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See also: Conditional Nonnative Species List

The organisms listed are legally classified as exotic, harmful, or potentially harmful. No person may possess or place them into water of this state except as authorized by the department. 

The Entomological Society of America (ESA) is accepting comments until June 10, 2022 on a proposed common name for Vespa mandarinia and two related species of Vespa hornets.  Although Vespa mandarinia has been detected in the Pacific Northwest, the other two hornets are not known to occur in the United States.  Currently, Vespa mandarinia is being called many different names in the popular press, but no ESA authorized common name has been established. See Common Names section for more information as it becomes available.

Following the detection of invasive aquatic mussel larvae in Nov 2016, the State of Montana's Mussel Response Team was formed to rapidly assess the extent and severity of the mussel incident impacting Montana's waterways. Aquatic invasive species (AIS), including diseases, are easily spread from one water body to the other. To protect Montana’s waters and native aquatic species, please follow the rules and guidelines... clean, drain, dry.

African swine fever is a deadly pig disease that spreads rapidly and affects domestic and wild swine. While not a threat to human health, the virus could devastate America’s swine, pork industry, and food supply. Whatever pigs mean to you—your livelihood or a pet—we’re all in it together. Protect our swine and keep the disease out of the United States.

Avian influenza, or "bird flu," is a respiratory disease of birds caused by influenza A viruses. These viruses can infect domestic poultry (such as chickens, turkeys, ducks, and geese) and are found naturally in wild birds (such as ducks, gulls, and shorebirds). Low pathogenic avian influenza (LPAI) occurs naturally in wild birds and can spread to domestic birds. In most cases, it causes few or no outward signs of infection. LPAI viruses are common in the United States and around the world. High pathogenic avian influenza (HPAI) is extremely infectious, often fatal to domestic poultry, and can spread rapidly from flock to flock. If HPAI is found in the United States, we must eradicate it to protect our country’s flocks and to keep trade flowing.

A big way invasive pests can move from one location to another is through unregulated internet sales. We are seeing more and more of these sales, and it’s a real concern. Why? With normal commercial or retail sales, we can use techniques like quarantines and fumigation to make sure that purchased items are pest-free or don’t enter pest-free areas. But many times, sales on the internet do not follow these techniques, opening up the chance for invasive pests to move freely to new areas. APHIS' Smuggling, Interdiction and Trade Compliance Office looks for these types of sale offers online and stops them.

Pesticide risk management must be based on sound science, consistent with the laws under which pesticides are regulated in the United States. EPA has been working aggressively to protect bees and other pollinators from pesticide exposure.

Native plants are the foundation of Ohio's ecosystems. Discover how TNC is supporting native plant communities and how you can help at home.

Stories of successes. Report highlights game changing advances in the prevention, eradication, and control of invasive species through investments in science and technology.

Citation: Holland, J.S., J.R. Kirkey, and J.K. Reaser. 2018. Protecting What Matters: Stories of Success. National Invasive Species Council (NISC) Secretariat. Department of the Interior, Washington, DC.

Anglers, crayfish trappers, and other outdoor recreationists are asked to help the Wyoming Game and Fish Department protect our outstanding fisheries by reporting any rusty crayfish found in the Laramie River watershed. Rusty crayfish (Orconectes rusticus) are native to the Ohio River Basin, but have invaded many other states and Canadian provinces. They were first discovered in Wyoming in 2006 after being illegally introduced into private ponds and then escaping into Wagonhound Creek, a tributary of the North Platte River. Despite the Game and Fish Department’s early eradication efforts, the species has recently been found in the Laramie River as a result of another illegal introduction.

Rusty crayfish are 3-5 inches long, with a grayish-green body and easily-identifiable reddish fingerprint-like spots on each side of the body just in front of the tail. If you find a rusty crayfish, or catch one in a trap, take a photo of it and either return it to the water or kill it. Then contact the Laramie Game and Fish Department at (307) 745-4046 or reportais@wyo.gov.

A draft integrated letter report and programmatic environmental assessment has been developed to determine the economic and environmental impacts of federal participation in state-managed watercraft inspection programs along the Upper Missouri River Basin in Montana, Wyoming, North Dakota, South Dakota and Nebraska. Public comments on the draft EA were accepted until March 2, 2021.

The existing watercraft inspection programs are managed collaboratively by the states of Montana, Wyoming, North Dakota, South Dakota and Nebraska, where watercraft transported along highways are inspected for the presence of aquatic invasive species and decontaminated when detected. If approved, federal participation in the program would be cost-shared (50 percent) with each of the states, and would employ a regional strategy to identify locations that would provide the greatest likelihood of preventing the spread of aquatic invasive species to reservoirs operated and maintained by the Corps in the Upper Missouri River Basin.

Yellowstone National Park seeks public comment on proposed measures to help stop the spread of aquatic invasive species (AIS) into park waters. The proposals include a 30-day mandatory dry time for some types of motorized boats and sailboats before entering park waters and the prohibition of watercraft previously fouled by mussels regardless of dry time.

See also: Proposal to Implement Certain Restrictions for Launch of Some Types of Motorized Boats to Reduce the Risk of Aquatic Invasive Species. The comment was open from March 7-April 5, 2024. 

To help combat the $1.3 billion threat invasive species pose to Washington's economy every year, the Washington Invasive Species Council is inviting the public to the frontlines of its work by detecting invasive species and reporting them on its newly improved WA Invasives app. The free app enables anyone to report a plant or animal by collecting photographs, geographic coordinates, and sighting information. Users recreating in the backcountry also can collect data offline, when cellular service isn't available. The app also acts as digital field guide.