Definition of mealybug
: any of a family (Pseudococcidae) of scale insects that have a white cottony or waxy covering and are destructive pests especially of fruit trees
Recent Examples of mealybug from the Web
The aphid-like insect was identified as an Asian scale, also known as a mealybug, in April.
Look beyond the black coating for insects including mealybugs, whiteflies and scale that are sucking juices from the plant.
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First Known Use of mealybug
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