The formula 1 which includes all geometrical isomers and stereoisomer< Conversion 1 >(In formula, R, R, R and R, X, as for Y and m during this disclosing as defined, are) chemical compound, that N oxide and the salt are disclosed. Method in order to prevent the plant blight which originates in the true germ venereal disease technical product which includes the process which applies the chemical compound or the composition of the effective quantity of the composition, and this invention which contain the chemical compound of formula 1 is disclosed and.すべての幾何異性体および立体異性体を含む式1【化1】(式中、R1、R2、R3、R4、X、Yおよびmは本開示中に定義されているとおりである)の化合物、そのN-オキシドおよび塩が開示されている。式1の化合物を含有する組成物、および、本発明の有効量の化合物または組成物を適用する工程を含む真菌性病原体に起因する植物病害を防除するための方法がまた開示されている。