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Sodium Chloride Salt Applications Provide Effective Control of Sourgrass (Paspalum conjugatum) in Seashore Paspalum Turf

Published online by Cambridge University Press:  20 January 2017

James T. Brosnan ,
Joseph DeFrank ,
Micah S. Woods  and
Greg K. Breeden
James T. Brosnan*
Affiliation:
Weed Science, Department of Tropical Plant and Soil Sciences, University of Hawaii, 3190 Maile Way No. 102, Honolulu, HI 96822
Joseph DeFrank
Affiliation:
Weed Science, Department of Tropical Plant and Soil Sciences, University of Hawaii, 3190 Maile Way No. 102, Honolulu, HI 96822
Micah S. Woods
Affiliation:
Asian Turfgrass Center, 77/1 Moo 3 Bangplee, Bangsai Ayuddhaya, 13190, Thailand
Greg K. Breeden
Affiliation:
Department of Plant Sciences, University of Tennessee, 252 Ellington Plant Sciences Bldg., 2431 Joe Johnson Dr., Knoxville, TN 37996
*
Corresponding author's E-mail: jbrosnan@utk.edu.
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Abstract

Sourgrass is a stoloniferous perennial grassy weed found on golf courses throughout Hawaii. No herbicides are currently labeled for selective control of sourgrass in seashore paspalum turf, a species used regularly on golf courses throughout the tropics. A single granular application of fine salt (99% sodium chloride, 1% sodium silicoaluminate, 83% of particles 0.5 to 0.25 mm in diameter) at a rate of 1,464 kg/ha provided 84 and 23% control of sourgrass 6 wk after initial treatment (WAIT) in 2007 and 2008, respectively. Sequential granular applications of fine salt at 488 kg/ha provided 92 and 96% control of sourgrass in 2007 and 2008, respectively, at 6 WAIT. Granular applications of a coarse salt (100% sodium chloride, 75% of particles 2.0 to 1.0 mm in diameter) provided a lower level of control than fine salt at both the 1,464- and 488-kg/ha rates on three out of four rating dates in 2008; a similar trend was observed in 2007, but no significant differences were observed between these treatments. All salt treatments led to higher soil sodium adsorption ratios (SAR) and electrical conductivity (ECe) than the untreated check; however, levels reported in this study were significantly lower than the threshold SAR and ECe levels that have been associated with reduced seashore paspalum growth. Sequential applications of MSMA at 1.12 kg/ha and MSMA plus metribuzin at 1.12 kg/ha and 0.28 kg/ha, respectively, provided greater than 90% control in 2008, but less than 40% control in 2007. Greater seashore paspalum injury was observed following applications of MSMA and MSMA plus metribuzin than following salt applications. Additional research is needed to evaluate strategies for controlling sourgrass in seashore paspalum turf that do not induce phytotoxic injury after application.

