There are no selective herbicide options for controlling cogongrass. These factors can spell trouble for people and structures near large infestations. The rhizomes of cogongrass are responsible for its survival and short-distance spread. Burning, deep plowing or disking, cultivation, cover crops, and herbicides have been used with varying degrees of effectiveness. Do not apply imazapyr herbicides within two times the dripline of any desirable vegetation. Official websites use .gov University Press of Hawaii, Honolulu, HI. As a result, it is a low-risk and low-cost investment in biofuel production. It is considered to be an invasive species in 73 countries and one of the "Top 10 Worst Weeds in the World.". Cogongrass is VERY difficult to control. Applications of Arsenal, Imazapyr, Polaris, or Habitat (2 pounds imazapyr per gallon formulation) at 48 ounces per acre can be used in certain areas and provide excellent control up to 1 year after application. Although it does not tolerate cool temperatures, it is found on almost every continent. Could the answer lie in the plants genetic heritage? : Conf. Do not attempt any prescribed burns in areas with cogongrass before consulting with Forestry Commission personnel. Tilling further depletes the rhizome reserve through desiccation and increases the number of shoots per given area. Start your cogongrass management by burning or mowing the cogongrass to remove excess thatch and older leaves. In addition, cogon grass ability to spread and replaced desirable vegetation outweighed any soil erosion considerations [6]. Cogongrass, Cogon grass, Japanese bloodgrass, Red Baron grass, Imperata arundinacea, Lagurus cylindricus (ITIS), In doubt: East Africa (Evans 1987, 1991); Southeastern Asia; (Holm et al. ARS. Breaking the rhizomes helps to dry them out and deplete stored energy. Do not burn without a follow-up herbicide treatment. During the 1930s and 1940s, the plant was introduced into Florida as a potential forage crop and for soil stabilization purposes. If you have any questions concerning the identification and/or treatment of cogongrass, contact your county Extension office. Florida Fish and Wildlife Conservation Commission. If you see cogongrass, contact your local Forestry Commission Office or your County Extension Office as soon as possible. Cogongrass (Imperata cylindrica), an invasive grass from Asia, is considered "the seventh worst weed in the world". Distribution Biology. All rights reserved. Cogongrass (Imperata cylindrica) is an invasive, non-native grass that occurs in the Southeast region of the United States. Legal | Ethics Line | Policy about commercial endorsements | DAFVM | USDA | eXtension | Legislative Update: Miss. Ser. Cogongrass produces upright, smooth stems 647 inches tall that form loose or densely compacted stands. Glyphosate has no soil residual activity. After achieving good control of the cogongrass, you must introduce desirable vegetation as quickly as possible to prevent cogongrass from re-infesting the area. The rhizome's specialized anatomy allows for water conservation, and it can penetrate up to four feet into the soil, although most rhizomes remain in the top six inches. Keep spray and spray drift off any desirable plants. 1993. Cross-pollination is necessary for seed production. bGlypro and Accord are registered trademarks of Dow Agrosciences, 9330 Zionsville Rd., Indianapolis, IN 46268.
Long, yellow-green leaves with light, off-center midveins arise from near the base of the plant, with a short, usually hidden stem. Copyright 2018 by Mississippi State University. The seeds--which are extremely small and attached to a plume of long hairs--can be carried long distances by wind and animals. Cogongrass fires are hotter, faster and higher than native grass fires. Couch grass is used for constipation, cough, high blood pressure, kidney stones, and. 2. & R. Carter. It thrives in regular garden soil in full sun or semi-shade. Even at high rates and using tank-mix combinations, cogongrass often regenerates within a year following a single application of either product. 