PROBLEM TO BE SOLVED: To provide a novel agricultural agent effective even against pests having resistance to existing agents.SOLUTION: There are provided a 1-(2-pyridyl)pyrazole derivative represented by the following formula (1), N-oxide thereof or a salt thereof and an agricultural agent containing the derivative, preferably an insecticide, a miticide, a nematicide or a microbicide. (1), where Ris Calkyl or the like, Rto Rare each independently H, Calkyl or the like, Xs are the same or different to represent H, a halogen atom, Calkyl, Chaloalkyl, Calkoxy, Chaloalkoxy, Calkylthio, Calkylsulfonyl, Chaloalkylthio, nitro, cyano or the like, Y is H, a halogen atom or Calkyl, n is an integer of 1 to 4 and m is an integer of 1 to 2.SELECTED DRAWING: None【課題】既存薬に抵抗性を有する病害虫に対しても有効な新規農園芸用薬剤の提供。【解決手段】下式（１）で表される１－（２－ピリジル）ピラゾール誘導体、そのＮ－オキシド又はその塩、及び前記誘導体を含有する農園芸用薬剤（好ましくは、殺虫剤、殺ダニ剤、殺線虫剤又は殺菌剤）。［Ｒ１はＣ１－１２アルキル等を；Ｒ２～Ｒ４は各々独立にＨ、Ｃ１－１２アルキル等を；Ｘは同一又は異なって、Ｈ、ハロゲン原子、Ｃ１－１２アルキル、Ｃ１－１２ハロアルキル、Ｃ１－６アルコキシ、Ｃ１－６ハロアルコキシ、Ｃ１－６アルキルチオ、Ｃ１－６アルキルスルホニル、Ｃ１－６ハロアルキルチオ、ニトロ、シアノ等；ＹはＨ、ハロゲン原子又はＣ１－６アルキル；ｎは１～４の整数；ｍは１～２の整数］【選択図】なし
