Noxious Weed Information

salt cedars are present along the Rio Grande and other parts of New Mexico

Invasive plant species have been cited as the second-largest threat to endangered native plant species.  Most noxious plant species in New Mexico are found on rangelands and wild lands.  These invasions result in decreased forage availability for livestock and wildlife.

The Noxious Weeds Management Act directs NMDA to develop a noxious weed list for the state, identify methods of control, and educate the public about noxious weeds.  NMDA coordinates weed management among local, state, and federal land managers, as well as private landowners.

Troublesome Weeds of New Mexico

New Mexico Non-Native Phreatophyte/Watershed Management Plan

Noxious Weed Memo and List (updated June 2020)

Noxious Weed Control Act

Noxious Weed Act of 1963

Noxious Weed Management Act

USDA’s Plant-Related Definitions


New Mexico’s Cooperative Weed Management Areas

Cooperative Weed Management Areas (CWMAs) are partnerships of government agencies, tribes, various groups, and individuals that manage noxious weeds and/or invasive plants.  Many CWMAs provide technical assistance, equipment, and educational opportunities related to noxious weed identification and management.  Contact NMDA’s Jim Wanstall ( to learn how you can participate in the management of noxious weeds and invasive plants in New Mexico.

Cooperative Weed Management Areas list with contact information (updated March 2019)

CWMA Fact Sheet

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