Give them an inch and they might take an acre! Join a Naturalist for a hike at Detweiler Park to learn about unwanted invasive species that are bullying our native diversity. Participants will learn how to identify these undesirables, the impacts they have on our native plant populations and how to stop their invasion. Please dress for the weather and wear sturdy hiking shoes! This program is part of the Dauphin County Park Rx series of programs sponsored by Highmark Blue Shield. Space is limited. Pre-registration required.