5%氟铃脲·阿维菌素水乳剂防治甘蓝甜菜夜蛾药效试验

Efficiency of Hexaflumuron·Avermectin 5%EW for Control of Cabbage Beet Armyworm

对5%氟铃脲·阿维菌素水乳剂防治甘蓝甜菜夜蛾进行了田间药效试验。结果表明,当5%氟铃脲·阿维菌素水乳剂的使用剂量为30 mL/667 m^2、35 mL/667 m^2和40 mL/667 m^2时,施药后1 d对甘蓝甜菜夜蛾的防效分别达65.42%、69.97%和72.83%;施药后3 d分别为68.71%、72.34%和80.16%;施药后7 d分别为72.02%、76.29%和84.06%。5%氟铃脲·阿维菌素水乳剂在试验剂量下对甘蓝甜菜夜蛾防效高,对作物安全。

The control effect of hexaflumuron·avermectin 5%EW on cabbage beet armyworm was studied.The result of field trail showed that hexaflumuron·avermectin 5%EW 30 mL/667 m^2,35 mL/667 m^2 and 40 mL/667 m^2 had good effect for controlling the cabbage beet armyworm,the efficacy was 65.42%,69.97%and 72.83%after 1 day,the efficacy was 68.71%,72.34%and 80.16% after 3 days,and the efficacy was 72.02%,76.29%,84.06 after 7 days.It was safe to cabbage.