Barrier spraying to control the malaria vector Anopheles albimanus: laboratory and field evaluation in the Dominican Republic
| Autor: | Williams Dc, Perich Mj, Michael R. Sardelis, M. A. Tidwell, A. Zaglul, S. E. Dobson |
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| Rok vydání: | 1993 |
| Předmět: |
Carbamate
Insecticides Mosquito Control medicine.medical_treatment Phenylcarbamates Bendiocarb Toxicology chemistry.chemical_compound Anopheles albimanus parasitic diseases Anopheles Nitriles Pyrethrins medicine Animals Ecology Evolution Behavior and Systematics Permethrin Analysis of Variance Pyrethroid General Veterinary biology Dose-Response Relationship Drug Dominican Republic biology.organism_classification Insect Vectors Malaria Deltamethrin chemistry Insect Science Malathion Parasitology Biological Assay Female Carbamates Ultra-low volume medicine.drug |
| Zdroj: | Medical and veterinary entomology. 7(4) |
| ISSN: | 0269-283X |
| Popis: | To develop a new strategy for control of exophilic/exophagic malaria vectors which rest on peridomestic foliage, Anopheles albimanus was used for laboratory bioassays of mosquito adulticides applied to various vegetation types. Of the three classes of insecticide tested, the pyrethroid (permethrin at 112 g/ha) showed greater foliar persistence than either the carbamate (bendiocarb at 340g/ha) or the organophosphorus compound (malathion at 277g/ha). Field evaluation of barrier spraying against An.albimanus was evaluated in rural villages of southwest Dominican Republic during 1989. The pyrethroid deltamethrin was sprayed aerially for ultra-low volume application at treatment rates of 17-19ga.i./ha in a radius of 500m around two villages. An.albimanus were monitored by light-traps and human bait collections at both treated villages, compared with two similar untreated villages, up to 9 nights post-treatment. Densities of female An.albimanus were significantly reduced in the sprayed villages for at least 8 or 9 nights. Further evaluation of barrier spraying is recommended to determine optimal pyrethroid formulations and applications rates, their impact on non-target fauna and efficacy against malaria transmission. |
| Databáze: | OpenAIRE |
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