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Hokkaido gypsy moth
Lymantria umbrosa

Hokkaido gypsy moth (Lymantria umbrosa) is an insect pest of hardwood trees, shrubs, and plants. It is a native of Asia and was first detected in Washington in 2019.

Defoliation by gypsy moths can weaken trees, making them susceptible to subsequent infection by various pathogens.

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