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Provides selected Washington resources from agencies and organizations with an interest in the prevention, control, or eradication of invasive species.


  • Invasive Pest Trapping Season Resumes

    • May 17, 2023
    • Washington State Department of Agriculture.

    • The Washington State Department of Agriculture (WSDA) is beginning its annual search for pests that could threaten the state’s environment and agricultural industry. Staff will set thousands of traps statewide to monitor for the introduction or spread of more than 130 invasive pests and diseases, including spongy moth, Japanese beetle, apple maggot and northern giant hornet.

      WSDA is still asking residents to report all suspected hornet sightings. Northern giant hornet queens should be active now and could be spotted while they establish their nests. As the colony grows, worker hornets may become increasingly visible throughout the summer and into the fall. See Public hornet trapping instructions for more information.

  • Washington State University Extension Helps Train Volunteers to Find Invasive Crab

    • Apr 21, 2023
    • Washington State University. WSU Insider.

    • A new program will enable anyone who walks the shorelines of Puget Sound to identify one of Washington state’s most concerning invasive species: European green crab.

      In response to this shore crab’s booming population, Washington State University Extension and Washington Sea Grant outreach specialists are rolling out the Molt Search program in May.

  • Governor of Washington Issues Green Crab Infestation Proclamation

    • Jan 19, 2022
    • Office of the Governor (Washington).

    • Washington Governor Jay Inslee has issued an emergency order [PDF, 174 KB] to address the exponential increase in the European green crab population within the Lummi Nation’s Sea Pond and outer coast areas. The European green crab is a globally-damaging invasive species that, if they become permanently established, will particularly harm endangered species, impact resources that are part of the cultural identity of the tribes and native peoples, and affect small businesses.

  • Invasive Green Crabs Pose Threat to Washington's Shellfish Industry and Tribal Culture

    • Mar 3, 2022
    • DOI. United States Geological Survey.

    • European green crabs are one of the most widespread invasive marine species on the planet, originally reaching Washington in 1996. When green crab populations grow too large, they compete with other shellfish, disturb the sediment, and destroy the eelgrass that is an important habitat for Dungeness crab and salmon. The U.S. Geological Survey (USGS) is working to increase the effectiveness of Washington’s green crab early detection and rapid response program. Research conducted at the USGS' Western Fisheries Research Center aims to improve native shellfish habitat and limit the spread of European green crabs in coastal waters.

  • Live European Green Crabs Confiscated from Seafood Market; Species Remains Prohibited in Washington

    • Dec 29, 2022
    • Washington Department of Fish and Wildlife.

    • In early December Washington Department of Fish and Wildlife (WDFW) Police received information that a Seattle market was selling live “green crabs”. The Seattle seller had bought the live green crabs from a seller in Massachusetts with the intention of selling them for crab stock and soup. The crabs were destroyed by WDFW Police officers.

  • Montana, Washington Join Forces to Stop Feral Pigs

    • Dec 29, 2020
    • Montana Department of Natural Resources and Conservation. Montana Invasive Species Council.

    • The Montana and Washington invasive species councils have joined forces to stop wild pigs from crossing borders. The two councils issued a report with recommendations and best management practices aimed at helping federal, state, provincial and local landowners manage wild pigs in the western United States and Canada. "Wild pig populations are expanding in the western provinces of Canada and in the United States." said Stephanie Criswell, coordinator of the Montana Invasive Species Council. "We are at a unique point in time where we can work together to prevent Canadian wild pigs from spreading across borders into unaffected states like Montana."

      In early 2020, the two invasive species councils convened a working group of more than 40 federal, state and Canadian feral swine experts to discuss challenges and opportunities to prevent feral swine along interstate and international borders. Finalized this month, the report includes 22 recommendations that address five strategic areas of feral swine management. Recommendations include standardizing communications to the public, expanding monitoring networks by partnering with non-traditional organizations such as hunting groups, and formalizing notification protocols for reports that will be shared between state and provincial authorities along the international border. The complete report can be found at

  • Washington State Council Updates Statewide Strategy to Prevent Invasive Species

    • 2020
    • Washington Invasive Species Council.

    • The Washington Invasive Species Council approved an updated statewide strategy to prevent invading plants and animals from taking hold in the state’s forests, waters and farms.

      The strategy calls for a broad range of actions focusing on preventing new species from establishing here, educating the public and rapidly deploying when species are found to prevent their spread. The 5-year strategy (2020-2025) is available at Washington Invasive Species Council - Reports.

  • Japanese Beetle

    • Washington State Department of Agriculture.

    • Washington State Department of Agriculture (WSDA) detected two Japanese beetles near Grandview and one near Sunnyside in 2021. Additionally, a resident reported numerous Japanese beetles devouring her roses in Grandview that summer.

      Japanese beetles would pose a serious threat to farms, gardens, and the environment if they were to become established in Washington State. Please report any suspected sightings of Japanese beetle at or 1-800-443-6684. See WSDA's Interactive Japanese Beetle Response Map.

  • Squeal on Pigs! Call 888-268-9219

    • Washington State Recreation and Conservation Office. Washington Invasive Species Council.

    • The states of Oregon, Washington, and Idaho are urging people to report any feral pig sighting by calling a toll-free, public hotline, the Swine Line: 1-888-268-9219. The states use hotline information to quickly respond to a feral swine detection, helping to eradicate and curb the spread of the invasive species.
      See also: Feral Swine Fact Sheet [PDF, 208 KB] and Squeal on Pigs! Poster [PDF, 20.6 MB]

  • Washington Pest Watch

    • Washington State Recreation and Conservation Office. Washington Invasive Species Council.

    • Washington Pest Watch is a citizen science initiative led by agencies and universities at the front line in protecting our state’s natural resources and economy from invasive species. You don't have to be an entomologist or biologist to participate in the network; the majority of network members are everyday people who keep their eyes peeled for the signs and symptoms of high priority invasive species and report them to agencies to aid in detections and rapid response. Just keep an eye out in your yard, your neighborhood, or when enjoying outdoor activities. Be aware and report what you spot—it’s simple and easy.

  • Washington State Noxious Weed Control Board - What's New

    • Washington State Noxious Weed Control Board.

    • The Washington State noxious weed list is updated every year, and all Washington residents can submit proposals to add or remove species, change the class of a listed noxious weed, or to change the designated area in which control is required for a Class B noxious weed. Anyone, including citizens, tribes, organizations, government agencies, and county noxious weed control boards may participate in the listing process by submitting a proposal or by submitting testimony about proposed changes to the noxious weed list. In fact, Washington's open, inclusive listing process is lauded by other states for its encouragement of public participation. Learn more about the listing process here.

State Specific Threats

Selected Resources

The section below contains highly relevant resources for this location, organized by source.

Council or Task Force
Federal Government
State and Local Government
  • Washington Integrated Pest Management

    • Washington State University Extension.

    • The Washington State Integrated Pest Management (IPM) Extension Implementation Program is a coordinated outreach effort by a team of Washington State University Extension Specialists to bring IPM knowledge to agricultural and urban pest managers across the state of Washington. Our ultimate goal is to increase adoption of IPM practices, toward a pest management paradigm that reduces human health risks, minimizes adverse environmental impacts, and maximizes economic returns and sustainability.