A description is given of herbicidal compositions comprising N-(tetrazole-5-yl)- or N-(1,3,4- oxadiazole-2-yl)aryl amides and an 3-isoxazolidinone. These herbicidal compositions are particularly suitable for use against weed plants in crops of useful plants.本發明闡述除草組合物,其包含N-(四唑-5-基)-或N-(1,3,4-二唑-2-基)芳基醯胺及3-異唑啉酮。該等除草組合物尤其適用於對抗有用植物之作物中之雜草植物。