Détails Publication
Essential oils of plants and their combinations as an alternative adulticides against Anopheles gambiae (Diptera: Culicidae) populations,
Auteur(s): Mahamoudou Balboné, Ignace Sawadogo, Dieudonné Diloma Soma, Samuel Fogné Drabo, Moussa Namountougou, Koama Bayili, Rahim Romba, Georges Benson Meda, Honorat Charles Roger Nebié, Roch K. Dabire, Imaël H. N. Bassolé & Olivier Gnankine
Renseignée par : DRABO Samuel Fogné
Résumé

The persistence of malaria and the increasing of resistance of Anopheles gambiae species to chemicals remain major public health concerns in sub-Saharan Africa. Faced to these concerns, the search for alternative vector control strategies as use of essential oils (EOs) need to be implemented. Here, the five EOs from Cymbopogon citratus, Cymbopogon nardus, Eucalyptus camaldulensis, Lippia multiflora, Ocimum americanum obtained by hydro distillation were tested according to World Health Organization procedures on An. gambiae “Kisumu” and field strains collected in “Vallée du Kou”. Also, the binary combinations of C. nardus (Cn) and O. americanum (Oa) were examined. As results, among the EOs tested, L. multiflora was the most efficient on both An. gambiae strains regarding KDT50 (50% of mosquitoes knock down time) and KDT95 and rate of morality values. Our current study showed that C8 (Cn 80%: Oa 20%) and C9 (Cn 90%: Oa 10%), were the most toxic to An. gambiae strain “Vallée de Kou” (VK) with the mortality rates reaching 80.7 and 100% at 1% concentration, respectively. These two binary combinations shown a synergistic effect on the susceptible population. However, only C9 gave a synergistic effect on VK population. The bioactivity of the two EOs, C. nardus and O. americanum, was improved by the combinations at certain proportions. The resistance ratios of all EOs and of the combinations were low (

Mots-clés

resistance, essential oil, combination, major compound

939
Enseignants
5607
Publications
49
Laboratoires
84
Projets