Data/hora: 05/06/2024 01:18:14

Provedor de dados: 	36	
País: 	Brazil	
Título: 	Analysis of toxicity on Bacillus sphaericus from amazonian soils to Anopheles darlingi and Culex quinquefasciatus larvae	
Autores: 	Litaiff,Eleilza de Castro; Tadei,Wanderli Pedro; Porto,Jorge Ivan Rebelo; Oliveira,Ila Maria de Aguiar.	
Data: 	2008-01-01	
Ano: 	2008	
Palavras-chave: 	Vector control; Bioassays; Biolarvicides; Amazonian; Entomopathogens.	
Resumo: 	Bioassays under laboratory conditions aiming to determine the larvicidal activity of Bacillus sphaericus were carried out on Anopheles darlingi and Culex quinquefasciatus. In order to estimate the toxicity through median lethal concentration (LC50) and the relative potency of the strains to B. sphaericus standard strain 2362, probit analysis was performed utilizing the POLO-PC program. The findings of LC50 pointed out high effectiveness on strains IB15 (0.040 ppm), IB19 and S1116 (0.048 ppm), IB16 (0.052 ppm) and S265 (0.057 ppm). Strain IB15 presented nearly 50% more potency than strain 2362 in bioassays conducted on A. darlingi. It was observed that IB16 and S1116 strains were the most powerful against C. quinquefasciatus, showing to be about 300-400% stronger than 2362 strain. The results show that laboratory conditioned evaluation can be an important way to select promising bacteria with entomopathogenic action on biolarvicides production for use on mosquitoes breeding sites.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000200008	
Editor: 	Instituto Nacional de Pesquisas da Amazônia	
Relação: 	10.1590/S0044-59672008000200008	
Formato: 	text/html	
Fonte: 	Acta Amazonica  v.38 n.2 2008	
Fonte: 	info:eu-repo/semantics/openAccess