Two applications of Acclaim Extra Selective from a tank sprayer mixed with Adept surfactant are all that was needed…takes about 2 weeks to see results. Josh in Annapolis has another idea. He writes: “I’m also thinking about laying down cardboard or newspaper covered with compost early in the season to kill everything and then reseed in the fall. Large populations likely require herbicide treatment. MCPA/MCPP In landscapes, applying a suitable mulch, such as wood chips or landscape fabric, prior to seed germination can be effective. Luckily you shouldn't need the chemicals you mention above to best gain control of the invasive Japanese stiltgrass. Leaves are narrow and lightly hairy. Japanese stiltgrass (Microstegium vimineum) is bright green with a distinctive silvery stripe of reflective hairs along the midrib of each narrow, lance-shaped blade. It is highly invasive and is now found in much of the eastern U.S. Invasive Japanese stiltgrass is a scourge of so many local lawns because it thrives in the kind of moist, shady conditions that prevent success with turfgrass. I hate to have the lawn guy use the tractor attachment again because it tore up a lot of grass as well. HELP! All rights reserved. 2,4-D is the oldest and most widely used herbicide for broadleaf weed control in turfgrass. Bayer and the Bayer Cross are registered trademarks of Bayer. Japanese stiltgrass (Microstegium vimineum), also called Nepalese browntop, is an aggressive invader of forest lands throughout the eastern United States. Almost certainly illegal, this plan is also foolish, Josh. Early control of new infestations and preventing the drop of viable seed are critical for preventing the establishment and spread of Japanese stiltgrass. Description: Herbaceous, annual grass, 1-3' tall, with a branching habitat.Plant resembles a small, edlicate bamboo. Ph.D., Green Solutions Team Specialist. Causes of disturbance include scouring floods and soil disturbing activity such as the use of heavy equipment (especially logging), tilling, mowing, construction activities, and heavy animal impact, including that fro… Detailed information about the use of cookies on this website and how you can manage or withdraw your consent at any time can be found in our. By Rick on 08/27/2012. Control strategies include early spring to early summer herbicide applications for maximum efficacy. ALWAYS READ AND FOLLOW LABEL INSTRUCTIONS. Japanese stiltgrass is an annual plant, not a perennial. website is not intended for users located within the European Economic Area. Japanese stiltgrass was assessed by OIPC in May 2014 and received a score of 60 (out of 80 potential points), so it is in our invasive category, well above 45 points. (Just make sure the new seed matches the old lawn or it’ll look like a patchwork of weeds!). But you might be able to succeed by taking the opposite tack. It has been spreading rapidly throughout the state in the last 10 years and has been documented in at least two-thirds of the state. A string trimmer can be effective later in the season if you cut the stiltgrass off at ground level (Figure 1). By using dry ice on the Japanese stiltgrass in late August, it may be killed and prevent reinvasion for a couple of years. Japanese stiltgrass (Microstegium vimineum) is an invasive annual grass. Like many of you, Josh in Annapolis is battling invasive Japanese stiltgrass — a weed that looks tough but actually pulls easily out of soaking wet soil. And no type of fescue can spread, so you need to overseed every season or so. 2019 Status in Maine: Localized.Severely Invasive. Stiltgrass control in a nutshell. Japanese stiltgrass (Microstegium vimineum) is a summer annual grass that generally grows 1-3 feet in a branching, sprawling, mat-like manner.Its pale green leaves alternate along a branched stalk, and it resembles a small bamboo plant. Japanese Stiltgrass is now under control. We've been told that herbicides are the best way to get rid of it, but we don't want to kill everything else in the yard. Small populations are fairly easy to eradicate with hand pulling. There are grasses — specifically fine fescues — that can survive with the least amount of sun, but they can’t handle foot traffic. Early Control It is common to first observe stiltgrass … Early establishment nearly always occurs along roadsides, stream corridors, and trials; rapid expansion … That’s why long–term control involves improving the soil more than mounting a direct attack. By pulling plugs of soil and sod out of the lawn with a giant machine, you reduce the compaction that causes wanted grasses to struggle and weeds to thrive. Getting rid of the existing plants and preventing viable seeds from dropping off of the plant and into the soil is the goal of eradication and to stop the further spread of Japanese Stiltgrass infestations. Detailed information about the use of cookies on this website and how you can manage or withdraw your consent at any time can be found in our Luckily, he also writes: “Or is there another natural way to do this?”