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…

Featured Video

The Columbia River Basin Flowering Rush Management Plan is complete. Peter Rice of UM and Virgil Dupuis of Montana are prominent features in this newest video discussing, among other things, flowering rush in Flathead Lake. 

Upcoming Events

Upcoming Events

2020 MWCA Annual Conference

The Association’s annual conference will be held at the Great Falls Heritage Inn on January 14 – 16, 2020. A draft agenda is available for review (below) and registration is open. 

Final 2020 Annual Conference Agenda
2020 AC Registration Form
Online registration Form


The Natural Heritage Annual Partners Meeting in Helena today. There are well over 50 in attendance to discuss invasive species and mapping & monitoring. ...

6 0

Michele Puiggari presents an interactive and informative HR presentation this morning in Lewistown! #greatdoorprizeshere ...

5 0


Recent News

How many Montanans are aware of noxious weeds?

The final report for the noxious weeds survey that was conducted by the Montana Noxious Weed Education Campaign (MNWEC), with the assistance of the HELPS Lab at MSU this past spring, is available for review. Here are some highlights: *Montanans generally have an interest in the topic of noxious weeds, though interest is somewhat less […]

Read More

MWCA SW Area Council holds annual gun raffle

While the MWCA Gun Raffle has sold all tickets and is undergoing monthly drawings, the SW Area Council folks are selling tickets for their gun raffle. The gun will be drawn for in January at the annual conference. For more information, please see the flyer below: Please contact Becky Kington (406-684-5590 or becky@mtweed.org) or Amber […]

Read More
Read All