As for this invention, 1): Formula (i) (in formula, as for X displaying oxygen or sulfur; As for R1 and R2 cyano, nitro, halogen, displaying C1 - C6 - alkyls, C1 - C6 - halogenation alkyls, methoxy, jihuruorometokishi or torihuruorometokishi; As for R3 halogen, displaying C1 - C4 - alkyls or C1 - C4 - halogenation alkyls; R4 displays hydrogen or halogen) with at least 2,5 - two substitution pyrazole carboxylic acid biphenyl amides of 1 where it is displayed kinds and, 2) group A below) - F): The group A which includes the azoles), the group B which includes sutorobirurin), the group C which includes carboxylic acid amides), the group D which includes the heterocyclic compound), the group E which includes the Kaaba mates), the group F which includes the other bactericide) from at least it regards the bactericide blend which active material II of 1 where it is selected kinds is contained at the quantity which is effective ride together. Furthermore, at least chemical compound I of 1 kinds and pest control method of the harmful fungus at least by the blend of active material II of 1 kinds, the aforementioned chemical compound also the medicine and the seed where contains the use, and the aforementioned blend of I in order to produce this blend and active material II state.
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