House Flies - School IPM - USU Extension

    House Fly

    Musca domestica

    house fly

    Adult house fly (Pest and Diseases Image Library,

    house fly

    House fly life cycle: eggs (top middle), adults (right), larvae (bottom left), pupae (top left) (Clemson University Slide Series,


    • 1/4 inch long
    • four black stripes on the prothorax
    • similar in appearance to the face fly

    Nesting Habits

    • eggs laid on animal manure or decaying organic matter (especially garbage and dumpsters)


    • larvae feed on manure and decaying organic material
    • adults feed on manure, decaying organic material and human food products


    • can spread disease from one food source to food preparation areas, other food, etc.
    • nuisance inside buildings

    IPM Recommendations

    • Keep exterior doors closed, install screen doors, or install an automatic door closer, especially on doors leading into the kitchen.
    • Keep screens in good repair.
    • Improve sanitation.
    • Keep dumpsters at least 50 feet from the building.
    • Locate breeding susbstrate, if possible, and remove.
    • Keep trash cans, dumpsters and garbage areas clean and free of odor.
    • Close lids on dumpsters and garbage cans.
    • Exclude fly entry via caulking, weather stripping, door sweeps, etc.
    • Properly place light traps to catch flies that come indoors.
    • Use a fly swatter.

    Additional Resources

    IPM for Flies: Integrated Pest Management in Sensitive Environments (University of Nebraska-Lincoln Extension)