Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.

Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.

Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.

Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.

Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.

Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.

Oregon Sea Grant.

See also: Species Guides for more resources

Minnesota Department of Natural Resources.

Maryland Sea Grant.

See also: Six Species of Concern for more fact sheets

Maryland Sea Grant.

See also: Six Species of Concern for more fact sheets

Maryland Sea Grant.

See also: Six Species of Concern for more fact sheets

Maryland Department of Natural Resources.

Pennsylvania State University. Cooperative Extension.

Pennsylvania State University. Cooperative Extension.

Agricultural & Applied Economics Association. Choices Magazine.

Aquatic invasive species threaten U.S. freshwater bodies throughout the country. One of the most prevalent and prevailing of these is hydrilla (Hydrilla verticillate), which spans from Florida all the way up to Maine, and as far west as California. The state of Florida alone spent $125 million from 2008 – 2015 to manage aquatic invasive species, $66 million of which went toward managing hydrilla. The Florida Fish and Wildlife Conservation Commission (FWC) is estimated to spend $15 million annually on managing hydrilla. This submerged weed is primarily managed through cost effective, safe aquatic herbicides and more costly mechanical harvesting. Due to the prevalence of hydrilla, understanding stakeholder perceptions regarding its management is critical to its successful control. 

This infographic displays Florida’s stakeholder perceptions around aquatic herbicide and mechanical harvesting usage, which can be utilized as a model for other states as well. Data analysis of 3,000 survey responses concluded that a majority of stakeholders are concerned about both the use of aquatic herbicides and mechanical harvesting.

USDA. ARS. Tellus.

Giant reed, Arundo donax, is a large, fast-growing invasive grass that has invaded at least 100,000 acres of "riparian" habitat in the southwestern and southeastern U.S. and is present as far north as Ohio and Washington State. Watch this video to learn how ARS researchers are using biocontrol (insects) to reduce the presence of this invasive plant.

Orange County Coastkeeper (California).

DOC. NOAA. National Marine Fisheries Service. West Coast Region.

University of California - Riverside. Center for Invasive Species Research.

Washington State Noxious Weed Control Board.