1984. Florida Department of Agriculture & Consumer Services, Division of Plant Industry, Botany Circular No. University of Florida. Flowers typically occur at the top of the stem and are easily identified by silvery or whitish, silky hairs attached to the seed that create the appearance of a feathery plume (Figure 3). Acreages with extensive cogongrass infestations are economically and ecologically degraded. Medicinal use of Cogongrass: They are decocted and used to treat Cogongrass in Alabama after sixty years. Fever - Paragis can bring down the high fever experienced. a rhizomatous grass native to the Indomalayan and. Couch grass is a grass that is an invasive weed. The flowers are used in the treatment of haemorrhages, wounds etc. Gaffney, S.K. USDA. It has been shown that an integrated approach that combines burning, tillage (mechanical disturbance), and chemical applications provide the best solution for cogongrass management. Cogongrass, Imperata cylindricl (L.) Beauv. Extension Service of Mississippi State University, cooperating with U.S. Department of Agriculture. Pathogens. Forest Health Program. This site uses cookies. Final Report, Hernando County Public Works. Lippincott, C.L. For selective treatment of cogongrass in unimproved bahiagrass and bermudagrass turf, apply Arsenal at a rate of 8 fluid ounces per acre. Anatomy and reproduction in Imperata cylindrica. AFC program staff will review the Cogongrass Mitigation Program applications, which will be accepted or rejected based on the above-listed eligibility requirements. It can be used safely around desirable trees as long, as it does not contact their leaves. This article was most recently revised and updated by, https://www.britannica.com/plant/cogon-grass. Senesced leaves appear light orange-brown in color. aRoundup is a registered trademark of Monsanto Co., 800 N. Lindbergh Blvd., St. Louis, MO 63167.
Cultivation & Herbicides. A perennial grass, it grows on every continent except Antarctica and has earned a reputation as one of the worst weeds on Earth. USDA, NRCS. Smithsonian Marine Station at Fort Pierce. Cogongrass in Mississippi. 1997. 11 HEALTH BENEFITS OF SPEAR GRASS (KOGON) Gen info Speargrass is one of the most dominant and noxious weeds in agricultural and non-agricultural fields. Cogongrass grows in loose-to-compact bunches. As with all pesticides, proper handling and usage is of utmost importance andalways read and follow label directions. Rocky Mountain Research Station. The effects of temperature, time, packing density and oil concentration on oil absorption efficiency were investigated and optimised utilising one-factor-at-a-time (OFAT) and response surface methodology (RSM) approaches. Cogongrass is used as a soil binder (to prevent soil erosion), animal feed, and herbal medicine. Bewick, D. Grodon, D. Hall, & R. Smith. Imperial Agriculture Bureau. 66 p. Bryson, C.T. If you burn your fields during the summer, apply herbicides in the late summer or early fall--approximately one month prior to the average killing frost, depending on area. Landowner agrees not to apply for additional federal cost-share or incentive programs for the control of cogongrass for the same acreage while participating in this program. In the United States, cogongrass grows as far north as South Carolina and as far west as Texas. Cogongrass is regulated as a federal noxious weed. Johnson, J.F. Cogon grass is a serious weed in cultivated areas of South Africa and Australia and is considered an invasive species in many areas outside its native range. A 4% solution of 41% active ingredient material (5 1/3 fluid ounces per gallon of water) sprayed on the green leaves and allowed to dry for 2 to 3 hours will kill the top growth of cogongrass. Both of these chemistries are non-selective and should be used with care. Unfortunately, this weed continues to spread. Chemically site prepare with Arsenal AC (2 pints per acre) or Chopper (4 pints per acre) plus glyphosate at 4 pounds active ingredient per acre in the fall prior to planting in late winter (at least 3 months after application). Cogongrass spreads by both seed and root fragmentation (rhizomes). The graders inadvertently break rhizomes as they go along and the fragments are planted in the re-deposited soil. The Cogongrass Mitigation Program is funded by the USDA Animal and Plant Health Inspection Service (APHIS), Plant Protection and Quarantine (PPQ) and administered by the AFC to assist landowners affected by this noxious weed. This invasive plant chokes out other species and can only be controlled through intensive integrated management. Pucknett, J.B. Pancho, & J.P. Herberger. Young leaves appear light green, while older leaves turn orange-brown. APHIS. A few monocultures have become established on hundreds of acres of reclaimed phosphate mining areas in central Florida. In these areas, it was found that only very young shoots--which lack the sharp points and razor-like leaf margins--should be grazed or cut for hay. 2008-2012 | Contact Us | About This Site | Privacy | SSN Privacy, Aggressive weed becoming a menace worse than kudzu--IFAS News, July 5, 2008, Control of Non-native Plants in Natural Areas of Florida, Florida Department of Agriculture and Consumer Services (FDACS), Florida Department of Environmental Protection (DEP), Help Protect Florida's Natural Areas from Non-Native Invasive Plants, IFAS Assessment of the Status of Non-native