小菜蛾(Plutella xylostella)是近年来日本主要绿色蔬菜之一甘蓝的害虫。使用农药防治的频率增多。这就是说,小菜蛾对杀虫剂的抗性已经明显并已成为最严重的虫害,防治非常困难。本文简要介绍日本小菜蛾化学防治的历史、现状和问题。 Plutella xylostella is a pest of cabbage, one of the major green vegetables in Japan in recent years. The use of pesticides to control the increased frequency. This means that the resistance of the diamondback moth to insecticides has become obvious and has become the most serious insect pest and the control is very difficult. This article briefly introduces the history, current situation and problems of chemical control of Plutella xylostella in Japan.