Removing Invasive Plants from the Great Meadow

Before the national park was established, Acadia’s wetlands have been dredged, ditched, or filled in, making them susceptible to invasive species, among which glossy buckthorn (Frangula alnus) has become a particular threat. The NPS led the efforts for finding, removing, and researching invasive species in Acadia. Using an integrated pest management approach, the team hand-cut buckthorn shrubs, applied herbicide, and hand-pulled seedlings. From 2016 to 2022, glossy buckthorn coverage decreased from 0.54 acres to 0.05 acres. While invasive species may never be completely eradicated, the goal is to restore native plant communities and preserve their benefits, including water filtration, soil formation, and wildlife habitat.