Tools
Tools
Parsons, George, Lees, Rosemary 
ORCID: https://orcid.org/0000-0002-4232-9125, Balaska, Sofia and Vontas, John
(2022)
'A Practical Insecticide Resistance Monitoring Bioassay for
Orally Ingested Dinotefuran in Anopheles Malaria Vectors'. Insects, Vol 13, Issue 4, e311.
|
Text
insects-13-00311 Parsons IRM bioassay for orally ingested dinotefuran.pdf - Published Version Available under License Creative Commons Attribution. Download (3MB) | Preview |
Abstract
Attractive Toxic Sugar Baits (ATSB) deployed outdoors are likely to be particularly effective against outdoor biting mosquitoes and, if they contain insecticides with a different mode of action, mosquitoes resistant to pyrethroids. One such ATSB based on the neonicotinoid dinotefuran is currently under evaluation in Africa. As with any insecticide-based intervention, it will be important to monitor for the possible emergence of vector resistance. While methods for detecting resistance to insecticides via tarsal contact are recommended by the World Health Organization (WHO), these may not be applicable for orally ingested insecticides. Here, a new ingestion assay, appropriate for a controlled laboratory setting, is described using fluorescein sodium salt (uranine) as a feeding marker. Conventional topical application bioassays, more appropriate for routine deployment, have also been used to apply dinotefuran to the thorax of adult Anopheles mosquitoes with an organic carrier to bypass lipid cuticle barriers. The two methods were compared by establishing lethal doses (LD) in several Anopheles strains. The similarity of the ratios of susceptibility to dinotefuran between pairs of pyrethroid susceptible and resistant strains validates topical application as a suitable, more practical and field applicable method for monitoring for the emergence of resistance to orally ingested dinotefuran. A discriminating dose is proposed, which will be further validated against field populations and used to routinely monitor for the emergence of resistance alongside ATSB trials
| Item Type: | Article |
|---|---|
| Subjects: | QX Parasitology > QX 20 Research (General) QX Parasitology > Insects. Other Parasites > QX 515 Anopheles QX Parasitology > Insects. Other Parasites > QX 600 Insect control. Tick control WC Communicable Diseases > Tropical and Parasitic Diseases > WC 750 Malaria WC Communicable Diseases > Tropical and Parasitic Diseases > WC 765 Prevention and control |
| Faculty: Department: | Biological Sciences > Vector Biology Department |
| Digital Object Identifer (DOI): | https://doi.org/10.3390/insects13040311 |
| Depositing User: | Samantha Sheldrake |
| Date Deposited: | 28 Mar 2022 11:05 |
| Last Modified: | 28 Mar 2022 11:05 |
| URI: | https://archive.lstmed.ac.uk/id/eprint/20168 |
Statistics
Actions (login required)
 |
Edit Item |