cottony-cushion scale

cottony-cushion scale

[kot-n-ee koosh-uhn]
noun
a scale insect, Icerya purchasi, native to Australia, now a common pest in the citrus-growing regions of California.

Origin:
1885–90

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World English Dictionary
cottony-cushion scale
 
n
a small scale insect, Icerya purchasi, that is a pest of citrus trees in California: it is controlled by introducing an Australian ladybird, Rodolia cardinalis, into affected areas

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