仙居县杂交中晚稻细条病常年重发 ,分析原因 :一是农民习惯于用病草捆扎秧苗 ;二是单双混栽程度的不断上升 ;三是大面积种植的杂交组合均不抗病 ;四是气候条件有利于病害发生 ,特别是连晚易感生育期遭遇台风暴雨多发季节 ;五是肥水管理不当。针对其发生原因提出了以农业防治为基础 ,药剂防治为辅助的综合防治措施 Xianju County hybrid rice perennial recurrence in late rice, analysis of reasons: First, farmers used to tie the sick grass seedlings; Second, the level of single and double planting continuous increase; Third, large-scale hybrid combinations are not resistant to disease; Fourthly, the climatic conditions are conducive to the occurrence of diseases, especially in the late eclosion period where there are frequent typhoon rains. Fifthly, fertilizer and water management is not properly managed. In view of its causes, it puts forward the comprehensive prevention and control measures based on agricultural control and chemical control