The present invention provides the compounds represented by the general formula (I): [wherein X is a halogen atom or an (C1-C3) alkyl group which may be substituted with a halogen atom(s)； Y is a hydrogen or halogen atom, or a cyano, a(C1-C3) alkyl or (C1-C3) alkoxy group； R is a hydrogen or halogen atom, a cyano group, or a(C1-C6) alkyl ,(C2-C6) alkenyl group, (C2-C6) alkynyl, (C1-C6) alkoxy, (C2-C6) alkenyloxy, (C2-C6) alkynyloxy, (C1-C6) alkylthio, (C1-C6) alkylsulfinyl or (C1-C6) alkylsulfonyl group which may be substituted with a halogen atom(s), a(C1-C6) alkoxycarbonyl group, a(C1-C6) alkoxyimino (C1-C3) alkyl group, a tri (C1-C10) alkylsilyl group, or a phenyl,phenoxy, pyridyloxy or pyrimidyloxy group which may be substituted with a substituent (s) ； n is an integer of 1 to 5], which compounds cause reduced loads of deleterious, harmful effects to the earth environment, and exhibit a widened controlling spectrum at lowered chemical application rates, thereby finding useful application as a plant disease controlling agent for agricultural and horticultural uses.
