Behavioral response of Aedes aegypti (Linnaeus, 1762) exposed to pyretrhoids insecticides of frequently use in public health
Journal Title: Revista Peruana de Medicina Experimental y Salud Publica - Year 2008, Vol 25, Issue 1
Abstract
[i][b]Objectives.[/b][/i] To assess the behavioural response of the F1 generation of [i]Aedes aegyti [/i](L) collected in the Metropolitan area of Monterrey (Nuevo Leon, Mexico) vs. three adulticides pyrethroids frequently used in public health. [i][b]Materials and methods.[/b][/i] We used a novel modular system called HITSS (High-Throughput Screening System) to evaluate two behavioral responses (contact irritation and spatial repellency), as well as the toxicity of three insecticides DDT, permeathrin and bifenthrin at different concentrations (0.025, 0.25, 25 and 250 nmol/cm2). [i][b]Results.[/b][/i] In the concentration 2.5 nmol/cm2, DDT (4.3 ± 2.4) and permethrin (8.0 ± 1.4) were the insecticides that are more irritating effect (p <0.05); the bifenthrin requires 20 times higher doses to achieve similar effects. In spatial repellency, the three insecticides tested have had a similar responses at all concentrations; DDT: 7 to 14%, permethrin: 9 to 15% and bifenthrin: 19% to 27%. Permethrin and bifenthrin in 0.025 nmol/cm2 concentrations, effects knockdown above 34%, with a mortality rate 19%, DDT requires 10 times higher concentrations to achieve similar effects. [b][i]Conclusions. [/i][/b]HITTS system can be used to assess the behavioural response to insecticides.
Authors and Affiliations
Yuri Ayala-Sulca , Luis Ibarra-Juárez, Jhon Grieco, Nicole Achee , Roberto Mercado-Hernández , Ildefonso Fernández-Salas
Keywords
Related Articles
- EP ID EP113018
- DOI -
- Views 88
- Downloads 0
Human filariosis in peruvian jungle: report of three cases.
We present three cases of male patients with filariasis from the Peruvian jungle (Junín, San Martín and Pucallpa). One case presented filariae in the eyeball and blood smears, which according to morphology, serology and...
La Revista Peruana de Medicina Experimental y Salud Pública en el año 2009.<br />
Native antigen of Aspergillus fumigatus with useful for immunodiagnosis of aspergilloma
In order to evaluate the usefulness of native antigens of autochthonous strains of Aspergillus fumigatus for immunodiagnosis of aspergilloma, We was conducted a study using two strains of this fungus, isolated from patie...
Política editorial ante la detección de una publicación redundante.
Conocimientos y prácticas sobre la nueva Influenza A (H1N1) en trabajadores de salud y pacientes ambulatorios, Perú (mayo 2009).
Con el objetivo de determinar el nivel de conocimientos, las actitudes y prácticas de los pacientes y del personal de salud a inicios de la pandemia de la nueva Influenza A H1N1, desarrollamos un estudio descriptivo de c...