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The brown marmorated stink bug (Halyomorpha halys) is a "true bug" that is indigenous to China, Korea, Taiwan, and Japan. Stink bugs get their name from scent glands that discharge an unpleasant odor when the insect is disturbed. In North America, the brown marmorated stink bug was identified for the first time in 2001 in Allentown, Pennsylvania. Currently, the marmorated stink bug has become a pest in the Mid-Atlantic United States and is spreading into other areas. Stink bugs suck sap from stems, leaves and fruit of many horticultural and agricultural plants. In all, they can attack an estimated 300 host-plant species. In addition, this bug is a nuisance pest as it aggregates in buildings in the fall.View More