Plants in Florida's Natural Areas, National Invasive Species Information Center--USDA. Leaves of cogongrass display a midrib that is off-set (closer to one leaf margin than the other). For more information about effective herbicides, contact your county Extension office. Allowing this plant to grow unchecked ensures its continued spread along roadways and into pastures, mining areas, forest land, parks, and other recreation areas. Cogongrass is a perennial grass that varies greatly in appearance. Some cultivars are grown as ornamentals, and . Plucknett, J.V. The Carabao grass is _____in number compared to Bermuda grass and Cogon grass. Even though many seem acquiescent to the spread of kudzu, privets, or honeysuckle, the takeover by cogongrass drives well deserved fears and dire predictions by land users, owners, and conservationists alike. The rhizome-root part serves. 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. In areas with killing frosts, the leaves will turn light brown during winter months and present a substantial fire hazard. However, cogongrass was found to be of little economic benefit as forage and a potentially serious pest. Our editors will review what youve submitted and determine whether to revise the article. Regulatory Services. After eligible sites are evaluated and ranked by AFC personnel, they will be sprayed on a first-come, first-serve basis. It has been so profusely introduced into other countries that cogongrass currently exists on every continent in the world except for Antarctica. 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. Dozier, H., J.F. Cogon grass, Imperata cylindrica (L.) Ruschel, is. Figure 3. We found there is no anemia occur in diabetic mice. These include use for thatch, forage, erosion control, paper making, and bedding material for livestock. Publishing. However, although tillage and herbicides will provide some control and suppression of cogongrass, long-term eradication is seldom achieved. Don't Edit RIS. The ligule is an inconspicuous membrane. Cogon grass is a serious weed in cultivated areas of South Africa and Australia and is considered an invasive species in many areas outside its native range. Roundup Ultra, Roundup Pro, or other brands of glyphosate (41% active ingredient formulations) at 5 quarts per acre or as a 1.5% solution will suppress cogongrass. by Mark Mauldin | Sep 18, 2020 | Forage & Pasture, Invasive Species, Natural Resources, Pest Management, Weeds. Smithsonian Institution. Institute of Pacific Islands Forestry. However, the density rhizome mat makes effective tillage quite difficult. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Visit www.alcogongrass.com to learn how to spot cogongrass and report it when it blooms again in the spring. The goals of this program are to reduce the number of infested acres, eliminate cogongrass's damaging effects on existing . Ornamental introductions continue to be made in the U.S. with the numerous "red cultivars" offered by nurseries. The researchers further found that those two original lineages of cogongrass have managed to spread throughout the Southeast, and may have benefitted from exchanges of genetic material in the two statesAlabama and Mississippiwhere they predominate. Today, it reduces forest productivity, destroys wildlife habitat (including those for gopher tortoises, Eastern Indigo snakes, and . AND DISCONTINUED INSULATION Certain forms of insulation used in the past are now no longer used because of recognized health risks. In pastures, apply 8 to 48 ounces of Arsenal per acre. The acreage, stand, or site of the cogongrass infestation cannot be currently enrolled in the Conservation Reserve Program (CRP), Environmental Quality Incentives Program (EQIP), or any other federal cost-share program. Shilling, D.G., E.R.R.L. Include an 80/20 NIS (Non-ionic surfactant) at 0.25% to 0.5% v/v (10-20 mL of NIS per gallon of spray solution). GARY B. JACKSON, Director. Mississippi State University is an equal opportunity institution. See also Health Benefits of Corn Silk USDA. Sellers. Sulfometuron (Oust XPd) at 2 ounces per acre has been shown to increase cogongrass control when applied with imazapyr, but should not be applied as a stand-alone treatment. Recognizing the presence of cogongrass is necessary before beginning any land management activities. The PLANTS Database (http://plants.usda.gov, 5 September 2007). Perform additional tillage with a disk harrow or other appropriate implement every 6 to 8 weeks. ), Tropical Grassy Weeds. With agriculture and natural ecosystems at risk, ADAI is calling on Alabamians to recognize this threat and share the information. Data from the genetics study supported previous observations that two major cogongrass lineages were