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Official website

of the Commonwealth of Pennsylvania

    The .gov means it's official.

    Local, state, and federal government websites often end in .gov. Commonwealth of Pennsylvania government websites and email systems use "pennsylvania.gov" or "pa.gov" at the end of the address. Before sharing sensitive or personal information, make sure you're on an official state website. 

    Education and Outreach Library

    Use the search and filters below to discover more about the invasive plants, animals, insects, and other species negatively impacting Pennsylvania’s economy, environment, and human health and welfare.
     

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