The Spodoptera exigua(Hübner) which feeds on vegetables and crops is a kind of important pest.It has been known to be resistance to many kinds of insecticides and difficult to control in our country.Its form,development and mechanism of resistance were summarized,the synthetic management was discussed too.The factors affecting the resistant level include hosts,background of using insecticides ,etc.The mechanisms of resistance on S.exigua is most reported about phybiology and biochemistry.The synthetic manag...