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Economic Evaluations of Imazethapyr Rates and Timings on Rice

Published online by Cambridge University Press:  20 January 2017

Tyler P. Carlson ,
Eric P. Webster ,
Michael E. Salassi ,
Jason A. Bond ,
Justin B. Hensley  and
David C. Blouin
Tyler P. Carlson
Affiliation:
School of Plant, Environmental, and Soil Science, Louisiana State University Agricultural Center, 104 Sturgis Hall, Baton Rouge, LA 70803
Eric P. Webster*
Affiliation:
School of Plant, Environmental, and Soil Science, Louisiana State University Agricultural Center, 104 Sturgis Hall, Baton Rouge, LA 70803
Michael E. Salassi
Affiliation:
Department of Agricultural Economics and Agribusiness, Louisiana State University Agricultural Center, 101 Agricultural Administration Building, Baton Rouge, LA 70803
Jason A. Bond
Affiliation:
Delta Research and Extension Center, Mississippi Agricultural and Forestry Experiment Station, Stoneville, MS
Justin B. Hensley
Affiliation:
School of Plant, Environmental, and Soil Science, Louisiana State University Agricultural Center, 104 Sturgis Hall, Baton Rouge, LA 70803
David C. Blouin
Affiliation:
Department of Experimental Statistics, Louisiana State University Agricultural Center, 45 Agricultural Administration Building, Baton Rouge, LA 70803
*
Corresponding author's E-mail: ewebster@agcenter.lsu.edu
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Abstract

Field studies were conducted in Crowley, LA, and Stoneville, MS, in drill-seeded rice to evaluate economical returns of weed control with imazethapyr. Red rice and barnyardgrass control was evaluated with imazethapyr alone at various rates and application timings. Imazethapyr, averaged across rate, controlled red rice 89% and barnyardgrass 90% when the initial application of imazethapyr was applied at emergence followed by a second application of imazethapyr 2 wk later. No difference in red rice and barnyardgrass control was observed with imazethapyr, averaged across timing. Yield and economical returns were maximized when the initial application of imazethapyr was applied at rice emergence followed by a second application of imazethapyr 2 wk later.

Se realizaron estudios de campo en Crowley, Lousiana y Stoneville, Mississippi, para evaluar los beneficios económicos del control de malezas con imazethapyr en el cultivo del arroz sembrado a chorro corrido. Se evaluó el control de Oryza sativa y Echinochloa crus-galli con imazethapyr solo, a varias dosis y tiempos de aplicación. El imazethapyr, promediado de entre todas las dosis, controló O. sativa 89% y E. crus-galli 90% cuando la aplicación inicial del herbicida fue a la emergencia, seguida de una segunda aplicación dos semanas más tarde. No se observaron diferencias en el control de O. sativa y E. crus-galli con imazethapyr promediado entre todos los tiempos. El rendimiento y los beneficios económicos del arroz se maximizaron cuando la aplicación inicial de imazethapyr al cultivo fue a la emergencia del arroz, seguida por una segunda aplicación del mismo herbicida dos semanas después.

