Like many other carpet beetles and the Trogoderma beetles, the Black Carpet Beetle attacks the wide variety of products of animal origin and plant origin, such as hair, wool, feathers, insects, baked products, grains, cereals, spices, etc. It appears to have been much more important as a pest in past decades than it is now. Occasionally it will be found infesting rodent baits, including baits made as a paraffin formulation, or “bait block”. There is a very long life cycle in this species, with the minimum time for larval development at room temperature around 9 months, and up to almost 2 years. The adults do not feed on the same materials as do the larvae, and the adults live for only about 1 month.
As with the common carpet beetles the importance of finding the source of the infestation is high, as it usually is in a hidden location and not likely to be contacted by sprayed pesticides. Susceptible foods, clothing, decorations and furnishings must be inspected for the presence or evidence of the larvae, and the storage of these materials in a manner that excludes the pest is very successful in preventing damage.