The United States Department of Agriculture's Animal and Plant Health Inspection Service (APHIS) has analyzed the potential environmental effects of establishing an integrated management strategy to control cogongrass in Alabama, Georgia, Mississippi, and South Carolina. The draft environmental assessment is now available for comment. Cogongrass is an invasive exotic grass found on public and private property, along roadways, in forests, and on farmland. This federally regulated noxious weed grows rapidly, reducing forest productivity, harming wildlife habitat and ecosystems, and encroaching on pastures and hayfields. Because of cogongrass' impact on agriculture and forest industries, Congress has given APHIS funding to partner with Alabama, Georgia, Mississippi, and South Carolina to control the spread of this weed. APHIS is proposing is an integrated management strategy that uses preventive, cultural, mechanical, biological, and chemical methods to control cogongrass in key areas of its distribution. APHIS invites the public to review and comment on this environmental assessment by April 1, 2020.
APHIS Accepts Comments on an Environmental Assessment to Control Cogongrass in Alabama, Georgia, Mississippi, and South Carolina (Mar 4, 2020)
USDA. Animal and Plant Health Inspection Service.
USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Cogongrass is one of the world's worst invasive weeds, and is firmly established in several southeastern states. A new fact sheet, Cogongrass Biology and Management in the Southeastern U.S., is now available that outlines identification, biology, and management options for cogongrass. If you see it, report it!
First arrived accidentally in Louisiana in 1912, and it was introduced intentionally to Florida in the 1930s (Bryson and Carter 1993)
Forms dense stands that crowd out native species (Lippincott 1997)
University of Georgia. Center for Invasive Species and Ecosystem Health.Provides state, county, point and GIS data. Maps can be downloaded and shared.
USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.
USDA. APHIS. Plant Protection and Quarantine.
Includes species listed as a Federal Noxious Weed under the Plant Protection Act, which makes it illegal in the U.S. to import or transport between States without a permit.
The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Cogongrass.
USDA. APHIS. PPQ. Center for Plant Health Science and Technology; California Department of Food and Agriculture.
Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).
State and Local Government
Georgia Forestry Commission.
Cogongrass, Imperata cylindrica (L.), is considered the seventh worst weed in the world and listed as a federal noxious weed by USDA Animal and Plant Health Inspection Service - Plant Protection and Quarantine. Cogongrass infestations are being found primarily in south Georgia but is capable of growing throughout the state. Join the cogongrass eradication team in Georgia and be a part of protecting our state's forest and wildlife habitat. Report a potential cogongrass sighting online or call your local GFC Forester.
Mississippi Forestry Commission.
Florida Department of Agriculture and Consumer Services. Florida Forest Service.
Alabama Forestry Commission.
Mississippi State University. Extension.
Clemson University (South Carolina). Regulatory Services.
University of Florida. IFAS. Center for Aquatic and Invasive Plants.
Bryson, C.T. and R. Carter. 1993. Cogongrass, Imperata cylindrica, in the United States. Weed Technology 7:1005-1009.
Dozier, H., J.F. Gaffney, S.K. McDonald, E.R. Johnson, and D.G. Shilling. 1998. Cogongrass in the United States: history, ecology, impacts, and management. Weed Technology 737-743.
Evans, H.C. 1987. Fungal pathogens of some subtropical and tropical weeds and the possibilities for biological control. Biocontrol News and Information 8:7-30.
Evans, H.C. 1991. Biological control of tropical grassy weeds, pp. 52-72. In: F.W.G. Baker and P.J. Terry (Eds.), Tropical Grassy Weeds. Wallingford, U.K.: CAB International.
Holm, L.G., D.L. Plucknett, J.V. Pancho, and J.P. Herberger. 1977. The world’s worst weeds: Distribution and biology. Honolulu, Hawaii: University Press of Hawaii.
Integrated Taxonomic Information System. Imperata cylindrica. [Accessed Sep 10, 2014].
Lippincott, C.L. 1997. Ecological consequences of Imperata cylindrica(cogongrass) invasion in Florida sandhill. PhD dissertation, University of Florida.
Moorehead, D.J., C.T. Bargeron, and G.K. Douce. 2007. Cogongrass distribution and spread prevention (PDF | 213 KB). In: N.J. Loewenstein and J.H. Miller (Eds.), Proceedings of the Regional Cogongrass Conference: A Cogongrass Management Guide (pp. 24-27). U.S. Forest Service.
Tabor, P. 1949. Cogongrass, Imperata cylindrica (L.) Beauv., in the southeastern United States. Agronomy Journal 41:270.