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
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
Flagship businesses
- Routine
- Bodega
- Possible
- Danigetter
- Reliable
- Kirap
- Daniemon
- Inova
- Admire
- Mr. Joker
- Prince
- Zark
Sources
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