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通过接触法和摄入法对甲氰菊酯、辛硫磷及其混剂对蜜蜂的毒性进行了测定。摄入法对蜜蜂的 Ｌ Ｃ５ ０ 及９５ ％ 置信限分别为：甲氰菊酯４ ．１１（３ ．８６７ ～４ ．３５３）μｇ ／ ｍ Ｌ；辛硫磷６ ．９２８（６ ．６２１ ～７ ．２３６）μｇ ／ ｍ Ｌ；混合剂４ ．７８６（４ ．４８１ ～５ ．０８２）μｇ ／ ｍ Ｌ。接触法对蜜蜂的 Ｌ Ｄ５ ０ 及９５ ％ 置信限分别为： 甲氰菊酯０ ．１０４ ２（ ０ ．０９９ １１ ～０ ．１０９ ５） μｇ／ 只； 辛硫磷０ ．１８０ ２（０ ．１７４ ４ ～０ ．１８６ ７） μｇ／ 只；混合剂０ ．１６４ ３（０ ．１５９ ２ ～０ ．１６９ ５） μｇ／ 只；联合作用系数法评定结果表明，甲氰菊酯和辛硫磷混用后对蜜蜂的毒性变化规律为相加作用。
The toxicities of fenpropathrin, phoxim and their mixture to bees were determined by the contact method and ingestion method. The L C5 0 and 95% confidence limits of the ingestion method for bees are: Fenpropathrin 4. 11 (3.867 ~ 4.353) μg / m L; Phoxim 6. 928 (6 .621 ~ 7 .236) μg / m L; 786 (4.481 ~ 5.08) μg / m L. The contact L D50 and 95% confidence limits for bees were: fenpropathrin. 104 2 (0.099 11 ~ 0.109 5) μg / bird; Phoxim 0. 180 2 (0 .174 4 ~ 0 .186 7) μg / tablet; 164 3 (0.159 2 ~ 0.169 5) μg / kg. The combined effect coefficient method showed that the toxic effects of fenpropathrin and phoxim on the bees were additive.