PROBLEM TO BE SOLVED: To provide a herbicidal composition having an enlarged herbicidal spectrum, capable of controlling important weeds with a smaller amount of an active ingredient, and hardly giving chemical injury to a crop.SOLUTION: The herbicidal composition comprises a compound represented by the general formula [wherein, R1 to R2 are each H, a halogen, a 1-6C alkyl or the like R3 to R7 are each H, a cycloalkyl or the like m and n are each 0-1 X is H, a 3-8 membered heterocyclic carbonyl or the like], and at least one kind of a compound selected from 2, 4-difluoro-2-(&alpha,&alpha,&alpha-trifluoro-m-tolyloxy)nicotinamide, 4-chloro-5-methylamino-2-(&alpha,&alpha,&alpha-trifluoro-m-tolyl)pyridazin-3(2H)-one, 2-(2-chlorobenzyl)-4,4-dimethyl-1,2-oxazolidin-3-one and (5-hydroxy-1,3-dimethyl-1H-pyrazol-4-yl)(&alpha,&alpha,&alpha-trifluoro-2-mesyl-p-tolyl)methanone, as active ingredients.COPYRIGHT: (C)2008,JPO&INPIT【課題】殺草スペクトルを拡大するとともに、より少量の有効成分で重要雑草を防除可能にし、かつ、作物に対しても薬害を生じない除草性組成物を提供する。【解決手段】一般式[式中、R1~R2:H、ハロゲン、C1~C6アルキル等;R3~R7:H、シクロアルキル等;m、n:0~1;X:H、3~8員複素環カルボニル等]で表される化合物及び、2’,4’-ジフルオロ-2-(α,α,α-トリフルオロ-m-トリルオキシ)ニコチンアニリド、4-クロロ-5-メチルアミノ-2-(α,α,α-トリフルオロ-m-トリル)ピリダジン-3(2H)-オン、2-(2-クロロベンジル)-4,4-ジメチル-1,2-オキサゾリジン-3-オンおよび(5-ヒドロキシ-1,3-ジメチル-1H-ピラゾール-4-イル)(α,α,α-トリフルオロ-2-メシル-p-トリル)メタノンから選ばれる1種の化合物を有効成分として含有する除草性組成物。【選択図】なし
