论文部分内容阅读
对试验药剂80%吡蚜酮·烯啶虫胺WG和对照药剂25%噻嗪酮WP防治稻飞虱效果进行了田间药效试验,结果表明:80%吡蚜酮·烯啶虫胺WG对水稻褐飞虱和白背飞虱具有很好的防治效果,速效性好、持效期长,且对水稻安全。每667 m2用药量为12 g时,药后3 d、7 d、14d、21 d防效分别达84.97%、89.19%、91.26%、92.28%;极显著优于对照药剂25%噻嗪酮WP,生产上可大面积推广应用。
The efficacy of 80% pymetrozine · nitenpyram WG and control agent 25% buprofezin WP in controlling planthoppers was tested in the field. The results showed that 80% pymetrozine · nitenpyram WG Rice brown planthopper and white-backed planthopper have good control effect, good quick-effect, long-lasting effect, and safe for rice. The anti-efficacy was 84.97%, 89.19%, 91.26%, 92.28% at 3 days, 7 days, 14 days and 21 days after the drug was applied at a dose of 12 g per 667 m2. It was significantly better than that of the control agent 25% buprofezin WP Production can be large-scale promotion and application.