Evaluation of commercial aerosol insecticides for control of Aedes aegypti susceptible or resistant to pyrethroids.

Autor: López-Solis AD; Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública. Tapachula, Chiapas, Mexico.. adlopez@insp.mx., Janich AJ; Colorado State University, College of Veterinary Medicine and Biomedical Sciences, Department of Microbiology, Immunology and Pathology, Arthropod Borne and Infectious Diseases Laboratory. Fort Collins, Colorado, USA.. ashley.janish15@alumni.colostate.edu., Solis-Santoyo F; Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública. Tapachula, Chiapas, Mexico.. fsolis@insp.mx., Ordóñez-González JG; Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública. Tapachula, Chiapas, Mexico.. jordonez@insp.mx., Fuentes-Maldonado G; Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública. Tapachula, Chiapas, Mexico.. penilla@insp.mx., Saavedra-Rodríguez K; Colorado State University, College of Veterinary Medicine and Biomedical Sciences, Department of Microbiology, Immunology and Pathology, Arthropod Borne and Infectious Diseases Laboratory. Fort Collins, Colorado, USA.. karla.saavedra_rodriguez@colostate.edu., Villarreal-Treviño C; Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública. Tapachula, Chiapas, Mexico.. cvilla@insp.mx., Black Iv WC; Colorado State University, College of Veterinary Medicine and Biomedical Sciences, Department of Microbiology, Immunology and Pathology, Arthropod Borne and Infectious Diseases Laboratory. Fort Collins, Colorado, USA.. wcb4@lamar.colostate.edu., Rodríguez AD; Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública. Tapachula, Chiapas, Mexico.. penilla@insp.mx., Penilla-Navarro RP; Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública. Tapachula, Chiapas, Mexico.. penilla@insp.mx.
Jazyk: angličtina
Zdroj: Salud publica de Mexico [Salud Publica Mex] 2023 Mar 10; Vol. 65 (2 mar-abr), pp. 151-159. Date of Electronic Publication: 2023 Mar 10.
DOI: 10.21149/14232
Abstrakt: Objective: To evaluate indoor use of commercial aerosols for dengue vector mosquito control, and estimate the number of treatable houses per can.
Materials and Methods: Four aerosol products containing combinations of pyrethroids (two containing propoxur and one containing synergists too), were evaluated with mosquitoes in a room of a Tapachulastyle house. Eight cages containing 20 insecticide susceptible or resistant females were hung from tripods, another set was placed in sheltered areas of the room. From the entrance of the room, one of 4-9 concentrations was sprayed for each aerosol, leaving the mosquitoes for 30 min after sprayed. Mortality was recorded after 24 h and lethal concentrations were calculated.
Results: Aerosol A had the highest LC50, with 0.308 g for mosquitoes hanging from tripods and 0.453 g for sheltered mosquitoes; followed by aerosols C, D and B, with statistical differences between types of exposure.
Conclusions: Aerosols B-D could spray 20-25 3-room houses (56 m3-room), killing all resistant mosquitoes. Aerosols may become a good tool for indoor mosquito control, if the optimal concentration and correct spray method are used.
Databáze: MEDLINE
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