论文部分内容阅读
褐飞虱是水稻主要害虫之一,近年来褐飞虱对防治药剂产生了一定的抗药性。为寻求防治褐飞虱有效新药剂,利用比较方法,进行燕化吡蚜酮.烯啶虫胺(以下简称燕化扫飞)防治晚稻褐飞虱小区试验。试验结果表明,药后7d,燕化扫飞12g、燕化扫飞9g+敌敌畏150ml、吡蚜酮24g、立本烯啶虫胺30g防效分别为94.8%、93.8%、91.5%、91.1%;燕化扫飞对褐飞虱防治效果较好,优于敌敌畏、吡蚜酮、立本烯啶虫胺,是防治褐飞虱的好药剂,可以在大田推广应用。生产上用量以12g/667m2为佳,药后3d防效达92.3%,7d防治效果可达94.8%。
Nilaparvata lugens (Nilaparvata lugens) is one of the major pests in rice. In recent years, Nilaparvata lugens (Nilaparvata lugens) has produced some resistance to the control agent. In order to find a new effective agent for controlling brown planthopper, a comparative experiment was conducted to investigate the control effect of nitenpyram / nitenpyram on the brown planthopper in late rice. The results showed that the control effects of the pesticides were 94.8%, 93.8%, 91.5% and 91.1%, respectively, on the 7th day after the drug was swallowed, 12g in Yanhua, 9g + Dichlorvos in Yanhua sweeping and 150ml pymetrozine and 24g pymetrozine. Yanhua sweeping fly better control of BPH, better than dichlorvos, pymetrozine, Liben pyridine amine, is a good agent to control brown planthopper, can be popularized and applied in the field. Production dosage of 12g / 667m2 is better, 3d control effect reached 92.3% 3d, 7d control effect of up to 94.8%.