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Johnsongrass (Sorghum halepense) Control in Soybeans (Glycine max) with Postemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

Paul R. Vidrine
Paul R. Vidrine*
Affiliation:
Dean Lee Res. Stn., La. Agric. Exp. Stn., LSU Agric. Cent., 8105 E. Campus Ave., Alexandria, LA 71302-9608
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Abstract

Antagonism was evaluated among four grass and seven broadleaf herbicides applied postemergence for seedling and rhizome johnsongrass control in soybeans. Imazaquin and chlorimuron were most antagonistic to grass herbicides. Haloxyfop and quizalofop were least affected by the addition of broadleaf herbicides. Johnsongrass control was reduced 11 to 46% when grass herbicides were applied with broadleaf herbicides and were evaluated 3 and 12 weeks after treatment (WAT).

Keywords

Chlorimuron, 2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoic acidhaloxyfop, 2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidquizalofop, (±)-2-[4-(6-chloro-2-quinoxalinyl)oxy]phenoxy] propanoic acidjohnsongrass, Sorghum halepense (L.)Pers. ♯3 SORHAsoybeans, Glycine max (L.)Merr.Antagonismtank mixessoil moisturechlorimuronfluazifop-PhaloxyfopimazaquinquizalofopsethoxydimSORHA
Type
Research
Information
Weed Technology , Volume 3 , Issue 3 , September 1989 , pp. 455 - 458
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

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