The importance of the Foreign Grain Beetle to the stored food industries is fairly low, for these beetles feed primarily on molds and fungi. However, stored foods that are slightly damp may support sufficient molds for the beetles to be attracted and sustain themselves. The presence of the beetles has been traced to fungi growing on damp wood members in structures, and to caches of pet foods stored in wall voids by rodents.
Control of moisture is important, given the dietary preference of this beetle. Old, spoiled foods need to be discarded, and the source of the infestation when beetle adults are found simply wandering around must be determined and removed.