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Colorado's Top Invasive Species Concerns
Colorado's Top Invasive Species Concerns

​​​Invasive Species are non-native aquatic and terrestrial plants, animals and pathogens that have a harmful impact on natural resources and the human use of those resources.

​​Zebra Mussels

Aquatic Nuisance Species (ANS)​
Aquatic Nuisance Species​ ​​​​​​​​​​​​​are aquatic plants and animals that invade lakes, reservoirs, rivers and streams. Examples of ANS are the zebra mussel, quagga mussel, New Zealand mudsnail, Asian carp or Eurasian watermilfoil. ANS can also include fish pathogens and diseases, such as viral hemorrhagic septicemia (VHS) or whirling disease.  ​>> Learn more.​​

Weeds Noxious Weeds
Noxious weeds are plants that are not native to our area and cause environmental or economic harm. Most have come from Europe, Asia or South America either accidentally or as ornamentals that have escaped.​ >> Learn more.​
​​ Forest Pests
Forests pests such as beetles, fungi, and pathogens threaten millions of trees in the United States. Most of these pests originally arrived from foreign countries on commercial vessels carrying wooden pallets and crates containing the invasive pests.  ​ >> Learn more​.​​