Xanthomonas Juglandis

Lesions which appear on the leaves may grow larger and the center may turn black or translucent. This area may then ooze bacterial discharge and polysaccharides and further infect other tissue it may travel to by rain splash. The size of the lesions vary in young and more mature leaves. Young leaves have lesions from one to a few millimeters while older leaf lesions can range from a few millimeters to half of the leaf. [1]


Krankheiten an Walnuss Juglans regia

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昆虫微生物類等の植物防疫法における規制の有無に関するデータベース

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