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Bayer CropScience K.K. (Japan)

Bayer CropScience K.K. is a Japanese agrochemical company developing, manufacturing, and selling pesticides and hygiene agents.

Last updated September 1, 2026

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Overview

Bayer CropScience K.K. (バイエル クロップサイエンス株式会社) is a Japanese company headquartered in Tokyo. It was established in 1941 as Nihon Tokushu Noyaku Seizo K.K. and has undergone several name changes and mergers. It is a wholly owned subsidiary of Bayer Holding Co., Ltd. The company develops, manufactures, imports, exports, and sells agrochemicals and hygiene agents. It operates development bases in Yuki and Kochi, and a production base in Hofu.

History

The company was established in 1941 as Nihon Tokushu Noyaku Seizo K.K. In 1991, it changed its name to Nihon Bayer Agrochem K.K. In 2002, it merged with Aventis CropScience Shionogi K.K. and changed its name to Bayer CropScience K.K. In 2020, it integrated the business of Monsanto Japan K.K. It has development bases in Yuki and Kochi, and a production base in Hofu.

Products and positioning

  • Routine

    Rice fungicide

  • Bodega

    Rice herbicide

  • Possible

    Rice herbicide

  • Danigetter

    Acaricide

  • Reliable

    Fungicide

  • Kirap

    Insecticide

  • Daniemon

    Acaricide

  • Inova

    Rice herbicide containing fentrazamide

  • Admire

    Insecticide containing imidacloprid

  • Mr. Joker

    Insecticide

  • Prince

    Insecticide

  • Zark

    Rice herbicide containing mefenacet

  • Monceren

    Fungicide

  • Basta

    Herbicide

  • Rovral

    Fungicide

  • Ditrapex

    Soil fumigant

  • Tokuthion

    Insecticide

  • Hinodan

    Rice blast control agent

  • Ceresan Lime

    Rice blast control agent

  • Holidol

    Rice insecticide

Sources4 sources

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