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Effects of Various Adjuvants on Sethoxydim Activity

Published online by Cambridge University Press:  12 June 2017

K. Neil Harker
K. Neil Harker*
Affiliation:
Agric. Can. Res. Stn., Bag Service 5000, Lacombe, AB, Canada T0C 1S0
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Abstract

Field experiments were conducted at the Lacombe Research Station from 1989 to 1991 to determine the influence of various adjuvants on sethoxydim activity. In all experiments sethoxydim was applied at 100 g ai ha-1 to green foxtail, wheat, wild oat, and barley seeded in a canola crop. Of the four grass species, green foxtail was the most susceptible and barley was the least susceptible to sethoxydim. CC 16255 was the most effective adjuvant followed by either of two sources of ammonium sulphate (liquid or granular) and then Merge. Liquid and granular forms of ammonium sulphate were equally effective in enhancing sethoxydim activity. Several other adjuvants, including Enhance, Savol, and XE 1167, were moderately effective in the enhancement of sethoxydim activity. Adding Canplus 411 to Merge was not usually beneficial, but additions of Canplus 411 to Enhance often increased sethoxydim activity compared with sethoxydim and Enhance alone. Agral 90 and LI-700 were of little or no value as adjuvants with sethoxydim.

Keywords

Sethoxydim, {2-[1(ethoxyimino)-butyl]-5-[2-(ethylthio)-propyl]-3-hydroxy-2-cyclohexen-1-one}green foxtail, Setaria viridis (L.) Beauv. # SETVIwild oat, Avena fatua L. # AVEFAbarley, Hordeum vulgare L.canola, Brassica campestris L.wheat, Triticum aestivum L.AdditivessurfactantsBAS 9052Avena fatuaHordeum vulgareSetaria viridisTriticum aestivumAVEFASETVI
Type
Research
Information
Weed Technology , Volume 6 , Issue 4 , December 1992 , pp. 865 - 870
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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