Keywords

Imazethapyrbarnyardgrass, Echinochloa crus-galli (L.) Beauvred rice, Oryza sativa L.rice, Oryza sativa L.Clearfield riceeconomicseconomic returnsherbicideweed control
Type
Weed Management—Major Crops
Information
Weed Technology , Volume 26 , Issue 1 , March 2012 , pp. 24 - 28
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Askew, S. D., Street, J. E., and Shaw, D. R. 1998. Herbicide programs for red rice (Oryza sativa) control in soybean (Glycine max). Weed Technol. 12:103–107.Google Scholar
Cantwell, J. R., Liebl, R. A., and Slife, F. W. 1989. Imazethapyr for weed control in soybean (Glycine max). Weed Technol. 3:596–601.CrossRefGoogle Scholar
Carlson, T. P., Webster, E. P., Salassi, M. E., Hensley, J. B., and Blouin, D. C. 2011. Imazethapyr plus propanil programs in imidazolinone-resistant rice. Weed Technol. 25:204–211.CrossRefGoogle Scholar
Carmer, S. G., Nyuist, W. E., and Walker, W. M. 1989. Least significant differences for combined analysis of experiments with two of three-factor treatment designs. Agron. J. 81:665–672.CrossRefGoogle Scholar
Craigmiles, J. P. 1978. Introduction. Pages 5–6 in Eastin, E. F., ed. Red Rice Research and Control. Texas Agricultural Experiment Station Bulletin 1270. College Station, TX Texas Agricultural Experiment Station.Google Scholar
Croughan, T. P. 1994. Application of tissue culture techniques to development of herbicide resistant rice. Louisiana Agric. 37:25–26.Google Scholar
Dowler, C. C. Weed survey—southern states. Proc. Weed Sci. Soc. 1994. 47:279–299.Google Scholar
Grichar, W. J. 1994. Spiny amaranth (Amaranthus spinosus L.) control in peanut (Arachis hypogaea L.). Weed Technol. 8:199–202.Google Scholar
Hager, A. G., Wax, L. M., Bollero, G. A., and Stroller, E. W. 2003. Influence of diphenylether herbicide application rate and timing on common waterhemp (Amaranthus rudis) control in soybean (Glycine max). Weed Technol. 17:14–20.Google Scholar
Hart, R. G., Lignowski, E. M., and Taylor, F. R. 1991. Imazethapyr herbicide. Pages 247–256 in Shaner, D. L. and O'Conner, S. L., eds. The Imidazolinone Herbicides. Boca Raton, FL CRC Press.Google Scholar
Khodayari, K., Smith, R. J. Jr., and Black, H. L. 1987. Red rice (Oryza sativa) control with herbicide treatments in soybeans (Glycine max). Weed Sci. 35:127–129.Google Scholar
Klingaman, T. E., King, C. A., and Oliver, L. R. 1992. Effect of application rate, weed species and weed stage of growth on imazethapyr activity. Weed Sci. 40:227–232.CrossRefGoogle Scholar
Masson, J. A. and Webster, E. P. 2001. Use of imazethapyr in water-seeded imidazolinone-tolerant rice (Oryza sativa). Weed Technol. 15:103–106.CrossRefGoogle Scholar
Masson, J. A., Webster, E. P., and Williams, B. J. 2001. Flood depth, application timing, and imazethapyr activity in imidazolinone-tolerant rice (Oryza sativa). Weed Technol. 15:315–319.Google Scholar
Pellerin, K. J. and Webster, E. P. 2004. Imazethapyr at different rates and timing in drill- and water-seeded imidazolinone-tolerant rice. Weed Technol. 18:223–227.CrossRefGoogle Scholar
Pellerin, K. J., Webster, E. P., Zhang, W., and Blouin, D. C. 2004. Potential use of imazethapyr mixtures in drill-seeded imidazolinone-resistant rice. Weed Technol. 18:1037–1042.CrossRefGoogle Scholar
Richburg, J. S. III, Wilcut, J. W., and Wehtje, G. R. 1993. Toxicity of imazethapyr to purple (Cyperus rotundus) and yellow nutsedges (Cyperus esculentus). Weed Technol. 7:900–905.Google Scholar
[SAS] Statistical Analysis System. 2003. Version 9.1. Cary, NC Statistical Analysis Systems Institute.Google Scholar
Smith, R. J. Jr. 1981. Control of red rice (Oryza sativa) in water-seeded rice (O. sativa). Weed Sci. 29:663–666.Google Scholar
Smith, R. J. Jr. 1988. Weed thresholds in southern U.S. rice, Oryza sativa . Weed Technol. 2:232–241.Google Scholar
Stauber, L. G., Smith, R. J. Jr., and Talbert, R. E. 1991. Density and spatial interference of barnyardgrass (Echinochloa crus-galli) with rice (Oryza sativa). Weed Sci. 39:163–168.CrossRefGoogle Scholar
Steele, G. L., Chandler, J. M., and McCauley, G. N. 2002. Control of red rice (Oryza sativa) in imidazolinone tolerant rice (O. sativa). Weed Technol. 16:627–630.Google Scholar
Stidham, M. A. and Singh, B. K. 1991. Imidazolinone-acetohydroxyacid synthase interactions. Pages 71–90 in Shaner, D. L. and O'Conner, S. L., eds. The Imidazolinone Herbicides. Boca Raton, FL CRC.Google Scholar
Stougaard, R. N., Shea, P. J., and Martin, A. R. 1990. Effect of soil type and pH on adsorption, mobility, and efficacy of imazaquin and imazethapyr. Weed Sci. 38:67–73.Google Scholar
[USDA] U.S. Department of Agriculture. 2009. World Agricultural Supply and Demand Estimates. http://www.usda.gov/oce/commodity/wasde/index.htm. Accessed: February 16, 2011.Google Scholar
Webster, E. P. and Levy, R. 2009. Weed management. Pages 46–71 in Saichuk, J., ed. Louisiana Rice Production Handbook. Publication 2321. Baton Rouge, LA Louisiana State University Agricultural Center.Google Scholar
Webster, E. P. and Masson, J. A. 2001. Acetolactate synthase-inhibiting herbicides on imidazolinone-tolerant rice. Weed Sci. 49:652–657.CrossRefGoogle Scholar
Webster, T. M. 2004. Weed survey—southern states. Proc. South. Weed Sci. Soc. 57:404–426.Google Scholar
Zhang, W., Webster, E. P., and Selim, H. M. 2001. Effects of soil moisture on efficacy of imazethapyr in greenhouse. Weed Technol. 15:355–359.Google Scholar