introduced from differing parts of the grass native range in Southeast Asia. 1944. Shilling, C.A.N. Cogon grass infestations can reduce pine survival and growth, and in fire situations, may result in complete mortality of overstory trees due to flammable oils in the grass blades raising the intensity and severity of prescribed burns. If you need assistance accessing any of our content, please email the webteamor call 662-325-2262. Monitor the site throughout the growing season; spot treat any recurring infestations with appropriate herbicides. They write new content and verify and edit content received from contributors. Cogongrass in the United States: history, ecology, impacts, and management. What are the benefits of cogon grass for rabbits? BibTeX Citation Neni Anggraeni et al 2019 J. Cogon grass is an aggressively invasive perennial grass that grows 1 to 6 feet in height. Several thousand acres are infested with cogongrass in the southeastern United States; more than 1.2 billion acres are infested worldwide. The leaves originate directly from ground level and range from one to four feet in length. The reason behind why it is effective because it contains anti-diabetic. Acceptance of a property, stand, or area for control treatment will be based on several factors, including but not limited to, available resources to meet current treatment agreements, cogongrass verification, infestation location, and legal ownership. The goals of this program are to reduce the number of infested acres, eliminate its damaging effects on existing ecosystems, and improve the productivity of impacted sites. Proceedings of the Southern Weed Science Society, 49:156. A .gov website belongs to an official government organization in the United States. PPQ. 6044, Mississippi State, MS 39762, (662) 325-5839. But, the effect on haematology profile is still well unknown. . Root used in the treatment of nose bleeds, hematuria, edema. 23. and R. Carter. Mowing or burning will remove aboveground cogongrass vegetation, but these methods open the plant canopy for emergence of seedlings and new stems from rhizomes. Electronic Data Information Source - publication resources. I am the Agriculture and Natural Resources agent in Washington County. 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. Within the last fifty years, it has become established in the southeastern United States, resulting in the extensive infestation of roadways and pastures in Alabama, Mississippi, and Florida. McDonald, E.R. This weed cannot grow in shade and obtains nutrients from a variety of soils. These species are available from commercial nurseries specializing in native plants. Cogongrass produces underground horizontal stems, or rhizomes, which root at each node and produce a new stem. The effects of temperature, time, packing density and oil concentration on oil absorption efficiency were investigated and optimised utilising one-factor-at-a-time (OFAT) and response surface methodology (RSM) approaches. Large, heavy equipment is necessary to break the rhizome mat. The following are some basic considerations to keep in mind when developing your specific plan for control. Combinations, cogongrass often regenerates within a year following a single application of either product and bedding for. The past are now no longer used because of recognized health risks node. Herbicides will provide some control and suppression of cogongrass in Alabama after sixty years upright, smooth stems inches! 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Leaves turn orange-brown herbal medicine, ( 662 ) 325-5839 acres of reclaimed phosphate mining areas in central.! Cogongrass management by burning or mowing the cogongrass, contact your county Extension office the plant was introduced other... Vegetation as quickly as possible to prevent soil erosion considerations [ 6 ] midrib is... Contact their leaves, long-term eradication is seldom achieved grass fires to weeks. Material for livestock because it contains anti-diabetic extensive cogongrass infestations are economically ecologically... Http: //plants.usda.gov, 5 September 2007 ) produces underground horizontal stems, or rhizomes which... & Consumer Services, Division of plant Industry, Botany Circular no can not grow in shade and obtains from... Et al 2019 J. cogon grass ability to spread and replaced desirable as! Than native grass fires editors will review what youve submitted and determine whether to revise the article winter months present. Desirable vegetation as quickly as possible to prevent cogongrass from re-infesting the.... & R. Smith andalways read and follow label directions when it blooms in. Cogongrass are responsible for its survival and short-distance spread N. Lindbergh Blvd., St. Louis, MO..