Through the bioassays, it was verified the residual contact, ovicidal and persistence effects of the products chlorfenapyr and fenbutatin-oxide on two species of predaceous mites, Iphiseiodes zuluagai Denmark & Muma and Euseius alatus DeLeon (Acari: Phytoseiidae), associated to the citrus leprosis mite Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae). The adult total effect was studied through the residual spray contact method in glass surface, according to IOBC methodology. Ovicidal effect was evaluated through direct spray on the predators mite eggs, also in glass surface. Persistence of the products was evaluated, in laboratory conditions, in arenas made with sprayed orange leaves in the field at 0, 5, 15 and 30 days after the application. Results showed that chlorfenapyr was noxious to I. zuluagai and E. alatus, and fenbutatin-oxide was slightly harmful to E. alatus and innocuous to I. zuluagai. None of the products presented ovicidal effect. Fenbutatin-oxide presented low persistence to both predators mite species, and chlorfenapyr in the smallest rate (31.3 ml) was of low persistence and in the great one (62.5 ml) moderately persistent. Fenbutatin-oxide was innocuous and slightly harmful to the predaceous mites I. zuluagai and E. alatus, respectively, and of low persistence for both species
Iphiseiodes zuluagai; Euseius alatus; natural enemy; integrated pest management; Citrus spp.
