Bioassay results revealed that mixed insecticide Jiaqing exhibited a significant synergism against oriental armyworm, bean aphid and rice leafhopper, and its cotoxicity coefficient (CTC) was 179.

• 生测结果表明:甲基对硫磷与氰戊菊酯混配对粘虫、蚜虫和叶蝉表现出明显的增效作用,其共毒系数分别为179。