Aedes aegypti resistance to temephos during 2001 in several municipalities in the states of Rio de Janeiro, Sergipe, and Alagoas, Brazil

Abstract

16.8 (São Gonçalo, RJ and Penha district, Rio de Janeiro, RJ). The national dengue control program is presently using these data to subside insecticide resistance management.

Larvicidal activity of oil-resin fractions from the Brazilian medicinal plant Copaifera reticulata Ducke (Leguminosae-Caesalpinoideae) against Aedes aegypti (Diptera, Culicidae)

“…The results described in the present paper suggest that some oil-resin fractions (CRM [1][2][3][4] and CRM 5-7 ) of Copaifera reticulata are comparatively more active against Aedes aegypti larvae. These results encourage the search for new natural larvicides.…”

“…CRM 1 , which was 11 times more active than the oil-resin, consisted mainly of sesquiterpenoids from the caryophyllene, bisabolane, cadinane and copaene groups. It was refractioned to give, among other subfractions, CRM [1][2][3][4] with an LC 50 of 0.2ppm and an NMR spectrum that confirmed the presence of sesquiterpenoids (Table 2). CRM 5 was rather less active than the oil-resin and, on further fractionation, gave the subfraction CRM [5][6][7] with an LC 50 of 0.8ppm, such that the TLC and NMR ( 1 H and 13 C) data showed the presence of clerodane and labdane diterpenoids ( Table 2).…”

Alterações ultraestruturais em larvas de Aedes aegypti submetidas ao diterpeno labdano, isolado de Copaifera reticulata (Leguminosae), e à uma fração rica em taninos de Magonia pubescens (Sapindaceae)

“…Dentre as ferramentas utilizadas, a mais prática e rápida tem sido a aplicação de inseticidas sintéticos. A pressão constante desses produtos tem levado ao aparecimento de resistência do mosquito a esses compostos [7][8][9][10] .…”

Resistência do Aedes aegypti ao temefós em Municípios do Estado do Ceará

“…O fenômeno de resistência do A. aegypti a organofosforados já foi documentado em várias localidades do mundo, tais como: Cuba 14 , Caribe 12 , Venezuela 13 e Ilhas Virgens 15 . No Brasil, a resistência a este inseticida já foi detectada em São Paulo 6 , Campo Grande, MS 2 , Distrito Federal 3 ; Rio de Janeiro, Sergipe e Alagoas 1 .…”