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Effects of Nicosulfuron on Quackgrass (Elytrigia repens) Control in Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Prasanta C. Bhowmik
Affiliation:
Dep. Plant and Soil Sci., Univ. Mass., Amherst, MA 01003
Betsey M. O'Toole
Affiliation:
Dep. Plant and Soil Sci., Univ. Mass., Amherst, MA 01003
John Andaloro
Affiliation:
E. I. Du Pont De Nemours and Co., Wilmington, DE 19898

Abstract

Four field experiments were conducted during 1988 and 1989 to determine the effects of POST application of nicosulfuron on quackgrass control in conventional field corn. A single application of nicosulfuron at 35 to 70 g ha–1 applied to four- to six-leaf quackgrass controlled over 90% of quackgrass five weeks after treatment. Nicosulfuron at 35 g ha–1 applied at the one- to three-leaf stage was not as effective as the same rate applied at the four- to six-leaf stage. When nicosulfuron at 35 g ha–1 was applied to four- to six-leaf quackgrass, over 80% of the quackgrass regrowth was controlled one year later. Nicosulfuron did not injure ‘Agway 584S’ corn at the highest rate (140 g ha–1) tested and did not reduce silage or grain yield.

Type
Research
Copyright
Copyright © 1990 by the Weed Science Society of America 

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Effects of Nicosulfuron on Quackgrass (Elytrigia repens) Control in Corn (Zea mays)
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