. We've tried pulling it up by hand but can't seem to get it all. Mike McGrath was Editor-in-Chief of ORGANIC GARDENING magazine from 1990 through 1997. How has this relatively weak weed become the scourge of local lawns? Well, first, you’re correct to start in the fall, Josh; that’s the perfect planting time for new cool-season lawns in our area. Recommended Herbicides Stiltgrass is susceptible to a number of herbicides, Left unchecked, it is a real threat to our native species. It is best controlled on home lawns by crabgrass pre-emergent in the spring, before germination. Japanese stiltgrass (Microstegium vimineum) Japanese stiltgrass is a non-native annual grass that was introduced to the southeastern U.S. from Asia in the early 1900s. Japanese stiltgrass - Microstegium vimineum. Garden Plot: Is it safe to plant summer tomatoes? If you have successfully controlled this weed one year, you may want to consider the use of a pre-emergent herbicide in subsequent years. Josh in Annapolis’ plan to set his lawn on fire to fight Japanese stiltgrass sounds dangerous, ineffective and downright illegal. Early control is your best bet, and to eliminate it, you have to prevent seed production. Japanese stiltgrass is able to establish and thrive in a wide range of habitats, and is most often associated with acidic to neutral, moist soils that are high in nitrogen. After disturbance, Japanese stiltgrass readily takes advantage of shaded areas, but can proliferate in sunny openings as well. Because of this, the Potomac District Resource Specialist for the Virginia Department of Conservation and Recreation (DCR), Justin Vollmer, is testing an alternative method of controlling the Japanese stiltgrass. Has a weak and shallow root system.Closeup of leaf bladePhoto: Bruce Ackley, The Ohio State University, Bugwood.orgNotice silvery stripe of reflective hairs downmiddle of the leaf surfacePhoto: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Infestations can impact the diversity of native species, reduce wildlife habitat, and disrupt important ecosystem functions. Imazapic or metsulfuron methyl may be used for both pre-emergent and post-emergent control of Japanese stiltgrass, but post-emergent (mid-to late season) applications can cause significant damage to non-target species. We’re not talking sagebrush here; grasses are 90 percent water — you’ll never keep them lit! Grim outlook for Maryland restaurant business in survey. Instead of hoping to smother, insure the death of the old turf with proper soil solarization. Mechanical Control Small infestations of stiltgrass are readily pulled. Controls for Japanese Stiltgrass Control measures can be effective when targeted to newly infested areas with relatively small Japanese stiltgrass populations. Mechanical Control Small infestations of stiltgrass are readily pulled. The seed of Japanese stiltgrass and … This chemical is particularly effective for control of weeds with taproots such as dandelion, broadleaf plantain, mustards, and shepherd’s purse. Japanese stiltgrass may be driving you crazy, but don't go for the torch just yet. Herbicides specifically labeled for Japanese stiltgrass control include: imazapic (Plateau), fenoxaprop-p (Acclaim Extra), imazamox (Clearcast) and metsulfuron + sulfometuron (Sulfomet Extra). Scalp the lawn down as low as possible this spring; you want to see dirt blow out the back of the mower. A mower cuts too high and will not work, as stiltgrass is a common weed in turf. Roundup, which kills everything, was the only solution to rid Stiltgrass from my lawn. From forested floodplains to forest edges, stream banks, fields, trails and ditches, it is known for colonizing lawns and gardens too. Perennial, warm season grass. Mike McGrath shares tips and tricks to getting rid of those pesky weeds in your lawn without all the fire and fury. Japanese Stiltgrass Microstegium vimineum. But with the proper steps, not impossible. These well-established populations can only be controlled with a substantial investment of manpower and resources over a long period of time; therefore, early detection and rapid response are two cost-effective keys to keeping this species at bay. Applied 2 to 3 weeks before seed germination, it can prevent germination and reestablishment of stiltgrass. Understanding a weed's lifecycle is needed to know the best (and least toxic) way to handle them. So let the plants grow taller than normal and torch the tops of the stiltgrass with a flame weeder in August to destroy those seeds. Acclaim® Extra Herbicide offers reliable postemergence control of crabgrass and goosegrass without harming cool-season turf. Japanese stiltgrass is an early-germinating warm-season annual that is problematic in the mid-Atlantic region and spreading to the north and west. It manages to replace native vegetation in a lot of ecosystems. Nimblewill goes dormant in the fall and looks straw-like then begins to green up again in spring It germinates in spring and grows slowly through the summer months, ultimately reaching heights of 2 to 3½ ft. Log in to your WTOP account for notifications and alerts customized for you. Invasive Japanese stiltgrass is a scourge of so many local lawns because it thrives in the kind of moist, shady conditions that prevent success with turfgrass. Japanese stiltgrass spreads rapidly, and out-competes native vegetation in areas of low light. Not all products are registered in all states. This enables us to improve your future experience on our website. --- Jason and Tina in Patterson, New York A. Flower spikes grow on top of each stem before the plant sets seed in late August to September. by This article displays images to assist with identification and provides recommendations for control, including a management calendar and treatment and timing table. Japanese Stiltgrass Control in the Greater Lehigh Valley, PA area Let us target Japanese stiltgrass growth in your yard and strategically remove it so your lawn can be healthy again. Because it thrives in the kind of moist, shady conditions that make turfgrass struggle. Japanese Stiltgrass Microstegium vimineum (Trin.) Once Japanese stiltgrass becomes established in an area, it can spread rapidly and form dense monocultures that can suppress most native plant species. It depends on seeds dropped in the fall to survive year to year (just like crab grass). This website is not intended for users located within the European Economic Area. Bayer Environmental Science, a Division of Bayer CropScience LP, 5000 CentreGreen Way, Suite 400, Cary, NC 27513. What should we do? Zac Reicher But do that — improve the drainage and spread fresh seed in the fall — and you just might stiff the stiltgrass. © 2018 WTOP. Then stretch clear plastic (2 mil is ideal) overtop and anchor the edges down well. Control of Japanese stiltgrass is a challenge, but can be achieved through consistency and vigilance. This Keep pulling! Privacy Policy. I was hoping I could burn the whole lawn in August and replant in September but I hesitate because it’s dry that time of year and fire can have a tendency to get out of control.”