Tehran University of Medical Sciences Journal of Arthropod-Borne Diseases 2322-1984 2 1 2008 06 15 1 6 EN S Sulaiman Department of Biomedical Science, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul aziz 50300 Kuala Lumpur, Malaysia Sh Hidayatul Department of Parasitology and Medical Entomology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz 50300 Kuala Lumpur, Malaysia Mustakim Syed-Mustaffa Department of Biomedical Science, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul aziz 50300 Kuala Lumpur, Malaysia J Jeffery Department of Parasitology and Medical Entomology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz 50300 Kuala Lumpur, Malaysia 2015 10 03 Background:  The residual effect of triflumuron and pyriproxyfen on Musca domestica L larval stages was studied in the laboratory. Methods: Both IGRs at varying concentrations ranging between 0.5 to 2.5 mg/L were placed inside beakers with mice chow and vitamin B complex and water as food for the 1st, 2nd and 3rd instars M.domestica larvae. Results: Both IGRs inhibit M. domestica adult emergence of 98-98.5% when applied at the lowest concentration of 0.5 mg/L on the 1st instar, 93-97% of adult emergence inhibition on the 2nd instar,and 91-97% of adult emergence inhibi­tion on the 3rd instar larvae respectively. There was no significant difference between triflumuron and pyriproxy­fen on house­fly adult emergence inhibition when fed to the 1st, 2nd and 3rd instars M.domestica larvae (P> 0.05). However, there was a significant difference between the IGRs and the control (P< 0.05). Conclusion: Both triflumuron and pyriproxyfen are effective in inhibiting adult emergence of housefly M  domes­tica and therefore should be recommended for fly control particularly in chicken farms and dumping grounds in Malaysia for housefly control activities. https://jad.tums.ac.ir/index.php/jad/article/view/20 https://jad.tums.ac.ir/index.php/jad/article/download/20/18