Herbicidally and fungicidally active 5-oxy-substituted 3-phenylisoxazoline-5-carboxamides and 5-oxy-substituted 3-phenylisoxazoline-5-thioamides of the formula (I) are described.In this formula (I), X, X2 to X6, R1 to R4 are radicals such as hydrogen, halogen and organic radicals such as substituted alkyl. A is a bond or a divalent unit. Y is a chalcogen.本發明係說明一種如式(I)之具除草及殺真菌活性之5-氧-取代之3-苯基異唑啉-5-羧醯胺類及5-氧-取代之3-苯基異唑啉-5-硫醯胺類此式(I)中，X、X2至X6、R1至R4為如：氫、鹵素之基團，及如經取代之烷基之有機基團。A係一個鍵結或一個二價單位。Y係硫族元素。
