Fusarium spp.; deoxynivalenol, cereals; chemical treatments
Abstract :
[en] Re-emergence of Fusarium head blight (FHB) on
wheat should be taken into account in the global management
of cropped fields, especially with respect to
fungicide application schemes, due to harmful toxin
production. The aim of this study was to assess, in three
experimental fields representative of the various
topoclimatological zones of Luxembourg, the impact of
timing of fungicide spray application on the prevalence
and severity of FHB, the concentration of mycotoxins,
and Fusarium strain pattern in winter wheat. It was
found that fungicide treatments and the time of application
had a significant impact on the amount of deoxynivalenol
(DON) detected (P=0.027, ANOVA). In our experimental
design, the application of fungicides at 3 different
times increased the amount of DON in winter
wheat compared to two and single applications. The importance
of the timing of fungicide application is discussed
in relation to limiting toxin contamination in the
field.
Disciplines :
Agriculture & agronomy
Author, co-author :
Giraud, Frédéric
Pasquali, Mattias
El Jarroudi, Moussa ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Département des sciences et gestion de l'environnement
Cocco, Emmanuelle
Delfosse, Philippe
Hoffmann, Lucien
Bohn, Torsten
Language :
English
Title :
TIMELY FUNGICIDE APPLICATION: A STRATEGY TO MINIMIZE FUSARIUM HEAD BLIGHT AND ASSOCIATED MYCOTOXIN PRODUCTION IN WINTER WHEAT
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