Tehran University of Medical Sciences Journal of Arthropod-Borne Diseases 2322-1984 10 4 2016 10 24 510 518 EN Mohammad Reza Abai Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Ahmad Ali Hanafi-Bojd Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Hassan Vatandoost Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. 2015 12 05 2015 12 05 Background: Malaria is still a health problem in Iran. There are several vector control activities, including Indoor Residual spraying, using insecticide treated nets and larviciding including Temephos. In addition nuisance mosquitos are prevalent in the urban areas. So that evaluation of this species to larvicide will provide a clue for management of vector control activities. Methods: Two mosquito species were used in this study: Anopheles stephensi were collected from Kazeroun and Culex pipiens from Tehran, capital of Iran. All the tests were carried out according to the WHO method. All the test kis was provided by WHO. Results: Results showed a LC50= 0.0523 and LC90=0.3822 mg/l for An. stephensi. The figure for Cx. pipiens was 0.1838 and 0.8505 mg/l respectively. Conclusions: monitoring of insecticide resistance to Temephos should be evaluated regularly for management of vector control. https://jad.tums.ac.ir/index.php/jad/article/view/336 https://jad.tums.ac.ir/index.php/jad/article/download/336/292