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Downy Brome (Bromus tectorum) Control in Winter Wheat

Published online by Cambridge University Press:  12 June 2017

Dean G. Swan and
Ralph E. Whitesides
Dean G. Swan
Affiliation:
Dep. Agron. Soils, Wash. State Univ., Pullman, WA 99164
Ralph E. Whitesides
Affiliation:
Dep. Agron. Soils, Wash. State Univ., Pullman, WA 99164
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Abstract

Metribuzin at 0.42 kg ai/ha and metribuzin plus terbutryn at 0.28 plus 0.67 kg/ha were applied in the fall and spring to control downy brome in winter wheat from 1981 through 1985. Downy brome control averaged 88% from the fall-applied treatments and 63% from the spring-applied treatments. Yields from the fall- and spring-applied treatments averaged 136% and 132% of the check, respectively. Metribuzin plus terbutryn fall-applied controlled downy brome best (93%), and wheat yields were significantly higher than the checks in all experiments. Moreover, as downy brome density among locations increased, wheat yields decreased.

Keywords

Metribuzin, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-oneterbutryn, N-(1,1-dimethylethyl)-N′-ethyl-6-(methylthio)-1,3,5-triazine-2,4-diaminedowny brome, Bromus tectorum L. # BROTEwinter wheat, Triticum aestivum L.MetribuzinterbutrynBROTE

Information

Type
Research
Information
Weed Technology , Volume 2 , Issue 4 , October 1988, pp. 481 - 485
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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