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Invasive Species Resources

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Colorado Parks and Wildlife.
On Tuesday, April 24, Gov. John Hickenlooper signed the Mussel-Free Colorado Act into law in a short ceremony at the Colorado State Capitol Building in Denver. The new law provides a stable funding source of $2.4 million for Colorado Parks and Wildlife's Aquatic Nuisance Species Program for 2019 and beyond.
Governor's Invasive Species Council of Pennsylvania.
Washington Sea Grant.

Pennsylvania Department of Conservation and Natural Resources.

Virginia Department of Agriculture and Consumer Services. Plant and Pest Services.

Pennsylvania Department of Conservation and Natural Resources.

University of Idaho.
Lincoln County Noxious Weed Control Board (Washington).
See also: Weed I.D. and Options for Control for more species
Tip of the Mitt Watershed Council (Michigan).
Michigan Department of Agriculture and Rural Development.

Idaho State Department of Agriculture. Invasive Species/Noxious Weeds Program.

Idaho Weed Awareness Campaign.

Idaho State Department of Agriculture.

The primary purpose of the Idaho State Department of Agriculture's (ISDA's) noxious weed cost share grant program is to accelerate the attack on invasive weeds by supplementing local funds and resources, not replacing them. Cost sharing is also intended to provide additional incentives for local landowners, officials, and citizens to work collaboratively to develop a more comprehensive and effective noxious weed management program.

University of Idaho Extension.
This pocket guide has color photographs of all the weeds on Idaho's official noxious weeds list. Inside find maps showing each weed's distribution by county, leaf shape illustrations to aid in identification, and features to help distinguish the weeds from similar-looking plants.
Colorado State University Extension.
Colorado State University Extension.

Pennsylvania State University. Cooperative Extension.

University of Idaho. Extension.

Washington State University Extension.

Thurston County Public Health and Social Services (Washington). Environmental Health.

See also: IPM for Homeowners & Land Managers for more species