Keywords

MetribuzinMSMAsourgrass, Paspalum conjugatum Berg. PASCOseashore paspalum, Paspalum vaginatum Swartz. PASVAChlorophyll indexchlorophyll metersalinitytoleranceturfgrass
Type
Weed Management—Other Crops/Areas
Information
Weed Technology , Volume 23 , Issue 2 , June 2009 , pp. 251 - 256
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Acosta, L. and Agüero, R. 2002. Control of Panicum zizanoides H.B.K. and Paspalum conjugatum Berg. under several strategies of management in banana (Musa AAA) plantation. Agron. Mesoamericana 13:117–121.Google Scholar
Ahmad Faiz, M. A. 2002. Efficacy of imazapyr and its mixtures against weeds under rubber. J. Rubber Res 5:41–52.Google Scholar
Anonymous 2005. Gramoxone inteon herbicide product label. Greensboro, NC: Syngenta Crop Protection, Inc. Google Scholar
Anonymous 2006. Arsenal herbicide product label. Research Triangle Park, NC: BASF Corporation, Agricultural Products.Google Scholar
Anonymous 2007a. Roundup Pro herbicide product label. St. Louis, MO: Monsanto Company.Google Scholar
Anonymous 2007b. Climate of Hawaii. National: Weather Service Climate Office. http://www.prh.noaa.gov/hnl/pages/climate_summary.php. Accessed: 18 December 2008.Google Scholar
Carrow, R. N., Waddington, D. V., and Rieke, P. E. 2001. Turfgrass Soil Fertility and Chemical Problems: Assessment and Management. Hoboken, NJ: Wiley. 103–130.Google Scholar
Chee, Y. K. 1990. Recent weed management developments in rubber. In. Proceedings of the Symposium on Weed Management, Bogor, Indonesia 189–197.Google Scholar
Duncan, R. R. and Carrow, R. N. 2000. Seashore Paspalum: The Environmental Turfgrass. Chelsea, MI: Ann Arbor Press. 4–138–139.Google Scholar
Fidanza, M. A., Clarke, B. B., Agnew, M. A., Kaminski, J. E., and Reed, T. 2007. Pesticide application research demonstrated at a field day event. J. Ext. 45, article 1IAW7. http://www.joe.org/joe/2007february/iw7.shtml. Accessed: December 18, 2008.Google Scholar
Greub, L. J., Drolsom, P. N., and Rohweder, D. A. 1985. Salt tolerance of grasses and legumes for roadside use. Agron. J. 77:76–80.Google Scholar
Hussein, I. and Weng, W. P. 1977. Use of glyphosate for selective control of Paspalum conjugatum and Ottochloa nodosa in established legume cover crops. Proceedings of the 6th Asian-Pacific Weed Science Society conference, Jakarta, Indonesia. 403–407.Google Scholar
Ilango, R. V. J. 2003. Evaluation of carfentrazone-ethyl for control of weeds in tea (Camellia spp. L.). Indian J. Weed Sci 35:296–297.Google Scholar
Ismail, B. S., Shukor, J., and Zanariah, M. 1990. Effects of herbicides on the germination of Asystasia intrusia and Paspalum conjugatum seeds. Proceedings of the Third International Conference on Plant Protection in the Tropics. Malaysian Plant Protection Society, Kuala, Lumpur. 297–300.Google Scholar
King, L. H. 1966. Weeds of the World. London: Leonard Hill.Google Scholar
Mangiafico, S. S. and Guillard, K. 2005. Turfgrass reflectance measurements, chlorophyll, and soil nitrate desorbed from anion exchange membranes. Crop Sci 45:259–265.Google Scholar
Marcum, K. B. and Murdoch, C. L. 1990. Growth responses, ion relations, and osmotic adaptations of eleven C4 turfgrasses to salinity. Agron. J. 82:892–896.Google Scholar
Pamplona, P. P. and Soerjani, M. 1975. Chemical weed control of sourgrass (Paspalum conjugatum Berg.) in rubber plantation. Proceedings of the Third Indonesian Weed Science Conference, Bandung, Indonesia. 155–163.Google Scholar
Pinho, A. F. S., Pereira, R. C., and Mueller, M. W. 1985. Effect of post-emergence herbicides in control of Paspalum conjugatum, Brachiaria mutica, and Hyparrhenia rufa. Informe de Pesquisas de 1983, Comissao Executiva do Plano da Lavoura Cacaueira Ilheus. 104–105.Google Scholar
Pool, N. B., Brecke, B. J., Unruh, J. B., MacDonald, G. E., Trenholm, L. E., and Ferrell, J. A. 2005. Managing weeds in seashore paspalum using saline irrigation. Florida: Weed Sci. Soc. Abstr. http://gcrec.ifas.ufl.edu/FWSS/FWSS20webpage-200520Sept-AM.htm. Accessed: December 17, 2008.Google Scholar
Sahid, I. B., Ibrahim, R. B., and Kadri, S. 1996. Effects of watering frequency, shade, and glyphosate application on Paspalum conjugatum Berg. (sourgrass). Crop Prot 15:15–19.Google Scholar
Senseman, S. A. 2007. Herbicide Handbook. Lawrence, KS: Weed Science Society of America. 159–160.377–378.Google Scholar
Sparks, D. L. 1996. Methods of Soil Analysis: Part 3—Chemical Methods. Series Number 5. Madison, WI: Soil Science Society of America. 417–436.551–574.CrossRefGoogle Scholar
Teuton, T. C., Main, C. L., Sorochan, J. C., McElroy, J. S., Hart, W. E., Sams, C. E., and Mueller, T. C. 2008. Hybrid Kentucky bluegrass tolerance to preemergence and postemergence herbicides. Weed Technol 22:240–244.Google Scholar
Wiecko, G. 1999. Crabgrass (Digitaria spp.) and mimosa [Mimosa pudica (L.) D.C.] control in recreational turf on the Pacific Islands using ocean water. Weed Sci. Soc. Am. Abstr 39:18.Google Scholar
Wiecko, G. 2000. Usage of ocean water to control weeds in recreational turf of the Pacific Islands. Madison, WI: American Society of Agronomy Abstract. 124.Google Scholar
Wiecko, G. 2003. Ocean water as a substitute for postemergence herbicides in tropical turf. Weed Technol 17:788–791.Google Scholar
Wong, P. W. 1977. Roundup for weed control in mature rubber planting strips dominated by Ottochloa nodosa and Paspalum conjugatum. Planter Malays 53:118–124.Google Scholar