Both adults and larvae feed exclusively on dried legumes in storage, burrowing through the outer cover and feeding on the inside. There may be many individuals feeding within a single bean and entire lots of the beans may be infested, ultimately leading to dozens of emergence holes that signal the destruction of the stored food.
Control of these stored food pests relies on recognizing the likely food products they infest, searching to find the infested materials, and disposing of that source. Good stock rotation will help to prevent the beetles from beginning the infestation. In a home many unusual sources need to be investigated, including decorative items that have dried legumes in them. Insecticides may be needed only to eliminate any remaining adult beetles that are wandering about.