Resource Search 1 | National Invasive Species Information Center

Massachusetts Department of Agricultural Resources.
The Massachusetts Cooperative Agricultural Pest Survey (CAPS) program conducts science-based state and national surveys targeting exotic plant pests, diseases, and weeds identified as threats to U.S. agriculture and/or the environment.
See also: Massachusetts Prohibited Plant List and Massachusetts Department of Agricultural Resource (MDAR)'s Invasive Pest Dashboard

Michigan.gov. Michigan Invasive Species Program.
Invasive species on the watch list have been identified as posing an immediate or potential threat to Michigan's economy, environment or human health. These species either have never been confirmed in the wild in Michigan or have a limited known distribution. If you think you have found any of these species in Michigan, please report the occurrence via the methods given by clicking on an individual species name. View as printable version, see Michigan's Invasive Species Watch List [PDF, 210 KB].

Michigan.gov. Michigan Invasive Species Program.
Some invasive species are legally designated by the State of Michigan as either "prohibited" or "restricted." If a species is prohibited or restricted, it is unlawful to possess, introduce, import, sell or offer that species for sale as a live organism, except under certain circumstances.

Minnesota Department of Agriculture.
This is the official Minnesota noxious weed list. All species on the Minnesota noxious weed list include all hybrids, cultivars, and varieties unless specifically exempted.
See also: Minnesota Noxious Weed Law

University of Minnesota. Minnesota Invasive Terrestrial Plants and Pests Center.
To determine which pests posed immediate threats, MITPPC undertook an expansive evaluation process. It convened 15 expert panelists, who ultimately identified 124 significant invasive species threatening our state. This panel also identified 17 criteria that could be used to rate species in an objective, computerized ranking system. Criteria included factors like environmental and economic impact, ability to establish and spread and proximity to the state. Rankings are updated regularly, no later than every other year or as new threats emerge on a more urgent basis. The full whitepaper, Minnesota's Top Terrestrial Invasive Plants and Pests for Research: An Expanded Prioritization [Jan 2020; PDF, 3.64 MB], outlines all prioritization methods and results.