龙海市早稻播种期常年在 2月中旬初 ,移栽 4月中旬 ,破口抽穗期在 6月上旬末至中旬 ,这时期与二代三化螟孵化高峰期基本吻合 ,也是施药保产的关键时期 ,稻农已习惯掌握此时期施药治螟并治纹枯病等病虫的综合防治 ,基本上能控制病虫危害。但仍有一些农户不及时施药或施药质量差 Longhai early rice sowing perennial in early February in mid-April transplanting heading date in late June to mid-late, this period and the third generation of striped borer peak incubation period is basically the same, but also pesticide application Of the critical period, rice farmers have been accustomed to grasp the period of pesticide application and treatment of pests and diseases such as sheath blight prevention and control of pests and diseases, basically to control pests and diseases. However, some farmers still do not apply the pesticides in a timely manner or use poor quality pesticides