Ecological Threats
Each natural community faces ecological threats that could change its defining features, leading to its decline.
Non-Native Invasive Plants
- garlic mustard (low plant)
- Japanese stiltgrass (low plant)
Diseases, Pests, and Other Threats
Learn more about some of the ecological threats to the natural communities of Harpers Ferry National Historical Park.
- Emerald ash borer - killing the ash trees at Maryland Heights
See Making a Difference to learn about some of the ways park staff are addressing these threats—and ways you can help, too.