Insect growth regulator. Prepn: U. Fischer et al., EP 4334; eidem, US 4215139 (1979, 1980 both to Hoffmann-La Roche). Insecticidal properties: S. Dorn et al., Z. Pflanzenkrankh. Pflanzenschutz 88, 269 (1981). Field trials, persistence in water, and bioaccumulation in fish: C. H. Schaefer et al., J. Econ. Entomol. 80, 126 (1987).