Louisville Water Company.
Nebraska Game and Parks Commission.
Vermont Agency of Agriculture, Food, and Markets.
Vermont Agency of Natural Resources. Department of Forests, Parks, and Recreation.
See also: Invasive Plants for more resources
Kentucky Exotic Pest Plant Council.
University of Kentucky. College of Agriculture. Division of Regulatory Services.
Missouri Department of Agriculture.
Michigan Department of Agriculture and Rural Development.
Kentucky Department of Fish and Wildlife Resources.
University of Nebraska - Lincoln. Nebraska Invasive Species Program.
Northwest Michigan Invasive Species Network.