稻纵卷叶螟(Cnaphalocroeis medinalis Guenee)、白背飞虱(Sogatella JfurciferaHoruath)是江苏地区中、晚稻重要害虫,均系远距离迁飞性昆虫。江苏的主要虫源来自我国南方双季稻区(张孝羲等,1981;胡国文等,1988)。关于不同种昆虫同步迁飞现象国外研究颇多。Kisimoto等(1982)从1977～1978年,通过东海气象观察船定点捕捉迁飞昆虫的资料证明,褐飞虱与白背飞虱有同步迁飞现象,迁入时的天气条件也颇相似,Miyahara(1987)报告粘虫与小菜蛾同时从国外迁入日本南部地区。江苏地区稻纵卷叶螟、白背飞虱 Cnaphalocroeis medinalis Guenee and Sogatella Jfurcifera Horuath are important pests of middle and late rice in Jiangsu Province, all of which are long-distance migratory insects. The main source of insects in Jiangsu came from the southern double cropping rice area in China (Zhang Xiaoxi et al., 1981; Hu Guowen et al., 1988). There are quite a lot of studies abroad on the phenomenon of different kinds of insects migrating synchronously. Kisimoto et al. (1982) data from the East China Meteorological Observatory sentinel to capture migratory insects from 1977 to 1978 showed that the brown planthopper and the white-backed planthopper had synchronized migratory phenomena with similar weather conditions at the time of migration. Miyahara (1987) ) Reported that armyworms and diamondback moths migrated from abroad into southern Japan at the same time. Jiangsu rice leaf roller, white-backed planthopper