National Invasive Species Information Center
U.S. Department of Agriculture

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Provides access to all site resources, with the option to search by species common and scientific names. Resources can be filtered by Subject, Resource Type, Location, or Source. Search Help

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  • Washington State Noxious Weed Control Board

    • Washington State Noxious Weed Control Board.

  • Washington State Noxious Weed Control Board - Weed Search

    • Washington State Noxious Weed Control Board.

    • Provides help in identifying an unknown weed or plant. The database includes over 140 noxious weeds that are known to Washington State.

  • 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.

  • Washington State Noxious Weed List

    • Washington State Noxious Weed Control Board.

    • The Washington State Noxious Weed Control Board is tasked with maintaining and updating the official list of noxious weeds that landowners may be required to control.

  • 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.

  • Watch for Garlic Mustard Aphids

    • May 2022

    • Indiana Native Plant Society.

    • A European aphid that is only known to eat invasive garlic mustard has recently been found in the Midwest. If you see garlic mustard with curled leaves or aphids, help researchers studying this insect by sending in a report. Because the aphids may help control invasive garlic mustard plants, they are working with citizen scientists to map their distribution.

  • Water Chestnut

    • Wisconsin Department of Natural Resources.

  • Water Chestnut: An Aquatic Invasive Plant

    • Google. YouTube; Bucks County Conservation District (Pennsylvania).

  • Water Lettuce

    • Wisconsin Department of Natural Resources.

  • Water Lettuce - History and Ecology in North America [PDF, 5.89 MB]

    • 2022

    • North American Invasive Species Management Association.

    • See also: Biocontrol Factsheets for more information on biocontrol agents

  • Water Monitoring and Reporting - Invasive Aquatic Species Program

    • Maine Department of Environmental Protection.

  • Water Permits and Forms - Vessel Discharge

    • Minnesota Pollution Control Agency.

  • Water Quality - Invasive Species

    • Utah State University Extension.

  • Water Science School - Environmental DNA (eDNA)

    • DOI. United States Geological Survey.

  • Water Spinach, Swamp Morning-Glory

    • Wisconsin Department of Natural Resources.

  • Water Supply Planning - Aquatic Weed Control Program

    • North Carolina Department of Environmental Quality. Water Resources.

  • Watercraft

    • Pacific States Marine Fisheries Commission. Western Aquatic Invasive Species Resource Center.

    • Provides watercraft inspection and decontamination state information in the western states and Canadian provinces to prevent the spread of aquatic invasive species.

      In December 2021, the Pacific States Marine Fisheries Commission (PSMFC) initiated a program to prevent delays during the transport of watercraft destined in the Pacific Northwest. 
      See related resource: Call Before You Haul

      See also: Key Documents (includes Quagga and Zebra Mussels, Watercraft and Inspection Decontamination, Coastal, eDNA, Education and Outreach, Wildland Fire Operations and Prevention, and Seaplanes)

  • Watercraft Inspection and Decontamination Committee

    • Western Regional Panel on Aquatic Nuisance Species.

    • The Watercraft Inspection and Decontamination Committee (also known as the Decon Think Tank) is focused on refining, improving, troubleshooting and sharing the best possible techniques related to watercraft inspection and decontamination programs.

  • Watercraft Inspection Contacts

    • Pacific States Marine Fisheries Commission. Western Aquatic Invasive Species Resource Center.

  • Watercraft Inspection Information

    • Wyoming Game and Fish Department.

    • Please check this information before you transport your watercraft into Wyoming as this information will be updated regularly. This site includes detailed information and a map of inspection facilities including locations, dates of operation, and hours of operation. Any watercraft transported into Wyoming from March 1 through November 30 must undergo a mandatory inspection by an authorized inspector prior to launching in any water of the state. 
      See also: AIS Inspection Locations.