【摘要】 以氟啶虫酰胺水分散粒剂、螺虫乙酯悬浮剂为对照,比较了不同用量氟啶·螺虫乙酯悬浮剂对甘蓝蚜虫的防治效果。试验结果表明,25%氟啶·螺虫乙酯悬浮剂3个处理(56.25、65.63、75.00 g/hm~2)对甘蓝蚜虫均有良好的防治效果,其中,药后7 d的防治效果最好,分别为92.14%、95.21%和99.16%,具有较好的速效性和持效性,持效期10 d以上。因此,25%氟啶·螺虫乙酯悬浮剂是防治甘蓝蚜虫较为理想的药剂,建议与其他农药合理轮用。更多还原

【Abstract】 The control effect of different dosages of fluridine·spiromethyl suspension concentrate(SC) on cabbage aphids were compared, with fludizimide water dispersible granule(WG) and spirotetramat SC as the controls. The results showed that three treatments(56.25, 65.63 and 75.00 g/hm~2) of 25% fluridine·spiromethyl SC had good control effects on controlling cabbage aphids. The best control effect was 7 days after the insecticide application, with control efficacy of92.14%, 95.21%, and 99.16%, respectively. And it had good quick-acting and lasting effect, and the lasting period was more than 10 days. Therefore, 25% fluridine·spiromethyl SC was an ideal insecticide for controlling aphids on cabbage,and it should be used in rotation with other insecticides.更多还原