Although the national parks are home to many valuable resources and beautiful sites, they also host some of the harmful diseases and pests found in nature. Whether native or non-native species, pests can spread disease and affect park ecosystems and the plants and animals found within. They can also pose a risk to visitors, so when you’re visiting the national parks, be sure and check with a ranger about local risks. Discover how the National Park Service deals with diseases and pests.
Last updated: February 14, 2019