. A lawnmower cuts too high and will not work, as stiltgrass is a common weed in turf. All Rights Reserved. Mow at the proper height for your selected adapted turfgrass. Japanese stiltgrass is a summer annual that prefers to grow in damp, shady spots. Thanks to Acclaim! Failing retaining wall will force people from their homes in Prince George’s Co. Baltimore’s new mayor: Goal is to ‘preserve’ people’s lives, Lawmakers say they are willing to call special session to override Trump NDAA veto, 14 Fort Hood soldiers fired, suspended over violence at base, AP sources: Biden picks Lloyd Austin as secretary of defense, Congress will let federal employees carry over more annual leave into 2021. Weed Seed - Japanese stiltgrass (Microstegium vimineum) Japanese stiltgrass is an invasive plant found in a variety of habitats, including forests, wetlands and disturbed areas. The leaves are one to three inches long and alternately arranged on a branched stalk resembling a smaller, more delicate version of bamboo. For additional product information, call toll-free 1-800-331-2867. www.environmentalscience.bayer.us. He has been the host of the nationally syndicated Public Radio show “You Bet Your Garden” since 1998 and Garden Editor for WTOP since 1999. Japanese stiltgrass Single specimen of Japanese stiltgrass, a non-native invasive plant in the United States Scientific classification Kingdom: Plantae Clade: Tracheophytes Clade: Angiosperms Clade: Monocots Clade: Commelinids Order: Poales Family: Poaceae Subfamily: Panicoideae Genus: Microstegium Species: M. vimineum Binomial name Microstegium vimineum A. Camus Microstegium vimineum, commonly known as Japanese stiltgrass, packing grass, or Nepalese browntop, is an annual … WTOP.com | Alexa | Google Home | WTOP App | 103.5 FM, DC update includes stimulus check, delayed HS sports, Garden Plot: ‘Good luck and good night’ — at least for now, Garden Plot: As Graham Nash sang — ‘mulch your tomatoes well’. Then you can just pull out the dead stiltgrass clumps and overseed the lawn instead of starting over. Post-Emergent Methods of Control A feasible control method is to apply recommended preemergence herbicides to lawns in the spring before germination. ©2020 Bayer CropScience LP. How I should go about doing this?”. A trimmer can be effective later in the season (Figure 1), if you cut the stiltgrass off at ground level. , Here are some steps you can take to eliminate it: Core aeration in the fall can improve your lawn’s drainage, but shade is a tougher issue. (You’ll find lots more details and links about soil solarization in this article Mike penned for his Public Radio show some years back.). The correct way, Josh. This invasive grass is found in every southern Indiana county, including Monroe County. Stiltgrass took over a good portion of my yard last year. Mike will appear Saturday, March 17 at noon and 3 p.m. and Sunday, March 18 at noon and 2 p.m. at the Fredericksburg Home & Flower Show at the Expo Center in Fredericksburg. It is very difficult to control once established. Control of Japanese Stiltgrass infestations should occur as early as possible when the weed has been noted in either yards or landscapes. Why should I be concerned? Like WTOP on Facebook and follow @WTOP on Twitter to engage in conversation about this article and others. Growing one to three feet tall, Japanes… Saturate the flattened area with water; more than you think you can possibly need. If the lawn drains poorly, plan to have a core aeration performed at the end of August. Cultural Control. Verified Purchase. There are no known biological control methods. Japanese stiltgrass is an annual weed that is also known as Nepalese browntop and Asian stiltgrass. We would like to use cookies to better understand your use of this website. Plateau may be applied preemergence or postemergence to Japanese stiltgrass. Copyright © 2020 by WTOP. Figure 1. Josh in Annapolis, Maryland, writes: “I would like to start my lawn from scratch this coming fall. This plant's prolific seed production and rapid growth helps it dominate entire habitats, edging out native vegetation. Some weeds not controlled well by 2,4-D are white clover, chickweed, purslane, and ground ivy. Control strategies include early spring to early summer herbicide applications for maximum efficacy. Maintain a dense, actively growing turf through proper mowing, fertilizing, and watering practices. Download PDF Save For Later Print Purchase Print Our lawn is being invaded by Japanese Stilt grass! Japanese Stiltgrass can be a difficult nemesis to control, but there are ways to tackle it. Japanese stiltgrass is an early-germinating warm-season annual that is problematic in the mid-Atlantic region and spreading to the north and west. Then pulling out the existing stiltgrass from soaked soil followed by some fresh seed may be all you need to do. Prevent reinvasion for a couple of years ) way to do a management calendar and treatment timing! Care Reviews by our Customers we would like to use cookies to better your! 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