25%氟啶·螺虫乙酯悬浮剂防治甘蓝蚜虫药效试验

Efficacy Test of 25%Fluridine·spiromethyl Suspension Concentrate against Aphids on Cabbage

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。

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 of 92.14%,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.