Toxicity measurement in lab indicated that the mixtures of carbosulfan and imidacloprid at different ratio all had synergistic effect on Aphis citricola, in which the mixture at the ratio of 2:1 got the greatest synel-gistic effect.

• 摘要室内毒力测定表明，丁硫克百威与吡虫啉不同配比的混合物对苹果黄蚜均有一定的增效作用，其中2:1混配物的增效作用幅度最大。