Disclosed is a plant disease control agent which can exhibit a superior control effect on plant diseases at a low dose. The plant disease control agent comprises at least one component selected from tetrazolyl oxime derivatives each represented by formula (I) and salts thereof and at least one component selected from the group consisting of imidacloprid, triflumizole, spinosad, hydroxyisoxazole, thiophanate methyl, tricyclazole, clothianidin, benomyl, acetamiprid and salts thereof. In formula (I), X represents a C1-6 alkyl group or the like n represents an integer of 0 to 5 Y represents a C1-6 alkyl group Z represents a group represented by the formula NHC(=O)-Q, or the like Q represents a C1-8 alkoxy group or the like R represents a halogen atom and m represents an integer of 0 to 3.Se describe un agente para control de enfermedades en plantas, que tiene un efecto superior en el control de enfermedades en plantas, a dosis bajas. El agente para control de enfermedades en plantas incluye por lo menos uno seleccionado de los derivados del tetrazolil oxima representados por la fórmula (i) y sus sales, y por lo menos uno seleccionado del grupo que consiste de imidacloprid, triflumizol, spinosad, hidroxi isoxazol, metil-tiofanato, triciclazol, clotianidina, benomil, acetamiprid y sus sales. En la fórmula (I), X representa un grupo C1-6 alquilo o semejantes n representa un entero de O a 5 Y representa un grupo C1-6 alquilo Z representa un grupo representado por NHC(=0)-Q o semejantes Q representa un grupo C1-8 alcoxi o semejantes R representa un átomo de halógeno m representa un entero de O a 3.
