PO Box 419

Hotchkiss, CO 81419



fax: 720-880-3051






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Mission Statement

The mission of CWMA is to provide education, regulatory direction, professional improvement, and environmental awareness to preserve and protect our natural resources from the degrading impacts of invasive species (terrestrial and aquatic vegetation) in Colorado and surrounding states.



Who We Are

CWMA members are dedicated to terrestrial and aquatic invasive species management. Our members include professional weed managers representing many government agencies, private and commercial applicators, non-governmental organizations and concerned citizens.



Current Interest

2018 Calendar Photo Contest

CWMA produces an annual calendar to educate Coloradans about
noxious weeds that threaten our landscapes. We are holding a photo contest. Winners will recieve $100 and will have their photo(s) featured in our 2018 calendar.

Submission deadline: April 30, 2017


More Info


Regional Spring Training School

May 18 (Thursday)
Montrose County Fairgrounds

Montrose, CO

May 24 (Wednesday)
Weld County Southwest Service Center

Longmont, CO


June 7 (Wednesday)
El Paso County

Colorado Springs, CO


More Info


Event Flyer

Healthy Landscapes

The Colorado for Healthy Landscapes Initiative supports sustainable management of Colorado’s most important resource.


Learn More



Wildflower Seed Pre-Order

Pre-orders for packages of 50 packets of wildflower seeds are now available



2017 Calendar



Join or renew now!

Memberships are on a calendar year from Jan 1 - Dec 31


2017 Memberships




Weed Tool

This new tool provides an easy interface to identify invasive weeds.



Weed Spotter

Report new locations of noxious weeds

More Information



Economic Impact Study

CSU, CPW and CWMA partnered to develop an Economic Impact Study of Invasive Weeds.


Economic Impact Study



Education Archive

NPDES Information





Weeds 101

Dr Beck's 2016 Weeds 101 workshop presentations



CWMA Publications

Books and Brochures