Invasive Species in Pennsylvania

Invasive species are those plants, animals and pathogens that are not native to an area and can cause harm to the environment, to the economy and to human health. While not all non-native species are invasive, some can really do damage to our public and private lands.  Invasive species are highly adaptable to different habitats, grow quickly or reproduce abundantly, are difficult to eradicate and can negatively impact our native species.

While there are many different invasive species in Pennsylvania, there is a wealth of information out there to help you manage them.  Click on these links to find photos, control and prevention options, and other resources to keep invasive species under control.

Invasive Plants in Pennsylvania

Read one of the many factsheets about the invasive trees, shrubs, vines, grasses and other plant species that can be found in Pennsylvania, or download the full list here.

Invasive Plant Management Tutorial

Find information to identify, prevent and control invasive plants.


Invasive Threats to Forest Health

Invasive insects and diseases are threatening the health of our forests. Find out what they look like and how to deal with them.

DCNR Invasive Species Management Plan

DCNR is working hard to prevent and control invasive species on both public and private lands.  Read about it in this newly updated plan.


is-zebra mussels

Other Online Resources

In Pennsylvania, the Game Commission regulates invasive birds and mammals, the Fish and Boat Commission and Sea Grant handle invasive aquatics, and the Governor's Invasive Species Council overseas all statewide invasive species efforts.

Bee Balm blossoms

AlterNATIVES to Invasives

Using native plants in the landscape can help avoid some of the problems caused by invasives.  The iConserve program can show you where to begin.