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Weed Control in Winter Wheat (Triticum aestivum) with Chlorsulfuron and CGA 131036 and Comparison of Modes of Action

Published online by Cambridge University Press:  12 June 2017

Tracy E. Klingaman  and
Thomas F. Peeper
Tracy E. Klingaman
Affiliation:
Dep. Agron., Okla. State Univ., Stillwater, OK 74078
Thomas F. Peeper
Affiliation:
Dep. Agron., Okla. State Univ., Stillwater, OK 74078
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Abstract

In field experiments, chlorsulfuron and CGA 131036 did not injure winter wheat. Both herbicides applied postemergence at 9 and 10 g ai/ha completely controlled flixweed. CGA 131036 controlled cutleaf eveningprimrose 81%, and chlorsulfuron controlled 91%. At similar rates, CGA 131036 was also less effective than chlorsulfuron on henbit and Italian ryegrass. Both controlled wild buckwheat 77% when applied postemergence at 18 g/ha. Neither of the sulfonylurea herbicides controlled prostrate spurge or woolly croton as effectively as 2,4-D. In a bean root bioassay, root growth inhibition by both herbicides was partially alleviated by adding isoleucine and valine.

Keywords

2,4-D, (2,4-dichlorophenoxy)acetic acidbean, Phaseolus vulgaris L.winter wheat, Triticum aestivum L.flixweed, Descurainia sophia (L.)Webb. ex Prantl ♯3 DESSOcutleaf eveningprimrose, Oenothera laciniata Hill ♯ OEOLAhenbit, Lamium amplexicaule L. ♯ LAMAMwild buckwheat, Polygonum convolvulus L. ♯ POLCOItalian ryegrass, Lolium multiflorum Lam. ♯ LOLMUwoolly croton, Croton capitatus Michx. ♯ CVNCPprostrate spurge, Euphorbia humistrata Engelm. ex Gray ♯ EPHHTPhaseolus vulgarisDescurainia sophiaOenothera laciniataLamium amplexicaulePolygonum convolvulusLolium multiflorumCroton capitatusEuphorbia humistratabioassayLAMAMDESSOOEOLAPOLCOLOLMUCVNCPEPHHT
Type
Research
Information
Weed Technology , Volume 3 , Issue 3 , September 1989 , pp. 490 - 496
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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