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

Published online by Cambridge University Press:  12 June 2017

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

In greenhouse and field studies, fluazifop {(±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy] propanoic acid} controlled quackgrass [Agropyron repens (Beauv.) # AGRRE] in potato (Solanum tuberosum L. ‘Russet Burbank’). Quackgrass control with fluazifop at 0.25 and 0.5 kg ai/ha in the greenhouse was greatest with application at the two-leaf stage compared with the four-and six-leaf stages. Control was not affected by rhizome length, with similar control obtained of plants grown from 2- and 10-node rhizome pieces. Removal of quackgrass shoots at 6 or 24 h after treatment resulted in decreased control at application rates of 0.25 and 0.5 kg/ha. Fluazifop at 0.5 kg/ha controlled quackgrass treated at the four-leaf stage. The active enantiomer of fluazifop at half the rate of the racemic mixture controlled the quackgrass to the same extent. Fluazifop did not affect potato yield.

Keywords

Nonylphenoxy polyethoxy ethanolstage of growthrhizome lengthshoot removalAgropyron repensAGRRE
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 36 , Issue 3 , May 1988 , pp. 363 - 366
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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