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Response of Sethoxydim-Resistant Corn (Zea mays) Hybrids to Postemergence Graminicides

Published online by Cambridge University Press:  12 June 2017

Mark J. Vangessel ,
Quintin Johnson  and
Mark Isaacs
Mark J. Vangessel
Affiliation:
Department of Plant and Soil Science, University of Delaware, Georgetown, DE 19947
Quintin Johnson
Affiliation:
Department of Plant and Soil Science, University of Delaware, Georgetown, DE 19947
Mark Isaacs
Affiliation:
Research and Education Center, University of Delaware, Georgetown, DE 19947
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Abstract

This research was designed to determine if sethoxydim-resistant corn hybrids exhibited levels of cross-resistance to other acetyl-coenzyme A carboxylase (ACCase)-inhibiting herbicides. Three sethoxydim-resistant hybrids were tested in 1995 and four in 1996. The hybrids were treated with the 1 × (labeled use rate for annual grass control) and 4 × rate of clethodim, fenoxaprop-P plus fluazifop-P, fluazifop-P, quizalofop-P, and sethoxydim. At the 1 × rate, similar levels of corn safety were observed in both years with sethoxydim, quizalofop-P (except Asgrow RX620SR in 1995), and in 1996, fenoxaprop-P plus fluazifop-P. Corn treated with the 4 × rate of sethoxydim did not exhibit injury, while all other ACCase-inhibiting herbicides cause > 50% corn injury. Sethoxydim-resistant com hybrids used in this study did not consistently exhibit acceptable levels of cross-resistance to other ACCase-inhibiting herbicides. The use of clethodim will control volunteer sethoxydim-resistant corn in rotational crops.

Keywords

Clethodim, (E,E)-(±)-2-[1-[[(3-chloro-2-propenyl)oxy]imino]propyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onefenoxaprop, (±)-2-[4-[(6-chloro-2-benzoaxazolyl)oxy]phenoxy]propanoic acidfluazifop-P, (R)-2-[4-[[5-(trifluoromethyl)-2-pyrimidinyl]oxy] phenoxy]propanoic acidnicosulfuron, 2-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino] carbonyl]amino]sulfonyl]-N,N-dimethyl-3-pyridinecarboxamidequizalofop, (±)-2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoic acidsethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethyl thio)propyl]-3-hydroxy-2-cyclohexen-1-onecorn, Zea mays L., ‘Asgrow RX620SR,’ ‘Cargill 7800SR,’ ‘DeKalb 404SR,’ ‘DeKalb 592SR,’ ‘Pioneer 3394’Cross-resistancecross-toleranceherbicide-resistant cropsACCase, acetyl-coenzyme A carboxylasePOST, postemergence
Type
Research
Information
Weed Technology , Volume 11 , Issue 3 , September 1997 , pp. 598 - 601
Copyright
Copyright © 1997 by the Weed Science Society of America 

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References

Literature Cited

Dotray, P. A., Marshall, L. C., Parker, W. B., Wyse, D. L., Somers, D. A., and Gengenbach, B. G. 1993. Herbicide tolerance and weed control in sethoxydim-tolerant corn (Zea mays). Weed Sci. 41:213–217.CrossRefGoogle Scholar
Marshall, L. C., Somers, D. A., Dotray, P. A., Gengenbach, B. G., Wyse, D. L., and Gronwald, J. W. 1992. Allelic mutations in acetyl-coenzyme A carboxylase confer herbicide tolerance in maize. Theor. Appl. Genet. 83:435–442.Google Scholar
Parker, W. B., Marshall, L. C., Burton, J. D., Somers, D. A., Wyse, D. L., Gronwald, J. W., and Gengenbach, B. G. 1990. Dominant mutations causing alterations in acetyl-coenzyme A carboxylase confer tolerance to cyclohexanedione and aryloxyphenoxypropionate herbicides in maize. Proc. Natl. Acad. Sci. U.S.A. 87:7175–7179.Google Scholar
Wilcut, J. W., Coble, H. D., York, A. C., and Monks, D. W. 1996. The niche for herbicide-resistant crops in U.S. agriculture. In Duke, S. O., ed. Herbicide-resistant Crops: Agricultural, Environmental, Economic, Regulatory, and Technical Aspects. Boca Raton, FL: CRC Press. pp. 213–230.Google Scholar