| [efficacy of extracts of plants in engorged females of boophilus microplus from the mesoregion west of maranhão, brazil.]. | the objective was to evaluate the efficacy of hydro-alcoholic extracts of nim and citronela at 20% and eucalipto at 10% in boophilus microplus engorged females collected in cattle naturally infected from the mesoregion west of maranhão. at the laboratory the females were separated, weighted and distributed in six groups of 10, in duplicate. each group was immersed in 10ml of the solution of the extracts, for two minutes. in the nim and citronela extracts there was 32% e 17%, respectively, while ... | 2008 | 20059822 |