香蕉是广东省的重要经济作物,主要分布于珠江三角洲、粤西、粤东地区。香蕉叶斑病(褐缘灰斑病、灰纹病、煤纹病等真菌性病害的统称)常年发生为害,一般发病率为20%～40%,严重的达80%,对香蕉的产量和质量影响很大,一般减产20%以上。多年来在广东防治香蕉叶斑病的农药主要为丙环唑 Bananas are important cash crops in Guangdong Province, mainly distributed in the Pearl River Delta, western Guangdong and eastern Guangdong. Banana leaf spot disease (brown edge gray spot, ash disease, coal disease and other fungal diseases, collectively referred to) perennial damage, the general incidence of 20% to 40%, severe up to 80% of banana yield and The quality of the impact of the general reduction of more than 20%. Over the years in Guangdong banana leaf spot prevention and control of pesticides mainly for propiconazole