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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 ,
Betsey M. O'Toole  and
John Andaloro
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
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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.

Keywords

Nicosulfuron, 3-pyridinecarboxamide, 2-(((4,6-dimethyoxy-pyrimidin-2-yl)aminocarbonyl))aminosulfonyl)))-N,N-dimethylcorn, Zea mays L. ‘Agway 584S’quackgrass, Elytrigia repens (L.) Nevski. ♯ AGRREApplication timingperennial grasspostemergenceAgropyron repensAGRRE
Type
Research
Information
Weed Technology , Volume 6 , Issue 1 , March 1992 , pp. 52 - 56
Copyright
Copyright © 1990 by the Weed Science Society of America 

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