The boxelder bug frequently becomes a nuisance pest around homes and buildings near plantings of the boxelder, Acer negundo. In heavily infested areas, they sometimes are associated with ash (Fraxinus spp.) and maple (Acer spp.). This insect species is distributed throughout eastern United States west to Nevada.
The emerald ash borer has killed more than 40 million ash trees in Michigan, Ohio, Indiana, Illinois, Maryland, Virginia, Pennsylvania, West Virginia, Missouri, Wisconsin, Minnesota, Kentucky, New York, Tennessee, Iowa, Kansas, Connecticut, Massachusetts, New Hampshire, North Carolina, Georgia, Colorado, New Jersey, Arkansas, Louisiana, Texas, Nebraska, and Delaware.