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Phytotoxicity of Chlorimuron and Tank Mixtures on Peanut (Arachis hypogaea)

Published online by Cambridge University Press:  12 June 2017

W. Carroll Johnson III
Affiliation:
USDA-ARS, Tifton, GA 31793-0748
Benjamin G. Mullinix Jr.
Affiliation:
Coastal Plain Exp. Stn., Tifton, GA 31793-0748
Steven M. Brown
Affiliation:
Coastal Plain Exp. Stn., Tifton, GA 31793-0748

Abstract

Studies were conducted in 1989 and 1990 to determine the phytotoxicity of chlorimuron and tank mixtures on ‘Florunner’ peanut. Chlorimuron plus a petroleum oil adjuvant or 2,4-DB was more phytotoxic (P = 0.05) than chlorimuron plus a nonionic surfactant, based on stunting and chlorosis. Chlorimuron mixed with chlorothalonil, chlorothalonil plus sulfur, or esfenvalerate were no more phytotoxic than the standard. Adding sulfur or nonionic surfactant to chlorimuron plus chlorothalonil did not affect phytoxicity. Sequential applications of chlorimuron and 2,4-DB did not completely negate the phytotoxicity of the tank mixture. Despite differences in phytotoxicity, yields were not reduced.

Type
Research
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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