黄斑病是甘蔗伸长期发生的重要病害之一,要及时防治。否则,会由一个斑点发展至全叶,使叶片赤红干枯,由一个发病中心蔓延至大面积,严重影响光合作用,影响产量,轻的减产1成,重则达3成以上。在高温、高湿台风多的条件下,黄斑病菌易被风雨传播,发病快,蔓延快。因此必须防重于治,采取栽培和药剂相结合的综合防治措 Macula is one of the most important diseases in sugarcane elongation and should be controlled in time. Otherwise, it will develop from a spot to the whole leaf, making the leaves red and red dry, spread from a disease center to a large area, seriously affecting the photosynthesis, affecting the yield, light cut 10%, while the weight of up to 3%. Under the conditions of high temperature and high humidity and typhoons, the disease is easily spread by wind and rain, with fast onset and rapid spread. Therefore, we must take precautions against governance and adopt a comprehensive prevention and cure measures that combine cultivation and medicine