A method for preventing a plant such as vegetables, corn, cotton, rice, sugar beet or soybean from damage by insect pest after germination of the plant which comprises steps of treating seeds of the plant with a composition containing a (N′-methyl)benzoylurea compound represented by the formula (I):
wherein R
1
denotes a hydrogen atom or the like, R
2
denotes a halogen atom or the like, R
3
denotes a halogen atom, an optionally halogenated C1-C4 alkyl group, or the like, and sowing the treated seeds, followed by cultivation.
一种防止植物如蔬菜、玉米、棉花、稻米、甜菜或大豆在萌芽后受害于昆虫害虫的方法,包括以下步骤:用含有式(I)表示的(N'-甲基)苯甲酰
脲化合物的组合物处理该植物的种子,其中R1表示氢原子或类似物,R2表示卤素原子或类似物,R3表示卤素原子、可选卤素化的C1-C4烷基或类似物,然后播种处理过的种子,接着进行栽培。