Ahmed Tabbabi, Jabeur Daaboub

Department of Hygiene and Environmental Protection, Ministry of Public Health, Tunis, Tunisia.

Abstract

Background: Despite the public health importance of Anopheles (An.) labranchiae, their resistance status to temephos insecticide
has not, to our knowledge, been explored.
Objectives: The present study was carried out to determine the temephos resistance status of field populations of An. labranchiae from Tunisia.
Methods: Six field populations of An. labranchiae were collected as larvae from breeding sites of Northern and Central Tunisia.
All the tests were carried out according to the WHO method.
Results: Results reported that the majority of field populations showed low and medium resistance ratios (6.2<RR50< 29.8)
to temephos insecticide tested except for the strain # 1 which had interestingly a very high resistance with RR50 of 624 never
detected in Tunisia and North Africa even on other species of mosquitoes
Conclusion: The resistance ratios of this species were higher than recorded in other countries. Biochemical and molecular studies would be of great importance to identify the mechanisms involved in the recorded resistance to temephos.
Keywords: Anopheles labranchiae, temephos insecticide, Tunisia.

DOI: https://dx.doi.org/10.4314/ahs.v18i1.7

Cite as: Tabbabi A, Daaboub J. First studies showing high temephos resistance in Anopheles labranchiae (Diptera: Culicidae) from Tunisia. Afri Health Sci 2018;18(1): 41-47. https://dx.doi.org/10.4314/ahs.v18i1.7

First studies showing high temephos resistance in Anopheles.PDF