PO Box 364

Paonia, CO 81428



fax: 720-880-3051







Main Page


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.



Important Information




Join or renew now!

Memberships are based on a calendar year from January 1 - December 31


2014 Memberships

Pulling For Colorado

P4C Information

Map of events - Coming Soon


2014 P4C Grant Applications Due April 25th

Weeds 101 Workshops

Speaker Dr. George Beck, CSU


The Colorado Weed Management Association and Colorado State University Extension present a 1-day workshop on noxious and invasive weeds for those with limited experience. 



Topics Will Include

  • Characteristics and ecology of invasive weeds
  • Colorado’s noxious weed law
  • ID of A-list species
  • ID of local B-list species
  • Herbicides used for control
  • Sprayer calibration
  • Ecologically-based weed management using local examples
  • 8:30 a.m. to 4:30 p.m.
  • CEC’s pending
  • $40.00 registration cost
  • Online Registration - pay with a credit card or send a check
  • Reservations are required one week in advance!!!


May 15th (Thursday)
Montrose County Fairgrounds
1001 N 2nd St.   Montrose, CO
Lunch will be provided



May 20th (Tuesday)
Weld County
Southwest County Services Complex
4209 CR 24.5
Del Camino, CO
Lunch will be provided



May 22nd (Thursday)
Colorado Springs
Colorado Parks & Wildlife
4255 Sinton Road
Colorado Springs, CO
Lunch will be provided


weed book


CWMA Publications

Books and Brochures


Garden Smart Colorado

sulf cinque

Weed Tool

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




2014 January

2013 October

2013 June



NPDES Information


Weed Spotter

Since 2004, CWMA has worked to provide a way for our members to receive up-to-date information about new infestations of high priority and unknown noxious weeds. More Information