EPPO Global Database

Xanthomonas arboricola pv. juglandis(XANTJU)

Photos

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Severe attack of walnut blight on fruit

Courtesy: Riccardo Bugiani (Plant protection Service. Emilia-Romagna Region) Italy

Young walnut fruits with necrotic bacterial spots

Courtesy: Riccardo Bugiani

Small necrotis spots caused by Xanthomonas juglandis observed on leaves

Courtesy: Riccardo Bugiani (Plant protection Service. Emilia-Romagna Region) Italy

Early necrotic lesions on young fruit

Courtesy: Riccardo Bugiani (Plant protection Service. Emilia-Romagna Region) Italy

Young fruits severely affected by Xanthomonas juglandis

Courtesy: Riccardo Bugiani (Plant protection Service. Emilia-Romagna Region) Italy

Initial symptoms of walnut blight can be most easily observed by looking at the leaves against the light

Courtesy: Riccardo Bugiani (Plant protection Service. Emilia-Romagna Region) Italy