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Effect of Growth Stage on Trifloxysulfuron and Glyphosate Efficacy in Twelve Weed Species of Citrus Groves

Published online by Cambridge University Press:  20 January 2017

Samunder Singh*
Affiliation:
Citrus Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL 33850-2299
Megh Singh
Affiliation:
Citrus Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL 33850-2299
*
Corresponding author's E-mail: samunder@crec.ifas.ufl.edu

Abstract

Efficacy of trifloxysulfuron with and without surfactant was evaluated against balsamapple, cat's claw vine, Florida beggarweed, hairy beggarticks, ivyleaf morningglory, johnsongrass, prickly sida, redroot pigweed, sicklepod, strangler vine, tall morningglory, and yellow nutsedge at 21, 42, and 63 g ai/ha applied at the four- or six-leaf stages and compared with glyphosate at 280, 560, and 840 g ae/ha. Delayed application from the four- to six-leaf stage significantly reduced trifloxysulfuron efficacy; reduction was less with glyphosate. Trifloxysulfuron plus 0.25% X-77 was more effective on the four-leaf stage than on the six-leaf stage plants of redroot pigweed, johnsongrass, hairy beggarticks, strangler vine, and prickly sida; effect was similar on yellow nutsedge, sicklepod, Florida beggarweed, balsamapple, ivyleaf morningglory, and tall morningglory. Trifloxysulfuron at 63 g/ha plus surfactant reduced the fresh weight of all test plants more than 80% compared with control, except prickly sida, strangler vine, and cat's claw vine. Glyphosate was less effective than trifloxysulfuron plus surfactant against tall morningglory, sicklepod, ivyleaf morningglory, and yellow nutsedge but was significantly better against balsamapple, prickly sida, and cat's claw vine. None of the herbicides provided satisfactory control of cat's claw vine, strangler vine, and prickly sida.

Type
Research
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Askew, S. D. and Wilcut, J. W. 2002. Absorption, translocation, and metabolism of foliar-applied CGA-362622 in cotton, peanut, and selected weeds. Weed Sci. 50:293298.CrossRefGoogle Scholar
Barber, L. T., Reynolds, D. B., Sanders, J. C., Wilson, D. G., Buehring, N. W., and Bloodworth, K. M. 2002. Weed control with CGA-362622 in roundup ready and BXN cotton systems. Proc. South. Weed Sci. Soc 55:140.Google Scholar
Brecke, B. J., Bridges, D. C., and Grey, T. L. 2001. Postemergence weed control in cotton with CGA-362622. Proc. South. Weed Sci. Soc 54:1.Google Scholar
Burke, J. C., Wilcut, J. W., and Porterfield, D. 2002. CGA-362622 antagonizes annual grass control with clethodim. Weed Technol. 16:749754.Google Scholar
Carey, J. B., Penner, D., and Kells, J. J. 1997. Physiological basis for nicosulfuron and primusulfuron selectivity in five plant species. Weed Sci. 45:2230.Google Scholar
Culpepper, A. S. and York, A. C. 2001. Comparison of CGA-362622, pyrithiobac and glyphosate in glyphosate-resistant cotton (Gossipium hirsutum). Proc. South. Weed Sci. Soc 54:2.Google Scholar
Fisher, L. R., Clewis, S. B., Porterfield, C. D., Smith, W. D., and Wilcut, J. W. 2002. Tobacco response to CGA-362622. Proc. South. Weed Sci. Soc 55:4344.Google Scholar
Lovelace, M. L., Talbert, R. E., Buehring, N. W., and Scherder, E. F. 2001. Weed control spectrum of new postemergence rice herbicides. Proc. South. Weed Sci. Soc 54:45.Google Scholar
Mesch, P., Howard, S., Ó-Connell, P., Jacob, H. S., Dodd, J., and Moore, J. H. 2002. Trifloxysulfuron-sodium: a new postemergence herbicide for use in Australian cotton and sugarcane. Proc. Aust. Weeds conf. 13:345– 347.Google Scholar
Porterfield, D. and Wilcut, J. W. 2003. Peanut (Arachis hypogea L.) response to residual and in-season treatments of CGA-362622. Weed Technol. 17:441445.Google Scholar
Porterfield, D., Wilcut, J. W., and Askew, S. D. 2002a. Weed management with CGA-362622, fluometuron, and prometryne in cotton. Weed Sci. 50:642647.Google Scholar
Porterfield, D., Wilcut, J. W., Clewis, S. B., and Edmisten, K. L. 2002b. Weed free yield response of seven cotton (Gossypium hirsutum) cultivars to CGA-362622 postemergence. Weed Technol. 16:180183.Google Scholar
Rawls, E. K., Wells, J. W., Hutdetz, M., Jain, R., and Ulloa, M. F. 2000. CGA-362622: a new herbicide for weed control in sugarcane. Proc. South. Weed Sci. Soc 53:163.Google Scholar
Richardson, R. J., Hatzois, K. K., and Wilson, H. P. 2003. Absorption, translocation and metabolism of CGA-362622 in cotton and two weeds. Weed Sci. 51:157162.Google Scholar
Singh, M. and Singh, S. 2004. Tolerance of accentuated rates of trifloxysulfuron by young citrus and weed control efficacy. Proc. South. Weed Sci. Soc 57:248.Google Scholar
Troxler, S. C., Burke, I. C., Wilcut, J. W., Smith, W. D., and Burton, J. 2003. Absorption, translocation, and metabolism of foliar-applied CGA-362622 in purple and yellow nutsedge (Cyperus rotundus and C. esculentus). Weed Sci. 51:1318.Google Scholar
Wells, J. W., Holloway, J. C. Jr., Rawls, E. K., Forster, P., Dunne, C., Porterfield, D., and Allard, J. 2001. CGA-362622 use in cotton and sugarcane. Proc. South. Weed Sci. Soc 54:141.Google Scholar