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Application of Fluazifop-P, Haloxyfop, and Quizalofop by Sprinkler Irrigation

Published online by Cambridge University Press:  12 June 2017

Charles B. Guy ,
Ronald E. Talbert ,
James A. Ferguson ,
David H. Johnson  and
Marilyn R. McClelland
Charles B. Guy
Affiliation:
Univ. Arkansas, Fayetteville, AR 72703
Ronald E. Talbert
Affiliation:
Univ. Arkansas, Fayetteville, AR 72703
James A. Ferguson
Affiliation:
Univ. Arkansas, Fayetteville, AR 72703
David H. Johnson
Affiliation:
Univ. Arkansas, Fayetteville, AR 72703
Marilyn R. McClelland
Affiliation:
Univ. Arkansas, Fayetteville, AR 72703
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Abstract

In field studies, sprinkler irrigation application of the butyl ester of fluazifop-P, the methyl ester of haloxyfop, and the ethyl ester of quizalofop controlled large crabgrass as well as conventional spray applications. In greenhouse investigations, root uptake of the herbicides from sprinkler irrigation applications injured large crabgrass more than root uptake from conventional applications, but large crabgrass injury from shoot uptake was equal with sprinkler irrigation and conventional applications. Droplets with dilute concentrations of herbicide and crop oil, simulating sprinkler irrigation, were more active when applied to the whorl or second leaf than to the first leaf of large crabgrass. An increase in concentration of nonemulsified oil in the treatment solution increased herbicide deposition and retention.

Keywords

Fluazifop-P, (R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidhaloxyfop, 2-[4-[[3-chloro-5-trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidquizalofop, (±)-2-[4-[(6-chloro-2-quinoxalinyl)oxy)phenoxy]propanoic acidlarge crabgrass, Digitaria sanguinalis (L.) Scop. ♯3 DIGSAChemigationapplication sitedroplet compositionDigitaria sanguinalisDIGSA
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 37 , Issue 4 , July 1989 , pp. 585 - 590
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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