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阿维菌素与氰戊菊酯的各种配比均对桃蚜存在着不同程度的增效作用 ,其中以阿维菌素与氰戊菊酯按有效成分 1∶2 4的比例复配增效作用最为明显 ,共毒系数达到 2 97.84。室内药效试验也表明 ,2 0 %混剂乳油(0 .8%阿维菌素 +19.2 %氰戊菊酯 )的药效明显高于 2 0 %氰戊菊酯乳油 ,与 0 .9%阿维菌素乳油相当
All kinds of avermectin and fenvalerate have different degrees of synergism to Myzus persicae, among them abamectin and fenvalerate are compounded by the ratio of 1: 2 4 The effect is the most obvious, with a total toxic coefficient of 2 97.84. The indoor efficacy test also showed that the efficacy of 20% emulsifiable concentrate (0.8% abamectin + 19.2% fenvalerate) was significantly higher than that of 20% fenvalerate emulsifiable concentrate and 0. 9% Abamectin EC equivalent