CONTACT YOUR STATE DEPARTMENT OF AGRICULTURE FOR ANY ADDITIONAL PESTICIDE USE REQUIREMENTS, RESTRICTIONS OR RECOMMENDATIONS. Southeast Asia, Philippines, China, and Japan. Native to Southeast Asia, cogongrass is an aggressive invasive plant that that has spread to all continents except Antarctica (MacDonald 2004) and is considered among the worst problematic weeds on a global scale (Holm et al. DESCRIPTION Cogongrass is a loose to densely compact aggressive perennial that grows with ascending to erect culms. A single plant can Cogon grass can be kept in control, by keeping it short, like other grass. the management of cogon grass, please contact: SUGGESTED ALTERNATIVE PLANTS HABITAT IN THE UNITED STATES MANAGEMENT OPTIONS of Agriculture, Division of Plant Industry. DESCRIPTION Cogon grass is a perennial, rhizomatous grass that grows from 2 to over 4 feet in height. forests, open fields, and up to the edge of standing water. The Ivatans are a Filipino ethnolinguistic group predominant in the islands of Batanes of the Philippines. For more information on management of cogon grass has been achieved by the following combined mechanical-chemical herbicides will help to control cogon grass. Once control of cogon grass has been achieved, it is essential to introduce desirable vegetation as quickly as possible to prevent cogon grass from coming back to infested the area. F lorida Department of Ag- riculture & Consumer Services, Division of Plant Industry Botany Circ u lar No. by the wind. Agronomy Department, University of Florida, In this article we will talk about how to control cogon grass in your yard. It maintains moisture in the soil which weakens this weed. Cogon grass displaces a large variety of native plant The best time to apply herbicides is in the early Soil sterilizers such as prometon, tebuthiuron, and imazapyr will perform excellent in controlling the cogon grass. About six to eight weeks National Plant Data Center, Baton Rouge, LA 70874-4490 USA. Jeffrey Lotz and Luanne Marsh with However, it is unclear if the grass is still being used today for making traditional Chinese medicine. http://www.invasive.org/weedus/subject.html?sub=2433. attempting this technique, contact management specialists listed below for Ecological consequences Lippincott, C. L. 1997. The leaves are about an inch wide, have a prominent white midrib, and end in a sharp point. This should be done more than once as with the chemical method. However, in the long run, you want to make sure that you are getting rid of cogon grass for good. This is also the best time to get rid of all the roots as well. Each scenario will require a different approach to return Chemical removal is recommended to ensure that there is no chance of the grass returning. This is because cogon grass is highly flammable, even if the grass is still green. In areas From the rhizomes, new plants are forming. NATIVE Roundup’s Glysophate will perfectly control all vegetation present at the time of treatment. is usually hairless. imazapyr is highly active in soil, it has a high potential for leaching into The less cutting the grass gets, the more cogon grass will spread and grow. Continuous flooding can also be helpful in eradicating this plant as it cannot stand continuous flooding. Cogon grass was introduced Cogon Grass: Imperata cylindrica. In the native countries, cogon grass is growing all over the countryside. Johnson, E. R. R. L. and D. G. Shilling. infestations of cogon grass can alter the normal fire regime of a fire-driven been reports of cogon grass surviving as far north as Virginia, West Virginia It has an extensive fibrous root … Burning down cogon grass should take place during summer. purposes. and Maryland. It has also been introduced to Latin America, the Caribbean, and the southeastern United States. )is a warm-season perennial grass species found throughout tropical and sub-tropical regions of the world (Hubbard 1944). to cogon grass management, including chemical, mechanical and cultural methods, cogon grass. It is hard to get rid of. of Imperata cylindrica (cogon grass): Invasion in Florida Sandhill. for use as a forage grass and for soil erosion Cogon grass The flowers are used in the treatment of haemorrhages, wounds etc. Description In North America, it threatens the integrity of southeastern pine agroecosystems, including longleaf pine (Pinus palustris Mill.). year�s growth and the accumulated thatch layer. It can If you are interested in solution of imazapyr (e.g., Arsenal®) may be considered. Swearingen, J. DESCRIPTION Rhizomes Pulling out these plants will not do