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Fenoxaprop for Annual Foxtail (Setaria sp.) Control in Seedling Perennial Forages

Published online by Cambridge University Press:  12 June 2017

Dean L. Linscott  and
Richard H. Vaughan
Dean L. Linscott
Affiliation:
U. S. Dep. Agric., Cornell Univ., Ithaca, NY 14853–0144
Richard H. Vaughan
Affiliation:
U. S. Dep. Agric., Cornell Univ., Ithaca, NY 14853–0144
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Abstract

Seedling timothy tolerated fenoxaprop at 0.09 kg ai ha-1 whereas seedling orchardgrass tolerated applications as high as 0.13 kg ai ha-1. Several fenoxaprop treatments increased perennial grass yields the year following establishment. Fenoxaprop appears to solve annual foxtail problems in new plantings of orchardgrass or timothy seeded alone. Over a 2-yr period, alfalfa yields in on alfalfa-grass mixture were maintained or increased from fenoxaprop applied the seedling year. In the mixtures, timothy yield declined in relation to fenoxaprop applied, but orchardgrass did not. Use of fenoxaprop on seedling alfalfa-timothy or alfalfa-orchardgrass mixtures is questionable.

Keywords

Fenoxaprop, (±)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy] propanoic acidtimothy, Phleum pratense L. ♯3 PHLPRorchardgrass Dactylis glomerata L. ♯ DACGLalfalfa, Medicago sativa L. ♯ MEDSAgreen foxtail, Setaria viridis (L.) Beauv. ♯ SETVIyellow foxtail, Setaria glauca (L.) Beauv. ♯ SETLUGrass-legume mixtures
Type
Research
Information
Weed Technology , Volume 4 , Issue 3 , September 1990 , pp. 560 - 564
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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