(Kyllinga brevifolia Rottb.) false-green kyllinga flowers only during late summer. Dismiss can be applied at up to 4 fl. False Green Kyllinga Trial. Cooperating Agencies: Rutgers, The State University of New Jersey, U.S. Department of Agriculture, and County Boards of Chosen Freeholders. Figure 1: A severe false-green kyllinga infestation in an athletic field. ISSN : 0890-037X. Both are perennial species with well-developed rhizomes. False-green kyllanga injury was assessed 3, 9, 16, 23, and 30 days af-ter treatment (DAT) (Table 2). All sedges and kyllingas are perennial plants that are troublesome to manage and control in a turfgrass environment. and kyllingas (Kyllinga linga (Kyllinga gracillima Miq.). Future research will evaluate herbicide programs in combination with seeding. Maps. Image 2100021 is of false green kyllinga (Cyperus brevifolioides ) flower(s). Apply with a non-ionic surfactant at 0.25% v/v. Figure 2. False-green kyllinga seedhead production is influenced by day-length. 88 Lipman Drive, New Brunswick, NJ 08901-8525 It is a warm-season perennial weed that emerges in late spring/early summer when soil temperatures increase, and it grows rapidly throughout the summer months before going dormant after the first frost in the fall (Figures 2 and 3). Maps. There are 2 types of kyllinga – green and false kyllinga. There are 2 types of kyllinga – green and false kyllinga. Green kyllinga (Kyllinga brevifolia) and false green kyllinga (Kyllinga gracillima) are very similar in appearance, and both are referred to as green kyllinga. false green kyllinga Kyllinga gracillima Miq. A difficult-to-control perennial sedge, false green kyllinga (Kyllinga gracillima) spreads via rhizomes below the soil surface to form a dense mat that can choke out stands of desirable turf species. often look pale green and grow in tufts, or bunches. The light green areas are kyllinga. False-green kyllinga is an aromatic rhizomatous mat-forming perennial, which may tolerate golf course putting green mowing height. Top of page. False-green kyllinga produces seeds with a smooth keel. Figure 2. Unmanaged, false green kyllinga will go dormant after the first frost, and will return and expand each growing season. If solitary plants of green kyllinga are found, they should be grubbed out (i.e., remove the entire plant, roots and all) and the area monitored for several months to ensure removal was complete. oz./A) Note: Many products contain sulfentrazone in combination with other herbicides but often at rates too low for kyllinga or yellow nutsedge suppression. Further research is needed to assess the potential … Results may not be evident for up to 3 weeks after application. A close relative of yellow nutsedge, it prefers wetter soils with poor drainage as well as areas that receive frequent irrigation. They are able to thrive and reproduce at mowing heights ranging from 0.5 in to 3 in. Green and false green kyllinga are found on greens, tees, fairways and rough. Of the two predominant sedge species in Tennessee, yellow nutsedge is more easily controlled than purple … Therefore, it is very important to understand that control is achieved with MULTIPLE applications of Dismiss or SedgeHammer. Cockscomb kyllinga is found in fairways and rough. Both are perennial species with well-developed rhizomes. This is a warm season weed. Mode of Action: ALS inhibitor Sequential applications of halosulfuron-methyl or single applications of imazosulfuron have provided greater kyllinga control than sequential applications of sulfentrazone at 4 and 6 fl. It is important to make sure that you cut or fraze deep enough to remove the rhizomes. Sequential applications of bentazone and MSMA, single applications of halosulfuron, sulfentrazone applied at 0.42 and 0.56 kg/ha, and single and sequential applications of trifloxysulfuron controlled false-green kyllinga by at least 10% greater than green kyllinga at 1 YAIT. Photo and data courtesy of Rutgers University, 2018. Selected Images. False-green kyllinga is also very similar to green kyllinga (Kyllinga brevifolia), but green kyllinga is typically found in the southern and western U.S. False-green kyllinga is the only species reported in northern regions of the U.S., which is probably due to greater cold tolerance than green kyllinga. Maryland. encouraged to direct suggestions, comments, or complaints concerning any accessibility issues Figure 1. This herbicide should be applied with a suitable surfactant