Invasive Species Resources | National Invasive Species Information Center

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National Invasive Species Information Center

U.S. Department of Agriculture

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.

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Economic Impact of Invasive Species: Direct Costs Estimates and Economic Impacts for Washington State (Jan 2017) (PDF | 4.94 MB)

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