二代白背飞虱和二化螟协同防治的研究

• 作 者: 李红兵 马飞 朱启迪
• 机 构: 安徽省白湖农科所,安徽省白湖农科所,安徽省白湖农科所
• 出 处: 安徽农学院学报
• 发表日期: 1992年02期
• 关键词: 白背飞虱 Chilo 早稻 晚稻 调查资料 草间小黑蛛 捕食量 校正死亡率 蜘蛛 若虫

自背飞虱(Sogatella furcira Horvath)一年发生四代,以二代危害最重,造成早稻倒伏,中、晚稻枯苗。近8年的调查资料表明:二代白背飞虱的发生期总是同二化螟(Chilo SupressalisWalkar)的发生期相吻合(见表1)。但在防治策略上总是一虫一治,这不仅耗费大量成本,而且也

Four generations of Sogatella furcira Horvath occur each year, with the second generation being hardest hit, resulting in early rice lodging, medium and late rice seedlings. According to the survey data of the past 8 years, the occurrence period of second generation Siberian back-louse is always consistent with the occurrence of Chilo Suprebaris (Table 1). However, the prevention and control strategy is always a worm, which not only cost a lot of costs, but also