RESUMO
Resumen Más de la mitad de la población humana está expuesta a contraer infecciones transmitidas por mosquitos. El cambio climático y la aparición de cepas resistentes a los insecticidas tradicionalmente utilizados han motivado la búsqueda de nuevos agentes capaces de controlar las poblaciones de mosquitos. Los aceites esenciales han resultado ser eficaces agentes repelentes y larvicidas. El objetivo de este trabajo fue revisar las investigaciones llevadas a cabo en los últimos años sobre la actividad larvicida de los aceites esenciales y sus componentes contra mosquitos de los géneros Aedes, Anopheles y Culex, así como los últimos reportes sobre su posible mecanismo de acción.
Abstract More than half of the human population is exposed to mosquito-borne infections. Climate change and the emergence of strains resistant to traditionally used insecticides have motivated the search of new agents for mosquito population control. Essential oils have been effective repellents and larvicidal agents. The aim of this work was to review research studies conducted in recent years on the larvicidal activity of essential oils and their components against Aedes, Anopheles and Culex mosquitoes, as well as the latest reports about their possible mechanism of action.
Assuntos
Animais , Óleos de Plantas , Óleos Voláteis , Mosquitos Vetores , Repelentes de Insetos , Inseticidas , Relação Estrutura-Atividade , Mudança Climática , Simulação por Computador , Óleos de Plantas/farmacologia , Óleos de Plantas/química , Resistência a Inseticidas , Óleos Voláteis/farmacologia , Óleos Voláteis/química , Estrutura Molecular , Modelos Moleculares , Controle de Mosquitos , Aedes/crescimento & desenvolvimento , Culex/crescimento & desenvolvimento , Interações Medicamentosas , Distribuição Animal , Larva , Anopheles/crescimento & desenvolvimentoRESUMO
Searching for morphometric differences between sexes in immature forms, the development of genital plates in the exuviae of Triatoma pallidipennis StÖl 1872nymphs was studied. Differences were found in the form and size of the 9th genital urosternite, it is larger and wider in males as compared to females. This difference is reported in several South American Triatoma species. From our results it is possible to sex early stages from microscopic observation of genital plates in whole insects