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Dew and Spray Volume Effect on Glyphosate Efficacy

Published online by Cambridge University Press:  20 January 2017

M. Kogan  and
M. Zúñiga
M. Kogan*
Affiliation:
Pontificia Universidad Católica de Chile, School of Agriculture and Forestry. Casilla 306, Correo 22 Santiago, Chile
M. Zúñiga
Affiliation:
Pontificia Universidad Católica de Chile, School of Agriculture and Forestry. Casilla 306, Correo 22 Santiago, Chile
*
Corresponding author's E-mail: mkogan@puc.cl.
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Abstract

The influence of three simulated dew levels and 150, 300, and 450 L/ha spray volume on glyphosate control of oat plants was determined from pot experiments. Results showed that the effect of dew level on glyphosate efficacy was related to application volume. Glyphosate efficacy at the low and medium application volume (150 and 300 L/ha) was not affected by dew level. However, glyphosate efficacy decreased when applied at the high spray volume (450 L/ha), regardless of dew level. However, high dew level reduced efficacy only when glyphosate was applied at 450 L/ha.

Keywords

Glyphosateoat, Avena sativa L.Application volumeglyphosate activityfoliage water retentionfoliage free waterDAE, days after emergenceHDA, homogeneous dew area
Type
Notes
Information
Weed Technology , Volume 15 , Issue 3 , September 2001 , pp. 590 - 593
Copyright
Copyright © Weed Science Society of America 

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