Efficacy of Fungicides for Control of Sclerotinia Stem Rot of Canola

Sclerotinia stem rot (SSR), incited by Sclerotinia sclerotiorum, causes yield reductions to canola (Brassica napus) grown in North Dakota and Minnesota. Field trials were conducted in North Dakota and Minnesota from 2000 to 2004 to evaluate the effect of foliar fungicides on SSR and canola yield. Le...

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Veröffentlicht in:Plant disease 2006-09, Vol.90 (9), p.1129-1134
Hauptverfasser: Bradley, C.A, Lamey, H.A, Endres, G.J, Henson, R.A, Hanson, B.K, McKay, K.R, Halvorson, M, LeGare, D.G, Porter, P.M
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container_end_page 1134
container_issue 9
container_start_page 1129
container_title Plant disease
container_volume 90
creator Bradley, C.A
Lamey, H.A
Endres, G.J
Henson, R.A
Hanson, B.K
McKay, K.R
Halvorson, M
LeGare, D.G
Porter, P.M
description Sclerotinia stem rot (SSR), incited by Sclerotinia sclerotiorum, causes yield reductions to canola (Brassica napus) grown in North Dakota and Minnesota. Field trials were conducted in North Dakota and Minnesota from 2000 to 2004 to evaluate the effect of foliar fungicides on SSR and canola yield. Levels of SSR varied among years and location. In general, fungicides that consistently reduced SSR incidence compared with an untreated control were azoxystrobin, benomyl, boscalid, iprodione, prothioconazole, tebuconazole, thiophanate-methyl, trifloxystrobin, and vinclozolin. Significant reductions in SSR incidence with fungicides did not always translate into differences in canola yield, however. Inconsistent results were observed with different timings of applications based on percent bloom. This indicates that application timing should be based on factors in addition to percent bloom.
doi_str_mv 10.1094/PD-90-1129
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source Alma/SFX Local Collection; EZB Electronic Journals Library; American Phytopathological Society Journal Back Issues
subjects application timing
Biological and medical sciences
Brassica napus
canola
crop yield
disease control
disease incidence
field experimentation
foliar application
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
fungicides
Phytopathology. Animal pests. Plant and forest protection
plant pathogenic fungi
plant rots
Sclerotinia
Sclerotinia sclerotiorum
title Efficacy of Fungicides for Control of Sclerotinia Stem Rot of Canola
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