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本文报道氧化乐果与敌敌畏混用对麦蚜毒力的室内测定结果．结果表明：两种杀虫剂混用对麦蚜的共毒系数（CTC）为152.62，有明显的增效作用．
This article reports the omethoate and dichlorvos mixed with indoor test results on the toxicity of wheat aphid. The results showed that the co-toxicity coefficient (CTC) of the two insecticides mixed with wheat aphid was 152.62, showing a synergistic effect.