Efficacy of mosquito nets treated with a pyrethroid-organophosphorous mixture against Kdr- and Kdr+ malaria vectors (Anopheles gambiae)
In order to prevent the resistance of Anopheles gambiae s.l. to pyrethroids from spreading too quickly and to lengthen the effectiveness of insecticide impregnated mosquito nets, it has recently been suggested to use mixtures of insecticides that have different modes of action. This study presents t...
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Format: | Article |
Language: | English |
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EDP Sciences
2003-12-01
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Series: | Parasite |
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Online Access: | http://dx.doi.org/10.1051/parasite/2003104359 |
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author | Darriet F. Corbel V. Hougard J.M. |
author_facet | Darriet F. Corbel V. Hougard J.M. |
author_sort | Darriet F. |
collection | DOAJ |
description | In order to prevent the resistance of Anopheles gambiae s.l. to pyrethroids from spreading too quickly and to lengthen the effectiveness of insecticide impregnated mosquito nets, it has recently been suggested to use mixtures of insecticides that have different modes of action. This study presents the results obtained with tulle mosquito nets treated with bifenthrin (a pyrethroid] and chlorpyrifos-methyl (an organophosphorous) both separately and in mixture on two strains of An. gambiae, one sensitive to all insecticides, and the other resistant to pyrethroids. The values of KDt50 and KDt95 and the mortality induced with the mixture of bifenthrin (25 mg/m2 ) and chlorpyrifos-methyl (4.5 mg/m2 ) show a significant synergistic effect on the strain of An. gambiae susceptible to insecticides. However, the tested combination does not induce any synergistic effect on the VKPR strain selected with permethrin, but only enhances the effectiveness of the two insecticides taken separately. |
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institution | Directory Open Access Journal |
issn | 1252-607X 1776-1042 |
language | English |
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publishDate | 2003-12-01 |
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spelling | doaj.art-b0c5714fd7824adc86439bbd766c51072023-12-03T04:30:28ZengEDP SciencesParasite1252-607X1776-10422003-12-0110435936210.1051/parasite/2003104359parasite2003104p359Efficacy of mosquito nets treated with a pyrethroid-organophosphorous mixture against Kdr- and Kdr+ malaria vectors (Anopheles gambiae)Darriet F.Corbel V.Hougard J.M.In order to prevent the resistance of Anopheles gambiae s.l. to pyrethroids from spreading too quickly and to lengthen the effectiveness of insecticide impregnated mosquito nets, it has recently been suggested to use mixtures of insecticides that have different modes of action. This study presents the results obtained with tulle mosquito nets treated with bifenthrin (a pyrethroid] and chlorpyrifos-methyl (an organophosphorous) both separately and in mixture on two strains of An. gambiae, one sensitive to all insecticides, and the other resistant to pyrethroids. The values of KDt50 and KDt95 and the mortality induced with the mixture of bifenthrin (25 mg/m2 ) and chlorpyrifos-methyl (4.5 mg/m2 ) show a significant synergistic effect on the strain of An. gambiae susceptible to insecticides. However, the tested combination does not induce any synergistic effect on the VKPR strain selected with permethrin, but only enhances the effectiveness of the two insecticides taken separately.http://dx.doi.org/10.1051/parasite/2003104359bifenthrinchlorpyrifos-methylsynergymosquito netAnophelesgambiae |
spellingShingle | Darriet F. Corbel V. Hougard J.M. Efficacy of mosquito nets treated with a pyrethroid-organophosphorous mixture against Kdr- and Kdr+ malaria vectors (Anopheles gambiae) Parasite bifenthrin chlorpyrifos-methyl synergy mosquito net Anophelesgambiae |
title | Efficacy of mosquito nets treated with a pyrethroid-organophosphorous mixture against Kdr- and Kdr+ malaria vectors (Anopheles gambiae) |
title_full | Efficacy of mosquito nets treated with a pyrethroid-organophosphorous mixture against Kdr- and Kdr+ malaria vectors (Anopheles gambiae) |
title_fullStr | Efficacy of mosquito nets treated with a pyrethroid-organophosphorous mixture against Kdr- and Kdr+ malaria vectors (Anopheles gambiae) |
title_full_unstemmed | Efficacy of mosquito nets treated with a pyrethroid-organophosphorous mixture against Kdr- and Kdr+ malaria vectors (Anopheles gambiae) |
title_short | Efficacy of mosquito nets treated with a pyrethroid-organophosphorous mixture against Kdr- and Kdr+ malaria vectors (Anopheles gambiae) |
title_sort | efficacy of mosquito nets treated with a pyrethroid organophosphorous mixture against kdr and kdr malaria vectors anopheles gambiae |
topic | bifenthrin chlorpyrifos-methyl synergy mosquito net Anophelesgambiae |
url | http://dx.doi.org/10.1051/parasite/2003104359 |
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