cottony-cushion scale


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cottony-cushion scale

n
(Animals) 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
References in periodicals archive ?
Riley was the guiding force behind one of the United States' earliest and most notable successes in biological control: importation in 1888-89 of the Vedalia beetle, Rodolia cardinalis, from Australia into California to battle the cottony-cushion scale, a pest threatening California's then-fledgling citrus industry.