Invasive and Exotic Species in Maryland

Report an Invasive Species

Using Maryland's Invasive Species Tracker

Save Your Ash Tree from the Emerald Ash Borer

Illustration depicting No Ash Borer allowed

Learn about the Northern Snakehead

Invasive Species Information

AIS Management
Blue and Flathead Catfish
Chinese Mitten Crab
Didymo: Invasive Algae
Emerald Ash Borer
Forest Pests
Northern Snakehead
Purple Loosestrife
Rusty Crayfish
Survey of Aquatic Invasive Species in Maryland Lakes
Virile Crayfish
Water Chestnut
Wavyleaf Basketgrass
Zebra Mussels
Zebra Mussel Location Map

Zebra Mussels

Zebra mussels occur in the Chesapeake Bay watershed in Pennsylvania and New York and more recently in a small part of Maryland’s waters. Learn more...

Keep Maryland Waters Beautiful

This video provides tips to help stop the spread of aquatic invasive species. Spread the word, not aquatic hitchhikers.

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