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Lactofen Increases Glyphosate-Stimulated Shikimate Production in Little Mallow (Malva parviflora)

Published online by Cambridge University Press:  12 June 2017

Barbara H. Wells  and
Arnold P. Appleby
Barbara H. Wells
Affiliation:
Crop Sci. Dep., Oregon State Univ., Corvallis, OR 97331-3002
Arnold P. Appleby
Affiliation:
Crop Sci. Dep., Oregon State Univ., Corvallis, OR 97331-3002
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Abstract

Low rates of diphenylether herbicides were previously shown to increase efficacy of glyphosate. Experiments were conducted to determine effect of lactofen on uptake of glyphosate and movement into tissues distal from the treatment area as measured by shikimate accumulation. As expected, glyphosate caused shikimate to accumulate, and sublethal rates of lactofen increased this effect. Cuticle abrasion had no effect on activity of glyphosate, alone or with lactofen, suggesting that the influence of lactofen was not in aiding penetration into the leaf.

Keywords

Lactofen, (±)-2-ethoxy-1-methyl-2-oxoethyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoateglyphosate, N-phosphonomethyl)-glycinelittle mallow Malva parviflora L #3 MALPAHerbicide uptakeMALPA

Information

Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 40 , Issue 2 , June 1992 , pp. 171 - 173
Copyright
Copyright © 1992 by the Weed Science Society of America 

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