First report on DMI fungicide resistance in Gymnosporangium asiaticum, the causal agent of Japanese pear rust, in Japan

Japanese pear rust, caused by Gymnosporangium asiaticum Miyabe ex Yamada, is one of the most important fungal plant diseases affecting Japanese pear cultivation. Although sterol demethylation inhibitor (DMI) fungicides have controlled this disease effectively, outbreaks have been frequent in some ar...

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