褐飞虱是通州市水稻生产中后期的主要害虫,2005年在沿江、沿海地区大发生,导致水稻出现大面积成片倒伏枯死;2006年又是特大发生,其虫量为去年同期的35倍,成为又一个暴发成灾之年。其发生特点是:灯下迁入峰期偏早,迁入量特大;田间短翅型成虫始见早,数量多;后期稻田虫卵量高,为害 Nilaparvata lugens was the main pest in the middle and later stages of rice production in Tongzhou City. In 2005, large-scale rice paddy occurred in large areas along the Yangtze River and in the coastal areas, resulting in the occurrence of large-scale rice lodging and withering. In 2006, the Nilaparvata lugens was extremely large and occurred 35 times more than the same period of last year Another year of outbreaks. Its occurrence is characterized by the following reasons: the peak of moving into the lamp is earlier and the amount of influx is larger; the short-winged adults in the field begin to see early and the quantity is more;