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香蕉褐缘灰斑病是对香蕉危害最重的一种主要叶斑病,一般叶片受害面积在30%左右,严重流行时可达80%以上,病株产量减少,果实品质下降,可导致50%以上的减产损失。发病原因:引发香蕉褐缘灰斑病的病原为香蕉尾孢菌(图1),有性世代为香蕉生球腔菌。其直立或膝状弯曲的分生孢子梗丛生于暗色子座上,无色有分隔的分生孢子呈鼠尾状。香蕉尾孢菌以菌丝体或分生孢子
Banana brown edge gray spot is the most harmful to banana leaf spot, the most common leaf damage area is about 30%, severe epidemic up to more than 80%, reduce the yield of diseased plants, fruit quality can lead to 50 % Or more of the loss reduction. The cause of the disease: The pathogen causing the gray edge of the banana brown edge Cercospora sp. (Figure 1), the sexual generation for the banana bacteria. The conidiophores, which are upright or knee-bent, are born in the dark-colored seat, and the colorless, separated conidia are rat-tailed. Cercospora cercariae to mycelium or conidia