To provide the subject composition having synergistically improved effect against the infection of powdery mildew by including specific substituted benzene derivative and a triazol-based compound and the like.
This composition contains at least two active ingredients of (A) a substituted benzene derivative represented by formula I [R is a 1-12C alkyl, a 3-12C halogenoalkyl or the like; Ar is a group of formula II (R1 is trifluoromethyl, difluoromethyl or the like; R2 is H, methyl, trifluoromethyl or the like; n is 0-2) or the like], and (B) at least one compound selected from a triazol-based compound, an imidazole-based compound, a morpholine-based compound, a benzimidazole-based compound (preferably thiophanate-methyl), an anilinopyrimidine-based compound (preferably mepanipyrim), an acrylate- based compound, iminoctadine albesilate and polyoxin.
YOSHIKAWA YUKIHIRO
KAWASHIMA HIDEO
KISHI JUNRO
AKESE TOMOHISA
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