Noxious weeds are the greatest environmental threat facing Montana today. These invaders can devastate wildlife habitat and fisheries, they can adversely alter view sheds, and they cause great economic and ecological damage to the state.

The mission of the Montana Weed Control Association is to strengthen, support, and coordinate weed management efforts in the state of Montana in accordance with the Montana State Weed Plan. The Association has three primary goals:

Networking - To create and sustain channels that encourage collaboration, participation, and sharing of knowledge and expertise.
Education - To provide non-biased and balanced collection, sharing, and dissemination of knowledge to the membership and the public.
Research Assistance - To gather input from members to ascertain research priorities, to communicate priorities and needs to the research community, to assist in the funding process, and to relay research results back to the membership.

The Montana Weed Control Association has been in existence for over 50 years and was originally created to be an organization for the state's weed supervisors. Today, the organization represents a growing and diverse membership base across the state. The MWCA is a 501(c)3 organization and relies on grants,  membership dues, trainings, and an annual conference to maintain viability.