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Control of Annual Weeds with Glyphosate

Published online by Cambridge University Press:  12 June 2017

Ronald F. Krausz
Affiliation:
Dep. Plant Soil Sci., Southern Illinois Univ., Carbondale, IL 62901
George Kapusta
Affiliation:
Dep. Plant Soil Sci., Southern Illinois Univ., Carbondale, IL 62901
Joseph L. Matthews
Affiliation:
Dep. Plant Soil Sci., Southern Illinois Univ., Carbondale, IL 62901

Abstract

Field experiments were conducted from 1993 to 1995 to evaluate control of annual weeds with glyphosate applied at rates of 560 to 2800 g ai/ha in spray volumes of 93 and 187 L/ha. Glyphosate controlled 100% of giant foxtail, fall panicum, redroot pigweed, and velvetleaf (in 1993) regardless of rate, spray volume, or application timing. Ivyleaf morningglory, velvetleaf, and common lambsquarters control was greater with glyphosate applied early POST than late POST. Ivyleaf morningglory, velvetleaf, and common lambsquarters control increased as glyphosate rate increased with both spray volumes. Velvetleaf control with glyphosate applied late POST was greater with glyphosate in 187 L/ha water compared with 93 L/ha water.

Type
Research
Copyright
Copyright © 1996 by the Weed Science Society of America 

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