稻纵卷叶螟是本省水稻的主要害虫之一。1967年以来,在本省年年发生,为害严重,尤以第四代发生数量最大,当时晚稻正处孕穗、抽穗期,水稻剑叶受害后,对产量影响也最为严重。为了“同病虫害作斗争”,几年来,我们在嘉善、杭州和富阳等地对稻纵卷叶螟的发生规律及防治进行了调查研究,现将有关资料整理于下。 Rice leaf roller is one of the main pests in rice in this province. Since 1967, serious damage occurred in the province every year, especially in the fourth generation. In the late generation, late rice was in the process of booting, heading and the damage of rice leaves was the most serious. In order to “fight against pests and diseases”, we conducted investigations and studies on the occurrence and prevention of rice leaf roller over the past few years in Jiashan, Hangzhou and Fuyang, and other relevant sources.