Ever since the brown marmorated stink bug (Halyomorpha halys) was first discovered in Allentown, Pennsylvania in the late 1990s, it has spread to more than 40 states and parts of Canada. It has devastated orchards, crops, and fields, and has become a terrible nuisance in gardens, backyards, and homes. It has an appetite for as many as 300 different plants, and it’s been blamed for causing an estimated $37 million in losses in the Mid-Atlantic region for apples alone.