Susceptibility of immature stages of Aedes (Stegomyia) aegypti; vector of dengue and chikungunya to insecticides from India

Autor(es): Tikar S N, Mendki M J, Chandel K, Parashar B D, Prakash Shri


Resumo: Susceptibility of Aedes aegypti to some insecticides in different geographic areas was conducted during dengue - chikungunya outbreak. At present, the only method of preventing dengue - chikungunya is to control the vector, which is the weakest link in vector-borne diseases. In our study, the susceptibility of A. aegypti collected from urban areas of Delhi, Mumbai, Jodhpur, Chennai - Coimbatore was evaluated against temephos, fenthion, malathion - DDT. The A. aegypti from different locations exhibited 0.33-7.11, 0.36-3.00, 0.65-2.84 - 2.16-20.8 fold more lethal concentration value of 50% (LC50) to temephos, fenthion, malathion - DDT, respectively, compared to susceptible reference strain. The result reveals that A. aegypti from various locations studied are still susceptible to temephos, fenthion - malathion, whereas low level of DDT resistance was noticed in field-collected A. aegypti. Amongst the insecticides tested, temephos was found to be relatively more effective in controlling A. aegypti, followed by fenthion, malathion - DDT.


Imprenta: Parasitology Research, v. 102, n. 5, p. 907-913, 2008


Identificador do objeto digital: 10.1007/s00436-007-0848-5


Descritores: Chikungunya virus - Flaviviridae ; Chikungunya virus - Pathogenesis ; Chikungunya virus - Viral infections ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Dengue ; Chikungunya virus - Public health


Data de publicação: 2008