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Gypsy moth

Gypsy moth (Porthetria dispar), winged insect originating in Europe and later introduced to North America. In the New World, in the absence of natural enemies, it has become a serious pest; the caterpillars feed on the leaves of the deciduous trees, particularly fruit trees, and their occasional mass outbreaks can lead to complete defoliation.

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21st Century Webster's Family Encyclopedia21st Century Webster's Family Encyclopedia - Grand Rapids to Hadron