Autor(es): Barbosa, Rosangela M. R.; Furtado, Andre; Regis, Leda; Leal, Walter S.

Resumo: A synthetic mixture of an oviposition-stimulating kairomone for the yellow fever mosquito, Aedes aegypti, comprising of 83% tetradecanoic acid, 16% nonanoic acid and 1% tetradecanoic acid methyl ester (NTT, in short) was tested in a dengue endemic area in Recife, Brazil. Gravid female mosquitoes confined to a cage under semi-field conditions deposited significantly higher numbers of eggs in traps baited with NTT at doses ranging from 0.6 to 600 ng/mu l than in control (water) traps. When tested in homes, egg-laying in traps baited with 60 ng NTT/mu l (final concentration in trap, approximate to 3.33 ng/ml) and in control traps was not significantly different, but egg deposited in traps with lower dosage (6 ng NTT/mu l; final concentration in trap, approximate to 0.33 ng/ml) was significantly higher than in control traps. In subsequent trials, the numbers of eggs laid in traps baited with 0.6 ng NTT/mu l (final concentration in trap, approximate to 0.033 ng/ml) were not significantly different from the numbers deposited in trap loaded with 6 ng NTT/mu l. Egg-laying was significantly higher in these treatments than in control traps. Journal of Vector Ecology 35 (1): 204-207. 2010.

Palavras-Chave: Ovitrap; Tetradecanoic acid; Myristic acid; Nonanoic acid; Methyl myristate; Tetradecanoic acid methyl ester

Imprenta: Journal of Vector Ecology, v. 35, n. 1, p. 204-207, 2010

Descritores: Aedes aegypti - Biochemistry ; Aedes aegypti - Public health

Data de publicação: 2010

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