invasive plant research

Invasive species are considered second only to habitat destruction in causing species extinctions. Ecosystems of the Rocky Mountain Region are threatened by many invasive plants, including Tamarix (tamarisk, saltcedar), Russian olive (Elaeagnus angustifolia), and cheatgrass (Bromus tectorum). We conduct research on the impacts of invasive species, their control, and restoration after removal. Our current emphasis is on invasion of riparian (riverbank) zones.

Invasive Weed Information

Rare weeds of Colorado Identification Project: Download or request a printed copy of our beautiful “Rare Weeds of Colorado” poster and learn about the “List A” species and how you can help prevent their spread.
Colorado State Extension Service Weed information: Information on the state’s most common weeds.
Colorado Department of Agriculture Weed list: Contains an updated list of Colorado weeds and state status.

Research

Through Dr. Anna Sher’s joint position with the University of Denver Department of Biology, graduate students are studying impacts of invasive species on native ecosystems.

Restoration

We conduct research on restoration approaches, including the use of mycorrhizas for native plant revegetation, and integrated pest management of invasive weeds. Past projects have included investigations of the use of fire to control cheatgrass (Bromus tectorum), and use of mechanical and chemical means to remove Tamarix spp. (tamarisk, saltcedar).

Currently, in collaboration with the Department of Interior and the EPA, we are producing best management policies manuals on methodology to control tamarisk and conduct revegetation after tamarisk removal. Contact our scientists if you are interested in this project, or would like to receive a copy of the manual when it is available.

Time to Evaluate Your Garden

Dames Rocket As we are continuing the summer-long process of weeding, it is a great time to look at what is growing on your property.

Are there weeds lurking in your garden? Some pretty plants that are flowering now like dames rocket are actually causing harm to wild areas as invasives. The state compiles a weed list that can be your guide.
Create habitats with your planting choices this year. By planting native flowers (such as our state flower, the blue columbine), you can help butterflies, bees and other native animals. For more information, visit the National Wildlife Federation's Certified Wildlife Habitat program Web site.
Consider using more compost and less chemical fertilizer, ladybugs instead of more pesticides. Our choices can make a real impact on our environment. The Colorado State Extension has a variety of resources to help you with your choices:

invasive plant research

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