PROBLEM TO BE SOLVED: To provide a pest control composition having excellent control efficacy to pests.SOLUTION: There is provided a pest control composition containing a compound represented by the formula (1), a compound of which the benzene ring is substituted by a pyridine ring, or N-oxide thereof, and one or more compound selected from a bactericide, an insecticidal and acaricide, a chemical injure reducer, and a plant growth regulator. In the formula (1), A1a represents -N(CH3)-, an oxygen atom, a sulfur atom and the like, A2a represents a nitrogen atom, =CH- and the like, A3a represents a nitrogen atom, =CH- and the like, R1a represents a C1 to C6 chain hydrocarbon group and the like such as an ethyl group, R2a, R3a, R4a and R5a are same or different and represent a hydrogen atom, C1 to C6 chain hydrocarbon group which may have one or more halogen atom, and the like, R6a and R7a are same or different and represent a hydrogen atom, a trifluoromethyl group, a halogen atom and the like, and n represents 0, 1 or 2.COPYRIGHT: (C)2015,JPO&INPIT【課題】有害生物に対する優れた防除効力を有する有害生物防除組成物を提供する。【解決手段】下式(1)で示される化合物、又はそのベンゼン環をピリジン環に代えた化合物、若しくはそのN-オキシドと、殺菌剤、殺虫・殺ダニ剤、薬害軽減剤、植物生長調節剤より選ばれる1種以上の化合物とを含有する有害生物防除組成物。[式中、A1aは-N(CH3)-、酸素原子、硫黄原子等を表し、A2aは窒素原子、=CH-等を表し、A3aは窒素原子、=CH-等を表し、R1aはエチル基等のC1-C6鎖式炭化水素基等を表し、R2a、R3a、R4a及びR5aは同一又は相異なり、水素原子、1個以上のハロゲン原子を有していてもよいC1-C6鎖式炭化水素基等を表し、R6a及びR7aは同一又は相異なり、水素原子、トリフルオロメチル基、ハロゲン原子等を表し、nは0、1又は2を表す。]【選択図】なし
