Baseline Susceptibility of Culiseta longiareolata (Diptera: Culicidae) to Different Imagicides, in Eastern Azerbaijan, Iran

is an important vector for many human diseases such as brucellosis, avian influenza and West Nile encephalitis. It is likely an intermediate host of avian that can transmit Malta fever. The aim of this study was to determine the susceptibility level of to different classes of imagicides which are recommended by World Health Organization . Larval stages of the were collected from their natural habitats in Marand County at East Azerbaijan Province, northwestern of Iran in 2017. Adult susceptibility test were carried out with using impregnated papers to insecticides including DDT 4%, Cyfluthrin 0.15%, Deltamethrin 0.05%, Propoxur 0.1% and Fenitrothion 1% by standard test kits. Results showed that adult is more susceptible to pyrethroid and carbamate insecticides. Among tested insecticides, Cyfluthrin was the most toxic against with LT value of 11.53 minutes and Fenitrothion had the least toxic effect (LT : 63.39 min). This study provided a guideline for monitoring and evaluation of insecticide susceptibility tests against mosquitoes for further decision making.