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Yellow Nutsedge (Cyperus esculentus) Control POST With Acetolactate Synthase-Inhibiting Herbicides

Published online by Cambridge University Press:  12 June 2017

John A. Ackley
Affiliation:
Eastern Shore Res. and Ext. Ctr., Virginia Polytechnic Inst. and State Univ., Painter, VA 23420-2827
Henry P. Wilson
Affiliation:
Eastern Shore Res. and Ext. Ctr., Virginia Polytechnic Inst. and State Univ., Painter, VA 23420-2827
Thomas E. Hines
Affiliation:
Eastern Shore Res. and Ext. Ctr., Virginia Polytechnic Inst. and State Univ., Painter, VA 23420-2827

Abstract

Efficacy of several acetolactate synthase (ALS)-inhibiting herbicides was evaluated for yellow nutsedge control over a 3-yr period on a State sandy loam and in the greenhouse. Herbicides were applied POST to yellow nutsedge at actual or anticipated commercial rates. Yellow nutsedge control was above 77% from MON 12000 and chlorimuron. Control ranged from 41 to 89% from primisulfuron, pyrithiobac, and rimsulfuron. Control from nicosulfuron and imazethapyr was 58% or less while thifensulfuron and CGA-152005 had almost no activity on yellow nutsedge. In greenhouse studies, MON 12000 controlled yellow nutsedge better than did chlorimuron, and imazethapyr gave better control than in the field.

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

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