中文摘要：

田间药效试验结果表明,3.2%高效氯氰菊酯·甲氨基阿维菌素苯甲酸盐微乳剂对十字花科蔬菜主要害虫甜菜夜蛾Spodoptera exigua（Hubner）、小菜蛾Plutella xylostella（L.）、菜青虫Pieris rapae（L.）和斜纹夜蛾Spodoptera litura（Fabricius）均具有优良的防治效果,并有较好的速效性和持效性。3.2%高效氯氰菊酯.甲氨基阿维菌素苯甲酸盐微乳剂20,25和30g/667m^2 3个处理药后1d对甜菜夜蛾、小菜蛾、菜青虫和斜纹夜蛾的防治效果为60.67%～77.41%,药后3d的防治效果达81.82%～97.77%,药后7d的防治效果达83.74%～99.25%。3.2%高效氯氰菊酯.甲氨基阿维菌素苯甲酸盐微乳剂可以作为防治蔬菜主要害虫的有效药剂推广使用,推荐使用剂量为25～30g/667m^2（12～14.4gai/hm^2）。

英文摘要：

The results of field trails showed that the beta-cyfluthrin·Emamectin benzoate 3.2% ME was a suitable insecticide product for controlling cruciferous vegetable pests including Spodoptera exigua（Hübner）,Plutella xylostella（L.）,Pieris rapae（L.） and Spodoptera litura（Fabricius） with quicker and long effect.The control effect were 60.67%～77.41% in first day,81.82%～97.77% in the third day and 83.74%～99.25% in the seventh day with the dosage of 20,25 and 30 g/667m^2（9.6,12.0 and 14.4 g ai/hm^2）.It can be used to control the four kinds of pests from cruciferous vegetable in the field with the dosage of 25～30 g/667m^2（12～14.4 g ai/hm^2）.