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二化螟是水稻的主要害虫。随着耕作制度和品种布局的改变,它的发生量也有了变化,历年来很少发现其对油菜产生大的危害。1995年水田油菜移栽期间出现了二化螟越冬幼虫严重为害油菜的现象。
Chilo suppressalis is a major pest of rice. With the tillage system and varieties of the layout change, its occurrence has also changed, over the years rarely found its rape great harm. During the transplanting of rapeseed in paddy field in 1995, the overwintering larvae of the rice stem borer seriously damaged the rape.