Efficacy of Fungicides against Fusarium Head Blight Depends on the Timing Relative to Infection Rather than on Wheat Growth Stage

نویسندگان

چکیده

Fungicides used to control Fusarium head blight (FHB) are commonly applied at the wheat growth stage considered be most susceptible, i.e., anthesis. We compared efficacy of fungicide groups that were following two strategies: (i) pre-defined stages, from first half heading end flowering (experiment 1, in 2013 2015), or (ii) based on timing infection by F. graminearum, specifically 10, 7, 4, 1 day before, 3 5 days after artificial inoculation fungus 2, 2017 and 2018). Fungicide was evaluated terms FHB incidence, severity, DON contamination using generalised mixed models. In experiment all reduced severity but only <50% an untreated control, with no differences among fungicides stages time application. higher for applications 4 before than 7 10 inoculation, groups. Based our results, application should graminearum rather phenology.

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ژورنال

عنوان ژورنال: Agronomy

سال: 2021

ISSN: ['2156-3276', '0065-4663']

DOI: https://doi.org/10.3390/agronomy11081549