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Quackgrass (Agropyron repens) Control in Potatoes (Solanum tuberosum) by Sethoxydim

Published online by Cambridge University Press:  12 June 2017

Jerry A. Ivany
Jerry A. Ivany*
Affiliation:
Agriculture Canada, Charlottetown, Prince Edward Island, Canada. C1A 7M8
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Abstract

In greenhouse and field studies, sethoxydim {2-[1-(ethoxyimino)-butyl]-5-(2-ethylthio)-propyl]-3-hydroxy-2-cyclohexen-1-one} provided good control of quackgrass [(Agropyron repens L. (Beauv.) ♯ AGRRE] in potato (Solanum tuberosum L. ‘Russet Burbank’). Level of control with sethoxydim at 0.6 kg ai/ha in the greenhouse was improved by the addition of a surfactant at 1.0% (v/v) of spray volume. Removal of quackgrass shoots at 6 or 24 h after treatment resulted in decreased control at application rates of 0.6, 1.0, and 1.6 kg ai/ha. Application of sethoxydim at 1.2 or 1.6 kg ai/ha in the field gave excellent control of quackgrass when applied at either the three- or six-leaf stage. Cultivation at 2 days after treatment did not adversely affect level of control obtained. Sethoxydim did not cause any adverse effect on potato yield, but delaying application until the six-leaf stage of quackgrass resulted in yield loss due to quackgrass competition.

Keywords

SurfactantcultivationAGRRE
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 32 , Issue 2 , March 1984 , pp. 194 - 197
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

Literature Cited

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