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Renovation of Endophyte (Acremonium coenophialum)-Infected Tall Fescue (Festuca arundinaceae) Pastures with Herbicides

Published online by Cambridge University Press:  12 June 2017

Michael S. Defelice  and
Jimmy C. Henning
Michael S. Defelice
Affiliation:
Dep. Agron., Univ. Missouri, Columbia, MO 65211
Jimmy C. Henning
Affiliation:
Dep. Agron., Univ. Missouri, Columbia, MO 65211
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Abstract

Fall, spring, or late-summer applications of glyphosate, paraquat, sethoxydim, and HOE-39866 were investigated in field trials for no-tillage renovation of endophyte fungus-infected tall fescue pastures. Only spring or late-summer applications of glyphosate at 1.68 and 2.52 kg ae ha−1 consistently provided greater than 80% visual tall fescue control. However, none of the herbicide treatments significantly reduced final percent endophyte fungus infection levels after the pasture was reestablished. High final infection levels were due to regrowth from underground rhizomes of old tall fescue sod that survived the herbicide treatments.

Keywords

Glyphosate, N-(phosphonomethyl)glycineparaquat, 1,1′-dimethyl-4,4′-bipyridinium ionsethoxydim, 2-{1-ethoxyimino)butyl] - 5 - [2-(ethylthio)propyl] -3- hydroxy-2-cyclohexen-1-oneHOE-39866, ammonium-(3-amino-3-carboxypropyl)methyl-phosphinatefescue endophyte fungus, Acremonium coenophialum Morgan-Jones and Gamstall fescue, Festuca arundinacea Schreb. # FESARGlyphosateparaquatsethoxydimHOE-39866
Type
Special Topics
Information
Weed Science , Volume 38 , Issue 6 , November 1990 , pp. 628 - 633
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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