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Evaluation of Registered Herbicides for Cheat (Bromus secalinus) Control in Winter Wheat (Triticum aestivum)

Published online by Cambridge University Press:  12 June 2017

Jeffrey A. Koscelny
Affiliation:
Oklahoma State Univ., Stillwater, OK 74078
Thomas F. Peeper
Affiliation:
Oklahoma State Univ., Stillwater, OK 74078

Abstract

Seven field experiments were conducted in Oklahoma to compare efficacy and wheat response to currently registered cheat suppression or control herbicide treatments. Chlorsulfuron + metsulfuron premix (5:1 w/w) at 26 g ai/ha applied PRE controlled cheat 20 to 61%, increased wheat grain yields at two of seven locations, and decreased dockage due to cheat at five of seven locations. Chlorsulfuron + metsulfuron at 21 g/ha tank-mixed with metribuzin at 210 g/ha, applied early fall POST, controlled cheat 36 to 98% and increased wheat yield at four of seven locations. Metribuzin applied POST in the fall at 420 g/ha controlled cheat 56 to 98% and increased wheat yields at five of seven locations. Both POST treatments decreased dockage at all locations.

Type
Research
Copyright
Copyright © 1997 by the Weed Science Society of America 

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References

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