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Montana Noxious Weed Information
| Below is the Montana Noxious weed list, updated February 2010. Some counties have additional weeds on their county noxious weed list. |
Priority
1A |
Not present in Montana. Management criteria will require prevention, education, and eradication if detected. |
Priority
1B |
Limited presence in Montana. Management criteria will require eradication or containment, where present, and prevention and education elsewhere. |
Priority
2A |
Common in isolated areas of Montana. Management criteria will require containment and suppression where common; and eradication, prevention, and education where less abundant. Management shall be prioritized by local weed districts. |
Priority
2B |
Abundant in Montana and widespread in many counties. Management criteria will require containment and suppression where abundant and widespread; and eradication, prevention and education where less abundant. Management shall be prioritized by local weed districts. |
Priority
3 |
NOT noxious weeds, but regulated plants that have the potential to have significant negative economic and ecological impacts. Intentional spread or sale of regulated plants other than as a contaminant in agricultural products is prohibited. Research, education, prevention, and control programs, where appropriate, are recommended to minimize the spread of these weeds. Control of Priority 3 weeds is not mandated. |
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