The selective toxicity of 15 insecticides between Aphis citricola von der Goot and Coccinella septempunctala L. was investigated with a topical application method recommended by FAO.

• 摘要采用FAO推荐的点滴法，测定了15种常用杀虫剂对苹果黄蚜及其天敌七星瓢虫幼虫的毒力，比较了药剂在二者之间的毒力选择性。