September
2006
, Volume
90
, Number
9
Pages
1,129
-
1,134
Authors
C. A.
Bradley
and
H. A.
Lamey
,
Department of Plant Pathology, North Dakota State University, Fargo 58105
;
G. J.
Endres
and
R. A.
Henson
,
Carrington Research Extension Center, North Dakota State University, Carrington, 58421
;
B. K.
Hanson
,
Langdon Research Extension Center, North Dakota State University, Langdon 58249
;
K. R.
McKay
and
M.
Halvorson
,
North Central Research Extension Center, North Dakota State University, Minot 58701
; and
D. G.
LeGare
and
P. M.
Porter
,
Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul 55108
Affiliations
Go to article:
RelatedArticle
Accepted for publication 1 May 2006.
Abstract
ABSTRACT
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.
JnArticleKeywords
Additional keywords:
Benlate,
Blocker,
Endura,
Folicur,
Gem,
JAU6476,
Omega,
Quadris,
rape-seed,
Ronilan,
Rovral,
Topsin M,
white mold
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ArticleCopyright
© 2006 The American Phytopathological Society
