Ação da deltametrina na dosagem de 0,8g/Há sobre o Aedes aegypti (Lin., 1762), na formulação de ultra-baixo-volume

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Data

1997-03

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Editor

Ruy de Souza Lino Junior

Resumo

aegypti to the action of deltamethrin, (1% concentration), applied in ultra-low volume, in different schedules in the dose of 0.8 g/Ha were performed. A LECO equipment attached to the back of a truck was utilized to apply the deltamethrin. Fifteen biological assays were carried out, with 24 cages, each containing 230 mosquitoes, placed at the house and at peridomiciliary environment. The mosquitoes were exposed in the "testareas" for about one hour. Another 36-hour períod of observation followed the transference of the mosquitoes from their exposition cages to the rest cages. For each assay, 200 mosquitoes were used as controls, and placed as far as 2 km from the test área. The dose of 0.8 g/Ha proved to be effícient on the killing of the Aedes aegypti. Females fed on blood were more resistant to deltamethrin than fasting ones. Males fed on sugar water were more resistant than the fasting ones, and these were more susceptible than females. The statement that only fed females should be used for pesticide susceptibility testing was confirmed, só these data may be used as guidelines for obtaining biological assays. The Aedes aegypti was killed more efficiently with deltamethrin between 12 p.m. and 6 p.m. There was a 0.9% mortality in the control group. The bioassays were carried out with a mean temperature of 27,5 ± 0,4°C, and 66,1 ± 2,5% relatíve air humidíty.

Descrição

Palavras-chave

Deltametrina, Inseticida, Aedes aegypti, Dengue, Deltamethrin, Insectícide, Aedes aegyptí, Dengue

Citação

FERNANDES, Fernando de Freitas; SILVA, Ionizete Garcia da; CAMARGO, Marlene de Fátima; ELIAS, Carmeci Natalina. Ação da deltametrina na dosagem de 0,8g/Há sobre o Aedes aegypti (Lin., 1762), na formulação de ultra-baixo-volume. Revista de Patologia Tropical, Goiânia, v. 26, n. 1, p. 37-45, jan./jun. 1997. Disponível em: <https://www.revistas.ufg.br/iptsp/article/view/17373/10406>.