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Yellow Nutsedge (Cyperus esculentus) Management and Tuber Reduction in Bermudagrass (Cynodon dactylon × C. transvaalensis) Turf with Selected Herbicide Programs 1

  • David B. Lowe (a1), Ted Whitwell (a1), S. Bruce Martin (a2) and Lambert B. Mccarty (a1)


A 4-yr field study was conducted to evaluate yellow nutsedge suppression in ‘Tifway’ bermudagrass. Herbicide programs included preemergence (PRE) applications of metolachlor (3.4 kg ai/ha) and postemergence (POST) applications of imazaquin (0.28 kg ai/ha) plus MSMA (2.2 kg ai/ha) or halosulfuron (0.07 kg ai/ha) plus MSMA (2.2 kg/ha). Herbicides were applied to the same plots each year. Yellow nutsedge shoot suppression and tuber numbers were determined each year. Suppression of yellow nutsedge shoots increased over the 4-yr period from <74% in 1993 to >83% by 1996 with two annual applications of imazaquin plus MSMA or halosulfuron plus MSMA. PRE metolachlor applications did not suppress shoot production in any year; nor did they enhance suppression from POST treatments. Sequential applications of halosulfuron plus MSMA and imazaquin plus MSMA increased shoot suppression by 17 to 24% at 3 mo after initial treatment (MAIT) compared to single applications. All treatments reduced tuber numbers (>60%) after 4 years compared to untreated plots.


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1 Technical Contribution 4492 of the South Carolina Agricultural Experiment Station, Clemson University.



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Banks, P. A. 1983. Yellow nutsedge (Cyperus esculentus) control, regrowth, and tuber production as affected by herbicides. Weed Sci. 31: 419422.
Black, D. W. 1975. Chemical and cultural control of yellow nutsedge. . University of Illinois, Urbana. 49 p.
Coats, G. E., Munoz, R. F., Anderson, D. H., Heering, D. C., and Scruggs, J. W. 1987. Purple nutsedge (Cyperus rotundus) control with imazaquin in warm-season turfgrasses. Weed Sci. 35: 691694.
Derr, J. F. 1996. Controlling nutsedge in turf and ornamentals. Grounds Maint. 31 (5): 2633.
Fry, J. D., Dernoeden, P. H., Upham, W. S., and Qian, Y. L. 1995. Safety and efficacy of halosulfuron-methyl for yellow nutsedge topkill in cool-season turf. HortScience. 30: 285288.
Hill, E. R., Lachman, W. H., and Maynard, D. N. 1963. Reproductive potential of yellow nutsedge from seed. Weeds. 11: 160161.
Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1991. The World's Worst Weeds. Malabar, FL: Krieger Pub. Co. pp. 125133.
Hurt, R. T. and Vencill, W. K. 1994. Phytotoxicity and nutsedge control in woody and herbaceous landscape plants with Manage (MON 12037). J. Environ. Hortic. 12: 135137.
Johnson, B. J. and Murphy, T. R. 1992. Purple nutsedge control with imazaquin in bermudagrass turf. Georgia Agric. Exp. Stn.: Res. Bull. 408. 12 p.
Lapham, J. and Drennan, D. S. 1990. The fate of yellow nutsedge (Cyperus esculentus) seed and seedlings in soil. Weed Sci. 38: 125128.
Long, J. A., Allen, W. W., and Holt, E. C. 1962. Control of nutsedge in bermudagrass turf. Weeds. 12: 285287.
Nandihalli, U. B. and Bendixen, L. E. 1989. Soybean (Glycine max) competition helps imazaquin control yellow nutsedge (Cyperus esculentus). Pages 1820 In Yellow nutsedge (Cyperus esculentus) physiology and Control. Ohio Agric. Res. and Dev. Center. Ohio State University. Special Circular 126.
Reddy, K. N. and Bendixen, L. E. 1989. Chlorimuron for yellow nutsedge (Cyperus esculentus) control in soybeans (Glycine max). Pages 1517 In Yellow nutsedge (Cyperus esculentus) physiology and Control. Ohio Agric. Res. and Dev. Center. Ohio State University. Special Circular 126.
Stoller, E. W. 1975. Growth, development and physiology of yellow nutsedge. In Problem Weeds—Special Session on Nutsedge. Proc. N.C. Weed Control Conf. 30: 124125.
Stoller, E. W. and Sweet, R. D. 1987. Biology and life-cycle of purple and yellow nutsedges. (Cyperus rotundus and C. esculentus). Weed Technol. 1: 6673.
Tumbelson, M. and Kommedahl, R. 1962. Factors affecting dormancy in tubers of Cyperus esculentus . Bot. Gaz. 123: 186190.
Yelverton, F. H. 1996. Know your sedges. Golf Course Manage. 64: 5660.



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