as indicated by the label. Averaged over herbicide and placement level, false-green kyllinga shoot number … Mode of Action: ALS inhibitor ANSWER: Green kyllinga is a type of sedge that is a common lawn weed, especially in areas that tend to stay damp. Kyllinga species are becoming a more wide-spread problem weed in highly managed turfgrass. False-green kyllinga flowers from late August un-til frost, whereas green kyllinga flowers throughout the summer until frost. Although false-green kyllinga does not have tubers like yellow nutsedge, its rhizomes make it extremely difficult to control. False-green kyllinga (Kyllinga gracillima) has become increasingly problematic in the Mid-Atlantic and Northeast regions over the past several years. Sequential applications of bentazon and MSMA, single applications of halosulfuron, sulfentrazone applied at 0.42 and 0.56 kg/ha, and single and sequential applications of trifloxysulfuron controlled false-green kyllinga at least 10% greater than green kyllinga at 1 YAIT. They are able to thrive and reproduce at mowing heights ranging from 0.5 in to 3 in. Green kyllinga was seemingly more difficult to control than false-green kyllinga. It is by Charles T. Bryson at USDA Agricultural Research Service. False-green kyllinga (Kyllinga gracillima) is a warm-season perennial sedge (Cyperaceae) species that has become increasingly problematic in cool-season turfgrass. When a single stem is viewed from the above these species have three leaves spaced at 120° angles. Studies were conducted to evaluate the absorption, translocation, and metabolism of ¹⁴C-halosulfuron and ¹⁴C-trifloxysulfuron when foliar applied to green and false-green kyllinga. It grows prolifically in poorly drained areas or areas that are frequently wet. Field experiments were conducted to evaluate The dense mat continues to expand as the underground stems (rhizomes) spread outwards ultimately displacing the desired turfgrass. Kyllinga infestations can also spread across larger distances by seed. These weeds thrive under mowing and are prolific in areas that are poorly drained or frequently wet. A close relative of yellow nutsedge, it prefers wetter soils with poor drainage as well as areas that receive frequent irrigation. Green kyllinga was seemingly more difficult to control than false-green kyllinga. Kyllinga may be indicative of chronically excessive soil wetness, which should always be addressed as part of an overall treatment program. Good spray coverage is important for suppression with sulfentrazone. Green kyllinga (Kyllinga brevifolia) and false green kyllinga (Kyllinga gracillima) are very similar in appearance, and both are referred to as green kyllinga. Unlike purple nutsedge and false-green kyllinga, yellow nutsedge does not tolerate lower mowing heights. The presence of false green kyllinga can indicate a need to adjust irrigation output and/or improve drainage to alleviate perpetually saturated soil. Of the two predominant sedge species in Tennessee, yellow nutsedge is more easily controlled than purple nutsedge. Mention or display of a trademark, proprietary product, or firm in text or figures does not constitute an endorsement by Rutgers Cooperative Extension and does not imply approval to the exclusion of other suitable products or firms. All rights reserved. Kyllinga is relatively low growing so it thrives under mowing. sedge (Cyperus compressus L.), green kyllinga (Kyllinga brevifolia Rottb.) Flowering stalks of the kyllinga are triangular in cross-section and end in a globular, dense flower head consisting of green flowers. School of Environmental and Biological Sciences, New Jersey Agricultural Experiment Station, Office of Continuing Professional Education, Commercial Turfgrass and Landscape Maintenance Publications, Report Accessibility Barrier or Provide Feedback Form, Rutgers, The State University of New Jersey, Executive Dean of Agriculture and Natural Resources, Matthew Elmore, Assistant Extension Specialist in Weed Science, James A. Murphy, Extension Specialist in Turf Management. New Jersey. Kyllinga is relatively low growing so it thrives under mowing. It also occurs in Hawaii. It is by Charles T. Bryson at USDA Agricultural Research Service. Kyllinga, it may not be a weed you’re familiar with yet, but the quicker you’re able to recognize and control this invasive sedge the better. This herbicide is relatively new to the turfgrass market. 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