Spotted lanternfly is an insect pest introduced to the U.S. from Asia. It threatens grapes, hops, hardwoods (especially tree-of-heaven), walnut, and maple. It has not yet been found in Wisconsin, but has been identified in Illinois. The Wisconsin Department of Agriculture, Trade and Consumer Protection is monitoring for this pest. We need the help of business and consumers, because prevention and early detection are vital to keeping spotted lanternfly from becoming established in Wisconsin. Even though it may look like a butterfly or moth to some people, Spotted lanternfly is a type of true bug called a planthopper. Despite having four wings, it prefers to move by jumping rather than by flying.
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