Monteiro Neves A, Beyer R
Beitr Trop Landwirtsch Veterinarmed. 1982;20(4):457-65.
Dimilin active ingredient diflubenzuron) is an insecticide influencing the chitin synthesis. The paper investigates its effect under application via the host plant. After oral intake with the food, the larvae of Epilachna varivestis Muls. (Mexican bean beetle) could not carry out the next molting and died. Imagines which had taken up Dimilin laid fewer eggs than untreated beetles, and no larvae hatched from the eggs. Direct treatment of the cluster of eggs with Dimilin also affected their development, depending on the degree of concentration. Freshly laid eggs were more susceptible than older ones. Contact with the treated non-host plant Vicia faba also caused disturbances in the development. The sensitive phase in the second instar lies between 24 and 48 hours after the previous molt. 3 to 6 hours exposition time are sufficient to inhibit the molting of the larvae, 9 hours suppressed the molting completely. The concentration limit for larvae of Epilachna varivestis lies between 1.0 and 2.5 ppm.
敌灭灵（有效成分：除虫脲）是一种影响几丁质合成的杀虫剂。本文研究了其通过寄主植物施用时的效果。墨西哥豆瓢虫取食含有敌灭灵的食物后，幼虫无法进行下一次蜕皮并死亡。摄取了敌灭灵的成虫所产的卵比未处理的甲虫少，且卵中未孵化出幼虫。用敌灭灵直接处理卵块也会影响其发育，这取决于浓度程度。刚产下的卵比陈旧的卵更易受影响。接触经处理的非寄主植物蚕豆也会导致发育紊乱。第二龄幼虫的敏感期在前一次蜕皮后的24至48小时之间。3至6小时的暴露时间足以抑制幼虫蜕皮，9小时可完全抑制蜕皮。墨西哥豆瓢虫幼虫的浓度限制在1.0至2.5 ppm之间。
