Etofenprox is a non-ester pyrethroid insecticide.1 It induces toxicity in the housefly M. domestica (LD50 = 23 ng/fly). Etofenprox (0.005-0.02%) induces 100% mortality in green leafhopper adults and brown planthopper and white-backed planthopper nymphs on rice plants within 24 hours of application.2 It is toxic to the aquatic invertebrate D. magna (EC50 = 1.2 μg a.s./L) and the fish O. mykiss (LC50 = 2.7 μg a.s./L) but not rats (LD50 = >2,000 mg/kg).3 Formulations containing etofenprox have been used in the control of agricultural pests.
1.Pedersen, L.-E.K.The potency of cyclopropane pyrethroid ethers against susceptible and resistant strains of the house fly Musca domesticaExperientia42(9)1057-1058(1986) 2.Krishnaiah, N.V., and Kalode, M.B.Efficacy of ethofenprox against leafhoppers and planthoppers, with emphasis on preventing resurgence of brown planthopper, Nilaparvata lugens (St?l), in riceCrop Prot.12(7)532-538(1993) 3.Authority, E.F.S.Conclusion regarding the peer review of the pesticide risk assessment of the active substance etofenproxEFSA Scientific Report2131-131(2008)