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  • Jefferson County Weed and Pest Management


    The Jefferson County Weed and Pest Management program helps the public by developing integrated management plans to control mountain pine beetle and noxious weeds. The program, which includes working with the Jefferson County Open Space Natural Resources section, coordinates with other governmental agencies to achieve regional pest control.

    This site includes information to help identify, control and prevent mountain pine beetle and noxious weed infestations. Our goal is to educate the public about weed and pest problems and offer solutions.

    Emerald Ash Borer


     Emerald Ash Borer Adult 



    Emerald Ash Borer (EAB) is a non-native invasive beetle that kills ash trees.  It was found in Colorado for the first time in Boulder in 2013.  It has not yet been found in Jefferson County.  Because this insect has spread so quickly in other states, property owners need to know what to look for and how to manage this new pest.

    Please visit the Colorado Department of Agriculture's View exit disclaimer policy page for links to third-party websites. website for more information.

    Please notify your local pest authority if you find this insect.


     Purge Your Spurge 

    Myrtle spurge

    Myrtle spurge, a List A noxious weed must be eliminated anytime it is found.  It had been planted as an ornamental until 2003 when it was added to the state's List A Eradication list.  It is spreading into natural areas where it takes over and crowds out any other plant.  Please refer to our fact sheet for more info. 



    For more information contact the Weed & Pest program at 303-271-5989 or email adoran@jeffco.us 

    Last Updated: 10-27-2014