Indoor use of plastic sheeting impregnated with carbamate combined with long-lasting insecticidal mosquito nets for the control of pyrethroid-resistant malaria vectors
The combined efficacy of a long-lasting insecticidal net (LLIN) and a carbamate-treated plastic sheeting (CTPS) or indoor residual spraying (IRS) for control of insecticide-resistant mosquitoes was evaluated in experimental huts in Burkina Faso. Anopheles gambiae from the area is resistant to pyrethroids and to a lesser extent, carbamates. Relatively low mortality rates were observed with the LLIN (44%), IRS (42%), and CTPS (52%), whereas both combinations killed significantly more mosquitoes (~70% for LLIN + CTPS and LLIN + IRS). Blood feeding by An. gambiae was uninhibited by IRS and CTPS compared with LLIN (43%), LLIN + CTPS (58%), and LLIN + IRS (56%). No evidence for selection of the kdr and ace-1R alleles was observed with the combinations, whereas a survival advantage of mosquitoes bearing the ace-1R mutation was observed with IRS and CTPS. The results suggest that the combination of the two interventions constitutes a potential tool for vector-resistance management.
| Main Authors: | , , , , , , , |
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| Format: | article biblioteca |
| Language: | eng |
| Subjects: | L72 - Organismes nuisibles des animaux, L73 - Maladies des animaux, Anopheles gambiae, malaria, pyréthrine, carbamate, résistance aux pesticides, http://aims.fao.org/aos/agrovoc/c_30508, http://aims.fao.org/aos/agrovoc/c_34312, http://aims.fao.org/aos/agrovoc/c_6383, http://aims.fao.org/aos/agrovoc/c_1296, http://aims.fao.org/aos/agrovoc/c_25427, http://aims.fao.org/aos/agrovoc/c_8081, |
| Online Access: | http://agritrop.cirad.fr/572730/ http://agritrop.cirad.fr/572730/1/document_572730.pdf |
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