PROBLEM TO BE SOLVED: To provide a composition which has an excellent controlling effect on noxious arthropods.SOLUTION: A noxious arthropod control composition contains, as an active ingredient, a heterocyclic compound represented by formula (1)[wherein A1 and A2 independently represent =CH-, a nitrogen atom, or the like R1 represents a halogen atom, or the like R3 and R4 independently represent an optionally substituted C1 to C4 linear hydrocarbon group, or the like R5 represents a hydrogen atom, or the like and n represents 0 or 1], and the noxious arthropod control composition has an excellent controlling effect on noxious arthropods.COPYRIGHT: (C)2012,JPO&INPIT【課題】有害節足動物に対して優れた防除効力を有する組成物を提供する。【解決手段】式(1)〔式中、A1およびA2は=CH-、窒素等を表し、R1はハロゲン等を表し、R2は水素等を表し、R3およびR4は置換されていてもよいC1-C4鎖式炭化水素基等を表し、R5は水素等を表し、nは0または1を表す。〕で示される複素環化合物を有効成分として含有する有害節足動物防除粗製物は優れた有害節足動物防除効力を有する。【選択図】なし
