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Influence of Adjuvants on Interactions of Sethoxydim with Selected Broadleaf Herbicides Used in Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Christopher B. Corkern ,
David L. Jordan ,
James L. Griffin ,
P. Roy Vidrine ,
Bill J. Williams  and
Daniel B. Reynolds
Christopher B. Corkern
Affiliation:
Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, 302 Life Sciences Building, Baton Rouge, LA 70803
David L. Jordan*
Affiliation:
Northeast Research Station, Louisiana Slate University Agricultural Center, P.O. Box 438, St. Joseph, LA 71366
James L. Griffin
Affiliation:
Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, LA
P. Roy Vidrine
Affiliation:
Dean Lee Research Station, Louisiana State University Agricultural Center, 8105 East Campus Drive, Alexandria, LA 71302
Bill J. Williams
Affiliation:
Northeast Research Station, Louisiana State University Agricultural Center, St. Joseph, LA
Daniel B. Reynolds
Affiliation:
Mississippi State University, 117 Dorman Hall, Box 9555, Mississippi State, MS 39762
*
Corresponding author's E-mail: david_jordan@ncsu.edu.
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Abstract

Field experiments were conducted during 1996 and 1998 to determine the effect of atrazine, bentazon, atrazine + bentazon, the amine salt of 2,4-D, and bromoxynil on broadleaf signalgrass and barnyardgrass control when applied in mixture with sethoxydim. Herbicide combinations were applied with crop oil concentrate, crop oil concentrate + ammonium sulfate, or BCH 815. Bentazon and atrazine + bentazon reduced broadleaf signalgrass and barnyardgrass control by sethoxydim. Bromoxynil reduced barnyardgrass control but had no affect on broadleaf signalgrass control. Including ammonium sulfate with crop oil concentrate or substituting BCH 815 for crop oil concentrate increased barnyardgrass and broadleaf signalgrass control by sethoxydim when applied with bentazon. Ammonium sulfate and BCH 815 increased barnyardgrass control when sethoxydim was applied with bromoxynil but did not affect control when sethoxydim was applied with atrazine + bentazon. Atrazine and the ammonium salt of 2,4-D did not reduce barnyardgrass and broadleaf signalgrass control by sethoxydim regardless of adjuvant.

Keywords

Atrazine, 6-chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diaminebentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidebromoxynil, 3,5-dibromo-4-hydroxybenzonitrilesethoxydim, 2-[1-(ethoxyimino)butyl]-5-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onc2,4-D, (2,4-dichlorophenoxy)acetic acidbarnyardgrass, Echinochloa crus-galli (L.) Beauv. ♯ ECHCGbroadleaf signalgrass, Brachiaria platyphylla (Griseb.) Nash ♯, BRAPPAntagonismCOC, crop oil concentratePOST, postemergence
Type
Research
Information
Weed Technology , Volume 13 , Issue 4 , December 1999 , pp. 821 - 824
Copyright
Copyright © 1999 by the Weed Science Society of America 

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Footnotes

Current address of second author. Crop Science Department, Box 7620, North Carolina State University, Raleigh, NC 27695.

References

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