Journal of Pesticide Science
Online ISSN : 1349-0923
Print ISSN : 1348-589X
ISSN-L : 0385-1559
Sensitivity of Botrytis cinerea to fenpyrazamine in Japan and its disease control efficacy against the low-sensitive isolate
Dai HirotomiSoichi TanakaFukumatsu IwahashiNorio Kimura
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JOURNALS OPEN ACCESS Advance online publication

Article ID: D20-029


The baseline sensitivity of Botrytis cinerea to fenpyrazamine was evaluated using 323 isolates collected in Japan prior to its launch. In this study, the isolates were classified as “sensitive” and “low-sensitive” according to their mycelial growth on 10 mg/L fenpyrazamine. However, their EC50 values for the germ-tube elongations from conidia were not significantly different between these two classes. In both a pot test and a field trial, diseases caused by the sensitive and low-sensitive isolates were effectively controlled by fenpyrazamine.

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© Pesticide Science Society of Japan 2020. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) License (

This article is licensed under a Creative Commons [Attribution-NonCommercial-NoDerivatives 4.0 International] license.
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