Development of a novel acaricide, pyflubumide

Pyflubumide is a novel carboxanilide acaricide discovered and developed by Nihon Nohyaku Co., Ltd., that exhibits excellent acaricidal activity against Tetranychus and Panonychus species, including strains that have developed resistance to conventional acaricides. Its safety profile against non-target arthropods is suitable for integrated pest management (IPM) programs. Pyflubumide was registered and launched in Japan in 2015 and Korea in 2017. This paper describes pyflubumide's invention history, synthesis, exploratory synthesis, biological activity, toxicological profile, and mode of action.