you much good because the rhizomes have grown deep. Wear safety goggles, long sleeves, long trousers. The leaves are about an inch wide, have a prominent white midrib, and end in a sharp point. DISTRIBUTION Along roadsides, bahia grass (Paspalum notatum) is NOTICE: MENTION OF PESTICIDE PRODUCTS ON THIS WEB SITE DOES NOT CONSTITUTE ENDORSEMENT OF ANY MATERIAL. Cogongrass is found in most publicly-owned sandhills remaining in Florida, arriving as rhizome sagments in fill or soil by seed. later, when about eighty percent of the cogon grass has resprouted to a height A number of The two words put together is “flaming cogon grass”. important to exercise diligence, as it will be necessary to scout areas that Panicles 10-40 cm long, spike-like, dense, sometimes lobed near It is frequently sold across the U.S. in plant nurseries and is widely available over the Internet for ornamental use. In the end I managed to eradicate the plant after a fierce battle, and through this website I want to help others get rid of their invasive plants. For some countries, cogon grass is native and a normal sight in grasslands and fields. The long leaves feature a sharp terminal point and are embedded with silica crystals. an area previously infested with cogon grass to a healthy ecosystem. Today, cogon grass is among the Top 10 worst weeds in the world, specifically number 7. It may not be possible to use all of the methods Cogon grass is also a danger because it is highly flammable and can catch fire, even if the grass is still green. But the grass will always grow back, because the roots don’t burn and die as what people might think. Protect yourself when using chemicals. It is also grows in grasslands, and yards that are neglected. That is, no other plant will be able to grow on that particular piece of land. Its erect habit, fluffy white inflorescence and extensive rhizome system makes Imperata cylindrica grassdistinct from most other weeds. groundwater, so should only be used when groundwater impacts can be eliminated A young infestation will be much easier to treat and eradicate than established infestations. factors influencing the management of cogon grass (Imperata cylindrica). protocol. Leaf margins are finely toothed and are embedded with silica crystals. becomes more difficult. Try to plant tender seedlings. of Florida, Weed Science / Agronomy, Center Director and Professor, West Cogon grass is native to places like Asia, Australia, Africa, and southern Europe. REFERENCES AUTHORS Cogon grass is a noxious weed in rice, cotton, coffee, cinchona, tea, oil-palm, coconut, rubber and teak plantations. Cogon It is important to remove the plant as soon as you find it in your lawn or in your yard. Animals can also spread the seeds. to the United States both accidentally and intentionally. Removing it during the dry season is the best. The upper surface of the leaf blade is hairy near the base; the undersurface Description Cogongrass Rhizome Mass Chokes Other Vegetation Vegetative Growth Cogongrass produces numerous upright smooth stem 6 to 47 inches tall, which form loose or densely compacted stands. cogon grass, making followup control a necessity. Botany Description Cogon Grass Root Powder (Imperata cylindrica) The flowers and the roots are antibacterial, diuretic, febrifuge, sialagogue, styptic and tonic. Where the seeds land, new grass will grow. Continuous application of herbicides and continuous uprooting is necessary. Native to Asia, Australia, Africa, and southern Europe. It is essential that you remove cogon grass correctly. The PLANTS Database (http://plants.usda.gov). Some control measures, such as mowing and spot spraying with Increases in cogon grass concern ecologists and conservationists because of the fact that this species displaces native plant and animal species and alters fire regimes. I am passionate about invasive plants and love sharing everything I learn about them. There have This can have a negative effect on the environment and wildlife. In most countries, this grass is known as the worst weed in the world. It should be removed before it seeds. It has a razor sharp margin with a hairy planned, and non-target plant damage is not a concern, application of a 1-1.5% Also, be sure to obtain all required permits before Your email address will not be published. SUMMARY A problem statement is a clear description of the issue(s), it includes a vision, issue statement, and method used to solve the problem. RANGE It is tufted, creeping (semi-prostrate) and rhizomatous. branching structure, or panicle, about 3-11 inches long and 1½ inches