Noxious Weed Identification
Montana has 36 state listed noxious weed species that collaboratively affect about 8.2 million acres of Big Sky Country. Both new and continued infestations of these non-native species not only reduce the productivity of cropland and rangeland, infestations of noxious weeds diminish the productivity and biological diversity of ecosystems by negatively impacting wildlife habitat and by affecting the vitality and survival of native species due to competition for space, nutrients and water.
- 2019 Montana State Noxious Weed List
- Montana County Listed Noxious Weeds
- Aquatic Invasive Species Program
To address noxious weeds, you first need to know how to identify the weeds we are dealing with in Montana. Weeds are most easily identified by their flower color, but sometimes you have to look at other features, including their leaf structure. Visit the Montana Weed Control Association website for information and photos to help you identify Montana's noxious weeds.
Noxious Weed Videos
The Ravalli County Weed District, Montana Department of Agriculture, and the Montana Weed Control Association sponsored a series of educational noxious weed awareness videos. All videos are available on the MDA YouTube Channel, or use the links below to view specific videos:
Noxious Weed Education
The Montana Noxious Weed Education Campaign aims outreach efforts toward educating Montana residents to become proactive in the prevention, eradication and containment of noxious weeds through ecologically based integrated weed management.
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