Susceptibility of field-collected mosquitoes (Culex pipiens) in Northern Tunisia to temephos, an organophosphate insecticide
Journal Title: Asian Pacific Journal of Health Sciences - Year 2017, Vol 4, Issue 2
Abstract
In order to understand the resistance of Culex pipiens to temephos and provide parameters for management programs, we evaluated the susceptibility levels to temephos of individuals collected in five localities of Northern Tunisia. Our results showed that sample # 2 was susceptible. The resistant samples displayed RR50 ranged from 1.3 in sample # 5 to 440 in sample # 4. Mortality caused by propoxur ranged from 0% in sample # 4, which showed the highest resistance levels to studied temephos insecticide and indicated an important contribution of AChE 1, to 68% in sample # 5. Starch gel electrophoresis identified many esterases in studied samples with an important frequency (85%) in the sample # 4. This sample showed the highest resistance to temephos with a major contribution of CYP450, esterases, and AChE 1. Both detoxification mechanisms and target site alteration were involved in the resistance to temephos as reported in our study. This is not a new phenomenon in mosquitoes, in which multiple insecticide resistance mechanisms has been reported worldwide.
Authors and Affiliations
Ahmed Tabbabi
Keywords
Related Articles
- EP ID EP525801
- DOI 10.21276/apjhs.2017.4.2.26
- Views 180
- Downloads 0
Ethnomedicinal value and pharmacognosy of the member of Acanthaceae: Adhatoda vasica (Linn.)
Due to fewer side effects of herbal medicines, they have gained considerable importance in recent years. There is a booming business opportunity in herbal medicines market so it is important to tap the knowledge of our t...
Predictors of Post traumatic growth among breast cancer patients in Nepal
Objective: The main objective of this study is to investigate the prevalence, correlates and predictors of posttraumatic growth among breast cancer patients in Nepal. Method: A cross-sectional descriptive design was used...
Correlation of dental anxiety with oral health status among 12-15 year adolescents
Background:. Dental anxiety is considered to be the main reason for behavior management problems and avoiding dental care resulting in lack of regular dental care and delay in necessary treatments. Materials and method:....
Utility of ultrasonography in preanaesthetic airway assessment
Background: Better airway management during induction of anaesthesia can be predicted by systems like Cormack-Lehane (CL) grade. Aims and Objectives: To evaluate the utility of ultrasonography in preanaesthetic airway as...
Laurence Moon Bardet Biedl Syndrome-A Case Report
Laurence Moon Bardet Biedl Syndrome is a genetic abnormality associated with disorders like retinitis, obesity, polydactyl, learning disability. We report such a case in a 17 year old male patient.