Deer Mouse - School IPM - USU Extension

    Deer Mouse

    Peromyscus maniculatus

    Fact Sheet: English, Spanish.

    Deer Mice

    Adult deer mouse (David Cappaert, Michigan State University,

    deer mouse

    Deer mouse (6th Happiness, Wikimedia Commons)

    Deer mouse

    Deer mouse (Jack Kelly Clark, UC Statewide IPM Project)


    • brown to gray colored body with a white belly, furry tail and ears smaller than that of a house mouse
    • 6 inches long, including tail
    • multiple species exist

    Nesting Habits

    • prefer rural areas including fields, pastures and vegetative areas around buildings
    • move indoors when it gets cold outside


    • seeds, fruits, vegetation, berries, nuts and insects


    • known carrier of Hantavirus Pulmonary Syndrome, a rare but potentially fatal lung disease found in mouse feces and urine

    IPM Recommendations

    • Deer mice are only occasional invaders in buildings.
    • Install tight-fitting door sweeps.
    • Seal exterior cracks, crevices and areas around pipes and electrical conduits that enter buildings through walls.
    • Reduce clutter indoors and outdoors.
    • Minimize nesting habitat around property.
    • Keep all exterior doors closed.
    • Store food in pest-proof containers.
    • Use snap-traps placed with triggers toward baseboards, especially in dark corners.
    • Train kitchen and custodial staff to clean thoroughly.
    • Clear high weeds that serve as food and shelter during warm weather.

    Additional Resources:

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