Multiple insecticide resistance in Aedes aegypti (Diptera: Culicidae) populations compromises the effectiveness of dengue vector control in French Guiana
Mem. Inst. Oswaldo Cruz
;
106(3): 346-352, May 2011. ilus
Article
Dans Anglais
| LILACS
| ID: lil-589045
ABSTRACT
In French Guiana, pyrethroids and organophosphates have been used for many years against Aedes aegypti. We aimed to establish both the resistance level of Ae. aegypti and the ultra low volume spray efficacy to provide mosquito control services with practical information to implement vector control and resistance management. Resistance to deltamethrin and fenitrothion was observed. In addition, the profound loss of efficacy of AquaK'othrine® and the moderate loss of efficacy of Paluthion® 500 were recorded. Fenitrothion remained the most effective candidate for spatial application in French Guiana until its removal in December 2010. Further investigation of the mechanism of resistance to deltamethrin demonstrated the involvement of mixed-function oxidases and, to a lesser extent, of carboxylesterases. However, these observations alone cannot explain the level of insecticide resistance we observed during tube and cage tests.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Organophosphates
/
Pyréthrines
/
Résistance aux insecticides
/
Lutte contre les moustiques
/
Aedes
/
Insecticides
Limites du sujet:
Animaux
Pays comme sujet:
Amérique du Sud
/
Caraïbes anglaises
/
Guyane
/
Guinée française
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
2011
Type:
Article
Pays d'affiliation:
Guyane française
Institution/Pays d'affiliation:
Institut Pasteur de la Guyane/GF
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