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Limpograss (Hemarthria altissima) Tolerance to Hexazinone

  • Cody A. Lastinger (a1), José Luiz C. S. Dias (a2), Brent A. Sellers (a2), Jason A. Ferrell (a3), Maria L. Silveira (a4) and João M. B. Vendramini (a2)...


Field trials were conducted in 2013 and 2014 to investigate the tolerance of limpograss to increasing rates of hexazinone. Dose-response curves were generated using linear and quadratic regression models to determine the hexazinone estimated dose (ED) required to provide 10% (ED10) and 20% (ED20) of visual injury and herbage mass reduction. The ED10 and ED20 for visual estimates of injury were estimated to be 0.05 and 0.14 kg ai ha-1 at 60 d after treatment (DAT). Regarding forage herbage mass reduction, the ED10 and ED20 were estimated to be 0.07 and 0.19 kg ai ha-1 in 2013, whereas in 2014, the ED10 and ED20 were estimated to be 0.03 and 0.06 kg ai ha-1, respectively. The significant difference in herbage mass reduction between 2013 and 2014 was likely due to rainfall patterns, which possibly promoted hexazinone leaching in 2013 and consequently, less activity. Overall, hexazinone resulted in high degrees of limpograss injury across all response variables in both years; therefore, smutgrass control in limpograss pastures with hexazinone may not be a viable option. The presence or absence of smutgrass should be considered before limpograss establishment as there is no viable herbicide to selectively remove smutgrass from limpograss swards.


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Associate Editor for this paper: Kevin Bradley, University of Missouri.



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Brecke, BJ (1981) Smutgrass (Sporobolus poiretii) control in bahiagrass (Paspalum notatum) pastures. Weed Sci 29:553555
Brown, WF, Kalmbacher, RS (1998) Nutritional value of native range and improved forages: a perspective from Central and South Florida. 47th Annual Florida Beef Cattle Short Course. Gainesville, FL: University of Florida. Pp 7988
Burton, GW, Gates, RN, Gascho, GJ (1997) Response of Pensacola bahiagrass to rates of nitrogen, phosphorus and potassium fertilizers. Soil Crop Sci Soc Fla Proc 56:3135
Currey, WL, Parrado, R, Jones, DW (1973) Seed characteristics of smutgrass. Soil Crop Sci Soc Fla Proc 32:5354
Davy, J, Forero, L, Nader, G, Ditomaso, J, Kyser, G (2012) Managing Smutgrass in Irrigated Pastures. University of California Agricultural and Natural Resources. UC Peer Reviewed publication 8473. Accessed February 15, 2017
Dias, JLCS, Sellers, BA, Ferrell, JA, Enloe, SF, Vendramini, JM, Moriel, P (2017) Rainfall effects of giant smutgrass control with hexazinone in bahiagrass pastures. Florida Weed Sci Soc Fla Proc 39:7
Ferrell, JA, Dusky, JA, Mullahey, JJ, Roka, FM (2006) Competition of giant smutgrass (Sporobolus indicus) in a bahiagrass pasture. Weed Sci 54:100105
Ferrell, JA, Mullahey, JJ (2006) Effect of mowing and hexazinone application on giant smutgrass (Sporobolus indicus var pyramidalis) control. Weed Technol 20:9094
Lastinger, CA, Sellers, BA, Ferrell, JA, Vendramini, JMB, Silveira, ML (2016) Limpograss tolerance to herbicides is affected by time of year, but not regrowth height or fertilizer application timing. Crop, Forage and Turf Manag. doi: 10.2134/CFTM-2016-04-0033
Mislevy, P, Currey, WL, Brecke, BJ (1980) Herbicide and cultural practices in smutgrass (Sporobolus poiretii) control. Weed Sci 28:585588
Mislevy, P, Martin, FG, Hall, DW (2002) West Indian dropseed/giant smutgrass (Sporobolus indicus var. pyramidalis) control in bahiagrass (Paspalum notatum) pastures. Weed Technol 16:707711
Mislevy, P, Shilling, DG, Martin, FG, Hatch, SL (1999) Smutgrass (Sporobolus indicus) control in bahiagrass (Paspalum notatum) pastures. Weed Technol 13:571575
Newman, Y, Vendramini, JM, Sollenberger, LE, Quesenberry, K (2014) Limpograss (Hemarthria altissima): Overview and Management. Gainesville, FL: University of Florida, Florida Cooperative Extension Service. SS-AGR-320. 6 p
Pinheiro, JC, Bates, DM (2000) Mixed-Effects Models in S and S-PLUS. New York: Springer-Verlag. p 530
Quesenberry, KH, Dunn, RA (1978) Differential responses of Hemarthria genotypes to sting nematodes in a greenhouse screening trial. Soil Crop Sci Soc Fla Proc 37:5861
Rana, N (2012) Biology of Small Smutgrass (Sporobolus indicus var. indicus) and Giant Smutgrass (Sporobolus indicus var. pyramidalis) and Long Term Management of Giant Smutgrass. Ph.D dissertation. Gainesville, FL: University Florida. 97 p
Rana, N, Sellers, BA, Ferrell, JA, MacDonald, GE, Silveira, ML, Vendramini, JM (2013) Impact of soil pH on bahiagrass competition with giant smutgrass (Sporobolus indicus var. pyramidalis) and small smutgrass (Sporobolus indicus var. indicus). Weed Sci 61:109116
Rana, N, Sellers, BA, Ferrell, JA, MacDonald, GE, Silveira, ML, Vendramini, JM (2015) Integrated management techniques for long-term control of giant smutgrass (Sporobolus indicus var. pyramidalis) in bahiagrass pasture in Florida. Weed Technol 29:570577
Ritz, C, Streibig, JC (2005) Bioassay analysis using R. J Stat Software 12:122
Shaner, DL (2014) Herbicide Handbook. 10th edn. Champaign, IL: Weed Science Society of America. Pp 250251
Sellers, BA, Ferrell, JA (2013) Weed Management in Limpograss. Gainesville, FL: University of Florida, Florida Cooperative Extension Service. SS-AGR-334. 3 p
Sellers, BA, Ferrell, JA, MacDonald, GE (2008) Influence of hexazinone on Pensacola bahiagrass growth and crude protein content. Agron J 100:808812
Sellers, BA, Ferrell, JA, MacDonald, GE, Kline, WN (2009) Dogfennel (Eupatorium capillifolium) size at application affects herbicide efficacy. Weed Technol 23:247250
Sellers, BA, Ferrell, JA, Rana, N (2015) Smutgrass control in perennial grass pastures. Gainesville, FL: University of Florida, Florida Cooperative Extension Service. SS-AGR-18. 4 p
Schabenberger, O, Pierce, FJ (2002) Contemporary Statistical Models for the Plant and Soil Sciences. Washington, DC: CRC Press. Pp 504512
Shukla, A, Devine, MD (2008) Basis of crop selectivity and weed resistance to triazine herbicides. Pages 111118 in LeBaron HM, McFarland JE, Burnside OC, eds. The Triazine Herbicides: 50 Years Revolutionizing Agriculture. San Diego, CA: Elsevier
Wilder, BJ, Sellers, BA, Ferrell, JA, MacDonald, GE (2011) Response of smutgrass varieties to hexazinone. Forage and Grazinglands. doi: 10.1094/FG-2011-0222-02-RS



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