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of the Commonwealth of Pennsylvania

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    Skeeter Meter

    This Week's Level is: Low

     
    West Nile Skeeter Meter Normal
    The West Nile virus risk in Pennsylvania this week is LOW. This means that West Nile virus activity has not been found in PA. It's important to control mosquitoes around your home. Once a week, dump, drain, or treat artificial containers such as tires, buckets, bird baths, ornamental ponds, flowerpots, tarps, toys, etc. to reduce areas where mosquitoes can live.
    Lyme Disease Risk - May 2025

    Beginning in April, DEP’s Tick Surveillance and Testing Program surveys and targets the nymphal life stage of the Blacklegged tick.  These ticks are highly implicated with the transmission of tickborne illness due to their small size.  Host seeking nymphs are collected from the environment in all 67 counties in Pennsylvania.  Every nymph is tested for the presence of the pathogens that cause Lyme Disease, Anaplasmosis, and Babesiosis.

    The map above shows the relative risk of encountering a nymph in May that is infected with Lyme Disease.  The risk is determined by calculating the density of infected nymphs (DIN).  DIN is an ecological indicator of Lyme disease risk.  The DIN is calculated using the average density of host seeking nymphs that were collected from 2020-2024 delineated by DEP Region.  

    Ticks Active Now

    Mosquitoes, Ticks, and Black Flies


    Submit Complaints

    Mosquito Complaints

    Report a Dead Bird

    Black Fly Complaints


    Mosquito County Contacts

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