A method of producing an azole derivative according to the invention represented by Formula (XI)wherein R1 denotes a C1-C6 alkyl group, a C2-C6 alkenyl group or a C2-C6 alkynyl group； R2 denotes a C1-C4 alkyl group； each Y denotes a halogen atom, a C1-C4 alkyl group, a C1-C4 haloalkyl group, a C1-C4 alkoxy group, a C1-C4 haloalkoxy group, a phenyl group, a cyano group or a nitro group； and m denotes 0 to 5； when m is 2 or more, each Y may be the same or different. As a result, an azole derivative contained as an active ingredient in an agro-horticultural agent having an excellent controlling effect on diseases can be provided.
