香蕉叶斑病是由不同菌物引起的多种不同症状类型叶部病害的总称。在我国主要有褐缘灰斑病、灰纹病和煤纹病等。该类病害在国内各香蕉产区普遍发生,是香蕉生产中最为严重、具有毁灭性的病害之一,可使病株减产30%~50%。因生产上尚无抗叶斑病的香蕉品种,所以在防治上仍以药剂防治为 Banana leaf spot disease is caused by a variety of different types of leaf symptoms of leaf disease collectively. In our country there are brown edge gray spot disease, ash disease and coal pattern and so on. Such diseases are common in various banana producing areas in China. They are one of the most serious and devastating diseases in banana production, and can reduce the yield of diseased plants by 30% to 50%. Because there is no production of anti-leaf spot banana varieties, so in the prevention and control of drugs is still controlled