Carpet Beetles - School IPM - USU Extension

    Carpet Beetles

    Dermestidae

    Fact Sheet: English, Spanish.

    Carpet Beetles

    Top left: Furniture beetle and Top right: Black carpet beetle (Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org) Bottom left: Warehouse beetle (Whitney Cranshaw, Colorado State University, Bugwood.org) Bottom right: Carpet beetle larva (Joseph Berger, Bugwood.org)

    Larve and larval hairs

    Left: Carpet beetle larvae (Whitney Cranshaw, Colorado State University, Bugwood.org) Right: Carpet beetle larval hairs (Pest and Diseases Image Library, Bugwood.org)

     

    Identification

    • 1/16 – 1/4 inch long
    • color highly variable: black to multicolored beetles
    • often found in window sills
    • larvae: small, hairy, tan to black; appear striped

    Nesting Habits

    • live indoors and outdoors
    • stored foods, animal hides/materials/textiles, dead animals in voids, grain-based rodenticides, under carpeting, baseboards, and furniture, under seat cushions of upholstered furniture or anywhere hair, lint, dead insects and food crumbs collect are prime areas
    • areas of minimal use such as attics, basements, cubbies, under unused or seldom moved furniture or appliances, etc., are also prime locations

    Diet

    • varies by species (see above)

    Significance

    • can damage fabrics and furniture
    • can infest and destroy food items
    • larval hairs can cause throat irritation if consumed

    IPM Recommendations

    • Locate source of beetles and remove infested items.
    • Locating the source of beetles can be very difficult.
    • Seal cracks around the outside foundation wall.
    • Install tight-fitting door sweeps at the base of all exterior doors.
    • Vacuum individuals that enter buildings.
    • Store food in pest-proof containers.
    • Thoroughly clean food storage and preparation areas.

    Additional Resources

    IPM for Fabric and Pantry Pests: Integrated Pest Management in Sensitive Environments (University of Nebraska-Lincoln Extension)