it was controlled by the introduction of the Australian vedalia beetle.
  • Icerya purchasi, family Margarodidae, suborder Homoptera
More example sentences
  • In the late 1880s, for example, predaceous ladybird beetles imported from Australia had decimated the cottony-cushion scale insect that was consuming citrus crops in California.

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