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Bromoxynil Antagonizes Johnsongrass (Sorghum halepense) Control with Graminicides

Published online by Cambridge University Press:  12 June 2017

Chris B. Corkern
Affiliation:
Department of Plant Pathology and Crop Physiology, Baton Rouge, LA 70803
Daniel B. Reynolds
Affiliation:
Northeast Research Station, Louisiana State University Agricultural Center, P.O. Box 438, St. Joseph, LA 71366
P. Roy Vidrine
Affiliation:
Dean Lee Research Station, Louisiana State University Agricultural Center, 8105 East Campus Drive, Alexandria, LA 71302
James L. Griffin
Affiliation:
Department of Plant Pathology and Crop Physiology, Baton Rouge, LA 70803
David L. Jordan
Affiliation:
Northeast Research Station, Louisiana State University Agricultural Center, P.O. Box 438, St. Joseph, LA 71366

Abstract

Field studies were conducted over 2 yr to evaluate rhizome johnsongrass control with tank mixtures and sequential applications of bromoxynil at 1.7 kg ai/ha and the graminicides clethodim, fluazifop-P, and quizalofop-P. When compared with the graminicide alone, bromoxynil reduced johnsongrass control 28 days after treatment (DAT) 20, 36, and 55% when applied in combination with clethodim, fluazifop-P, and quizalofop-P, respectively. Application of bromoxynil 7, 3, and 1 d before or 1, 3, and 7 d after all graminicides reduced antagonism when compared with the bromoxynil plus graminicide mixtures. Based on johnsongrass control 28 DAT, antagonism was precluded when bromoxynil was applied 3 d before clethodim and 7 d before fluazifop-P and quizalofop-P. Application of bromoxynil 3 and 7 d after quizalofop-P and 7 d after clethodim also precluded antagonism. The antagonistic tank mixtures of bromoxynil and graminicides reduced cotton yield 17% because of reduced johnsongrass control compared with graminicides alone. A 3-d or greater application interval between bromoxynil and the graminicides was necessary to maximize cotton yield.

Type
Research
Copyright
Copyright © 1998 by the Weed Science Society of America 

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References

Literature Cited

Bridges, D. C. and Chandler, J. M. 1987. Influence of johnsongrass (Sorghum halepense) density and period of competition on cotton yield. Weed Sci. 35:6367.Google Scholar
Brown, C. L., Bradley, J. F., Brawley, P. A., and Hayes, R. M. 1994. Systems for cocklebur (Xanthium strumarium) control in bromoxynil resistant cotton. Proc. South. Weed Sci. Soc. 47:230.Google Scholar
Byrd, J. D. Jr., and York, A. C. 1987. Interaction of fluometuron and MSMA with sethoxydim and fluazifop. Weed Sci. 35:270276.CrossRefGoogle Scholar
Carter, C. H. and Keeley, P. E. 1987. Selective control of johnsongrass (Sorghum halepense) in cotton (Gossypium hirsutum) with foliar herbicides. Weed Sci. 35:418421.CrossRefGoogle Scholar
Crawford, S. H. and Leake, K. D. 1993. Broadleaf weed control in genetically-altered cotton utilizing postemergence over-the-top applications of bromoxynil. Proc. South. Weed Sci. Soc. 46:79.Google Scholar
Croon, K. A. and Merkle, M. G. 1988. Effects of bentazon, imazaquin, or chlorimuron on haloxyfop or fluazifop-P efficacy. Weed Technol. 2:3640.Google Scholar
Godley, J. L. and Kitchen, L. M. 1986. Interaction of acifluorfen with fluazifop for annual grass control. Weed Sci. 34:936941.Google Scholar
Grey, T. L., Wilcut, J. W., and Richburg, J. S. III. 1993. Buctril efficacy on annual broadleaf weeds and mixtures with graminicides for grass control in Georgia cotton. In Herber, D. J. and Richter, D. A., eds. Proceedings of the Beltwide Cotton Conference. New Orleans, LA. January 10–14, 1993. Memphis, TN: National Cotton Council of America. p. 1530.Google Scholar
Haley, P. W., Holshouser, D. L., and Chandler, J. M. 1994. Buctril control of seven morningglory species. Proc. South. Weed Sci. Soc. 46:84.Google Scholar
Holshouser, D. L. and Coble, H. D. 1990. Compatibility of sethoxydim with five postemergence broadleaf herbicides. Weed Technol. 4:128133.CrossRefGoogle Scholar
Jordan, D. L., Smith, M. C., McClelland, M. R., and Frans, R. E. 1993. Weed control with bromoxynil applied alone and with graminicides. Weed Technol. 7:835839.CrossRefGoogle Scholar
Keeley, P. E. and Thullen, R. J. 1981. Control and competitiveness of johnsongrass (Sorghum halepense) in cotton (Gossypium hirsutum). Weed Sci. 29:356359.Google Scholar
Keeley, P. E. and Thullen, R. J. 1989. Growth and interaction of johnsongrass (Sorghum halepense) with cotton (Gossypium hirsutum). Weed Sci. 37:339344.Google Scholar
Keeley, P. E., Thullen, R. J., and Carter, C. H. 1987. Repeated annual applications of herbicides for control of rhizome johnsongrass (Sorghum halepense) in cotton (Gossypium hirsutum). Weed Sci. 35:7580.CrossRefGoogle Scholar
McLaughlin, R. D. 1992. Reviews of the 1991 field trial results on bromoxynil-tolerant cotton. In Herber, D. J. and Richter, D. A., eds. Proceedings of the Beltwide Cotton Conference. Nashville, TN. January 7–10, 1991. Memphis, TN: National Cotton Council of America. p. 1316.Google Scholar
Rhodes, G. N. Jr., and Coble, H. D. 1984. Influence of application variables on antagonism between sethoxydim and bentazon. Weed Sci. 32:436441.Google Scholar
Richard, E. P. Jr. 1990. Timing effects of johnsongrass (Sorghum halepense) control with asulam in sugarcane (Saccharum sp.). Weed Technol. 4:8186.Google Scholar
Stalker, D. M., McBride, K. E., and Malyj, L. D. 1988. Bromoxynil-specific bacterial nitrilase that confers herbicide resistance. In Genetic Improvements of Agriculturally Important Crops. Davis, CA: Cold Spring Harbor Laboratory. pp. 3538.Google Scholar
Vidrine, P. R. 1989. Johnsongrass (Sorghum halepense) control in soybeans (Glycine max) with postemergence herbicides. Weed Technol. 3:455458.Google Scholar
Williams, C. S. and Hayes, R. M. 1984. Johnsongrass (Sorghum halepense) competition in soybeans (Glycine max). Weed Sci. 32:498501.Google Scholar