Definition of cottony-cushion scale in English:

cottony-cushion scale

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Entry from British & World English dictionary


[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

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