ECOLOGICAL THREAT Some countries are calling this grass kunai grass instead of cogon grass. Donn G. Shilling, Ph.D., University of Florida, Key Identification Features of Cogongrass Flower/Seed head Cylindrical in shape 2-8 inches in length (total flower or seed head) Silvery white in color Light fluffy dandelion-like seeds Blooms from late March to mid June (flower timing rhizomes that may remain dormant for extended periods of time before sprouting. First, the infested area is mowed in late spring to remove last species used by native animals (e.g., insects, mammals, and birds) as forage, Early detection of cogon grass in any setting is extremely important. Especially during the dry season. Cogon grass leaf blades can grow to 4 feet tall and can be easily identified by its leaf blades having a midvein noticeably off-center. [Discing Florida Research and Education Center, (850) 484-4482 or 983-2632, dgs at gnv.ifas.ufl.edu, Eric R. R. L. Johnson, University of Florida, is necessary to achieve successful, long lasting control. Cogon grass, or also known as Imperata cylindrica, is grass that normally grows in the grasslands of tropical and subtropical countries. There are people that are burning down the field, in order to get rid of the grass. It should be applied continuously and overtime the cogon grass would not grow in that soil again. The culms (above-ground stems) are short, erect and arise from rhizomes (underground stems). Cogon grass, Imperata cylin dricl (L.) Beauv. I. cylindrica is a perennial grass which varies in height (30-150 cm). grass has been found growing on sand dunes in the southeast, along roadsides, It is a known invasive plant because it grows rapidly and has more than one way of spreading. Revisit treated areas Cogon grass can easily travel to new spots and start to reproduce from underground. Cogon Grass Japanese Blood Grass This plant is an invasive species in North Carolina Description Japanese Bloodgrass is an extremely aggressive weed that is considered invasive in North Carolina. The leaf margins are finely toothed, and the upper leaf surface is typically hairy near the base. The leaves are about 2 cm wide near the base of the plant and narrow to a sharp point at the top; the margins are finely toothed and are embedded with sharp silica crystals. Countries that have lots of grasslands and fields that are still growing naturally. the ultimate goal of the restoration project,  revegetation plans should 1998. where burning, mowing, or discing, are not possible, spot treatment with It mostly grows in moist sand. Leaves: Leaf sheaths relatively short, glabrous or pubescent; ligule a membrane, 0.5-1 mm long. Agronomy Department, University of Florida, Gainesville, Florida. Polyurethane used is a POLYETHER (PTMEG) TDI PREPOLYMER (Erapol L-E83A) which has a density of 1.05 gm/cm 3 at a room temperature of 25 °C, and a viscosity of 1000–1500 cps. It is often described as being non-invasive, although published proof of this claim is lacking. NOTICE: MENTION OF PESTICIDE PRODUCTS ON THIS WEB SITE DOES NOT CONSTITUTE ENDORSEMENT OF ANY MATERIAL. In the countries where the grass is introduced and where it isn’t native, it is a weed that needs to be removed as soon as possible. Cogon grass was introduced to Latin America, the Caribbean, and the southeastern United States. Cogon grass can be dangerous because it is highly flammable, even if the grass is still green. Voice mail (352) 392-6598 ext 310, errlj at nersp.nerdc.ufl.edu. BIOLOGY & SPREAD It grows from 0.6-3 m tall. 2009. After using this herbicide, crops can be planted immediately because glyphosate has low residual soil activity. This is due to the sharp edges of the leaves that cause irritation in the mouth when they chew on it. USE PESTICIDES WISELY: ALWAYS READ THE ENTIRE PESTICIDE LABEL CAREFULLY, FOLLOW ALL MIXING AND APPLICATION INSTRUCTIONS AND WEAR ALL RECOMMENDED PERSONAL PROTECTIVE GEAR AND CLOTHING. native plants should be considered for replanting areas that were infested with Dissertation. Another reason why many countries find this grass a threat that needs to be taken out. a control program is late spring to mid-summer when cogon grass is experiencing Cogongrass (Imperata cylindrica (L.) Beauv. Burn down the particular area where cogon grass is growing. The use of herbicides for control of cogon grass started as early as the 1940s. “Cogongrass is a perennial that varies greatly in appearance. This can simply be added onto bare soil. The major way it grows is through its underground rhizomes. 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