MWCA
Currently, Montana has approximately 7.6 million precious acres infested with state-listed noxious weeds, and several new and potentially devastating invaders encroaching our borders. 
(Photo by Gary Adams)
MWCA
Noxious weeds can increase soil erosion which can adversely affect water quality for fish, and thick stands of noxious weeds such as salt cedar or Russian olive, can make access to rivers and streams difficult.
(Photo by Josh Wilson)
MWCA
Noxious weeds can invade pastures and range land reducing viability. Weed seeds can be transported in the fur of livestock and in manure. Even more importantly, many of Montana state-listed weeds are toxic to animals.
(Photo by Kellieann Morris)
MWCA
Noxious weeds can negatively affect the value of your property. Be a responsible landowner and follow the law by managing and preventing noxious weeds on your property.
(Photo by Kellieann Morris)
MWCA
Noxious weeds adversely affect the habitat where game and waterfowl reside. While hunting, your clothing, vehicles and dogs can transport weed seeds impacting future hunting opportunities.

ABOUT MWCA

Help us Keep Montana Beautiful

The Montana Weed Control Association (MWCA) is a member-supported non-profit organization.

MWCA 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.

Our goal is to facilitate long-term, ecologically based, integrated noxious weed management programs throughout Montana.

Learn more and help us keep Montana naturally beautiful…

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Upcoming Events

Upcoming Events

Please note we are undergoing a database/store change. If you wish to order materials or join/renew memberships, please contact Becky for help.

Jul 30

There is some green still left in Montana! Thanks for the reminder Jack Eddie!

Jul 14

Jack Eddie, the ultimate weed warrior, has been hard at it painting weeds this summer!

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Recent News

Montana State Employees Charitable Giving Campaign can help MWCA

The time for giving is around the corner when it comes to the Montana State Employee Charitable Giving Campaign (SECGC). The State Employee Charitable Giving Campaign is the annual opportunity for state employees (and some county employees) to donate to the organization (s) of their choice via payroll deduction, cash, check, credit, or debit card. […]

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Recreationists and public lands

To communicate about the huge threat of invasive annual grasses and catastrophic wildfire facing rangelands, the Intermountain West Joint Venture and Bureau of Land Management teamed up to create a video for those that recreate in the sagebrush sea. Called “Playing with Fire,” this short film seeks to encourage and empower everyone to recreate responsibly in […]

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