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采用滴加法测定L、X及其混配制剂对黄胸散白蚁的毒性，试验结果经统计分析表明，混配制剂对黄胸散白蚁的毒性比单剂L、X分别提高1．46、3．323倍，共毒系数（CTC）为178．13，具有明显的增效作用，由此可知L与X混配是一个理想的配方。
Toxicity of L, X and their mixed formulations to termites was detected by the dropping method. The results of the test showed that the toxicity of the mixed formulation to the termites was higher than that of the single dose of L and X by 1.46 and 3, respectively .323 times, the coefficient of co-toxicity (CTC) of 178.13, with a significant synergistic effect, we can see that L and X mixed is an ideal formula.