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The influence of selected sulfonylurea herbicides including chlorsulfuron mixtures and seed treatment with Baytan Universal on the incidence of net blotch (Drechslera teres) of barley (Hordeum sativum)

Published online by Cambridge University Press:  12 April 2002

R. D. ALADESANWA
R. D. ALADESANWA
Affiliation:
Department of Chemical Plant Protection, Moscow Agricultural Academy, Moscow, Russia Present address: Department of Crop Production, Federal University of Technology, P.M.B. 704, Akure, Ondo State, Nigeria.
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Abstract

A 2-year split-plot field experiment investigated the influence of selected sulfonylurea herbicides including chlorsulfuron mixtures and presowing seed treatment using triadimenol/imazalil/fuberidazole (Baytan Universal 19·5 WP) on the incidence of naturally occurring net blotch (Drechslera teres (Sacc.)) Shoem of barley. All the herbicides examined provided effective and season-long weed control at a similar level that no significant differences in weed density and weed dry weight were found amongst herbicide treatments. Significant (P<0·05) increases in disease prevalence over the weedy check were recorded in herbicide treated plots throughout the evaluation period, but disease severity remained unaffected. Presowing seed treatment with Baytan Universal provided significant control of net blotch of barley compared with the control throughout the evaluation period. No phytotoxicity was observed in any of the treatments.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 138 , Issue 2 , March 2002 , pp. 177 - 183
Copyright
© 2002 Cambridge University Press

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