稻飞虱是我省重要的稻虫,主要种类有褐稻虱、白背飞虱和灰飞虱。稻飞虱天敌种类甚多,在一定时期控制了稻飞虱的发生。其中卵期寄生性天敌,对稻飞虱发生数量起显著的抑制作用。我们于1977—1978年在闽北稻区对 Planthopper is an important pest in our province, the main species of brown planthopper, white-backed planthopper and Laodelphax striatellus. There are many kinds of planthopper natural enemies, which control the occurrence of planthoppers in a certain period of time. Among them, egg-stage parasitoid natural enemies played a significant inhibitory effect on the occurrence of planthoppers. We are in 1977-1978 in northern Fujian rice area right