纵卷叶螟绒茧蜂Apanteles cypris Nixon是稻纵卷叶螟幼虫的重要寄生性天敌,在我国南方稻区广为分布,对它的作用已逐步被人们所认识。现将我们多年调查研究的结果报告于下。一、发生世代和各虫态历期 (一)发生世代 1.越冬目前仅发现纵卷叶螟绒茧蜂寄生于稻纵卷叶螟的低龄幼虫,未发现其它寄主。稻纵卷叶螟在本市不能越冬。纵卷叶螟绒茧蜂的卵和幼虫也不可能越冬。围 Apanteles cypris Nixon, an important parasitic natural enemy of the larva of Cnaphalocrocis medinalis, is widely distributed in rice growing areas in southern China and its role has been gradually recognized. The results of our many years of research are reported below. First, the occurrence of generations and the worm period (A) Generation 1. Overwintering At present, only found in the leaf roller Entomochaeta parasitic on the rice leafroller larvae, found no other host. Rice leafroller can not wintering in the city. The eggs and larvae of the mesocarp can not overwinter. Wai