Larder Beetle - School IPM - USU Extension

    Larder Beetle

    Dermestes lardarius

    Larder beetle

    Larder beetle (Pest and Diseases Image Library, Bugwood.org)

    Larder beetle

    Larder beetle larvae damage to wood (Mohammed El Damir, Bugwood.org)

    Larder beetle

    Larder beetle larva (Mohammed El Damir, Bugwood.org)

    Identification

    • 3/8 - 1/2 inch long; elongate oval shape
    • adults: dark brown to black with pale yellow band around the wing covers containing six spots
    • larvae: dark brown; covered in long brown hairs; two spines on the end of the body that curve upward toward the rear of the body; 1/2 inch long

    Nesting Habits

    • typically found indoors feeding on rodent carcasses or on high protein food
    • bore into materials such as wood and insulation to nest and plug the nest entrance

    Diet

    • animal products including dead animals, meats, cheese, powdered milk, dried pet food and dried insects

    Significance

    • primarily breed in food storage areas or in areas where dead insects or rodents are found

    IPM Recommendations

    • Inspect all incoming food items for pests.
    • Locate and dispose of infested items.
    • Clean up all spilled food products and food storage shelves and storage areas in general.
    • Store all susceptible food items in pest-proof containers.
    • Keep food in regular rotation.
    • Change insect monitors and service mouse traps and multi-catch traps on a regular basis.

    Additional Resources

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