It refers to the plant disease control agent containing a formula compound (1) as an active ingredient, wherein X1 and X4 are different or different, representing h, F, CL or trifluoride, at least one X1 and X4 represents fluorine or trifluoride; x2 and X3 are different or different, representing h, F, If one x1, X2 and X4 represent fluorine, the other two do not represent hydrogen; XA represents a formula group (2),(3)it is life. These compounds are highly resistant and reduce Dano at the same time, but they do not show anti microbial activity directly against plant diseases. He also mentioned that a plant disease control method includes the use of the above control agents.Referido a un agente de control de enfermedad de plantas que comprende un compuesto de formula (1) como ingrediente activo, donde X1 y X4 son identicos o diferentes entre si, representan H, F, Cl o trifluorometilo, al menos uno de X1 y X4 representa fluor o trifluorometilo; X2 y X3 son identicos o diferentes entre si, y representan H, F, Cl o metilo, y cuando uno de X1, X2 y X4 representa fluor, cualquiera de los otros dos restantes no representan hidrogeno; Xa representa un grupo de formula (2), (3), (4) o (5). Dichos compuestos inducen una alta resistencia al mismo tiempo que reducen el dano sin exhibir actividades antimicrobianas directas contra los patogenos de plantas. Tambien se refiere a un metodo de control de enfermedad de plantas que comprende la utilizacion del citado agente de control.