University of Arkansas. Cooperative Extension Service.

USDA. ARS. Down on the Farm.

Currently, most cogongrass is controlled with herbicides, which only serve as a temporary solution. The herbicides must be reapplied every 6-12 months. ARS scientists in the U.S. and overseas are investigating biological control of cogongrass by collecting and studying insects that feed on the grass where the weed originated. These insects will be screened over many years to determine if they will be safe, and only those that cause no harm to valued plants will be released.

Mississippi State University. Extension.

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.

Alabama Cooperative Extension System.

Mississippi Forestry Commission.

One of the most invasive weeds in the world is beginning to make its way into north Mississippi, announced the Mississippi Forestry Commission (MFC). "Cogongrass was introduced to Mississippi as a new forage crop, however, it is not palatable for livestock, not even goats will eat it," Bozeman said. "It also failed as an erosion control plant because it was too weedy. With no native competition or consumers, cogongrass spread rapidly throughout the Gulf South." There is widespread cogongrass infestation in south Mississippi, but the MFC is starting to see and get reports of the weed moving into the northern part of the state. If left unchecked, cogongrass could become a statewide problem.

Bozeman wants landowners in north Mississippi to be on the lookout for cogongrass on their property and the notify the MFC if they suspect the invasive weed has taken root. "The Mississippi Forestry Commission can offer assistance to landowners in north Mississippi who have cogongrass on their property," said Bozeman. "We can also come out and help landowners determine if what they are seeing is cogongrass or not." For more information and to fill out the program application, visit the Cogongrass Control Program. If you suspect you have cogongrass on your property, call your local MFC forester to come do a site visit.

University of Georgia. Center for Invasive Species and Ecosystem Health.

Provides comprehensive information on cogongrass in Georgia along with links to other southeastern state efforts on cogongrass. To date, Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina and Texas have on-going research, education and/or control programs that are supported by university, state and federal agency cooperators.

Alabama Department of Agriculture and Industries.

University of Georgia. Center for Invasive Species and Ecosystem Health.

Provides state, county, point and GIS data. Maps can be downloaded and shared.

University of Florida. Institute of Food and Agricultural Sciences Extension.

Electronic Data Information Source - publication resources

USDA. APHIS. PPQ. Center for Plant Health Science and Technology; California Department of Food and Agriculture.

Alabama Cooperative Extension System.

American Association for the Advancement of Science. Science.

Fire-friendly grasses have invaded new habitats around the world. Five species (cheatgrass, cogon grass, gamba grass, molasses grass, and buffelgrass) are considered among the most problematic grasses, threatening to transform entire ecosystems.

USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.

Mississippi Forestry Commission.

IUCN. Species Survival Commission. Invasive Species Specialist Group.

Google.

Smithsonian Institution. Smithsonian Marine Station at Fort Pierce.

The Arkansas Department of Agriculture is notifying the public that a new invasive grass species, Cogongrass, has been confirmed in Arkansas for the first time. For several years botanists and land managers have been on the lookout for Cogongrass (Imperata cylindrica) in southern Arkansas. This aggressive species, native to Southeast Asia, has spread rapidly across the Deep South over the past few decades. Cogongrass is considered one of the worst invasive species in the world, causing both economic and ecological damages that impact forestry, agriculture, rangeland, and natural ecosystems.

Any sightings of Cogongrass in Arkansas should be reported to Paul Shell, the Department's Plant Inspection and Quarantine Program Manager, at paul.shell@agriculture.arkansas.gov or 501-225-1598.

Florida Department of Agriculture and Consumer Services.