Data/hora: 16/06/2024 06:41:04

Biblioteca(s): 	Embrapa Meio-Norte.	
Data corrente: 	15/08/2018	
Data da última atualização: 	16/05/2022	
Autoria: 	OLIVEIRA, P. R. de; ANHOLETO, L. A.; RODRIGUES, R. A. F.; BECHARA, G. H.; CASTRO, K. N. de C.; MATHIAS, M. I. C.	
Afiliação: 	PATRÍCIA ROSA DE OLIVEIRA; LUIS ADRIANO ANHOLETO; RODNEY ALEXANDRE FERREIRA RODRIGUES; GERVÁSIO HENRIQUE BECHARA; KARINA NEOOB DE CARVALHO CASTRO, CPAMN; MARIA IZABEL CAMARGO MATHIAS.	
Título: 	The potential of Acmella oleracea (Jambu) extract in the control of semi-engorged Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) female ticks.	
Ano de publicação: 	2018	
Fonte/Imprenta: 	International Journal of Acarology, v. 44, n. 4-5, p. 192-197, 2018.	
DOI: 	10.1080/01647954.2018.1472637	
Idioma: 	Inglês	
Notas: 	Published online: 04 Jun. 2018.	
Conteúdo: 	The present study evaluated the efficacy of Acmella oleracea extract, and the susceptibility of semiengorged R. sanguineus females exposed to different concentrations of the extract, with lethal concentration 50 % (LC50) and confidence interval 95%. The ticks were mounted on Petri dishes and immersed in the different concentrations of the extract, distilled water or ethanol 50% + DMSO 1% for 5 minutes, dried and kept in BOD incubator for 7 days. The results showed the daily mortality rate among semi-engorged R. sanguineus females at different concentrations of the extract. The mortality data obtained in bioassay 2 were subjected to Probit analysis, through which a LC50 of 24,883 mg/ml (limits: 22,331 to 28,003 mg/ml) was determined, at a 95% confidence interval. Thus, this study demonstrated the sensitivity and susceptibility of semi-engorged R. sanguineus females to Acmella oleracea extract. The acaricidal potential was effective as from the application of the extract at the concentration of 12.5 mg/ml and was dose-dependent. i.e., higher mortality rates were observed as the concentration increased, with LC50 of 24,883 mg/ml reaching 100% at the concentration of 100 mg/ml in 24h.	
Palavras-Chave: 	Composto natural; Extrato de Acmella oleracea.	
Thesagro: 	Carrapato.	
Categoria do assunto: 	X Pesquisa, Tecnologia e Engenharia	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/190589/1/Inter-Jour-Acar.pdf	
Registro original: 	Embrapa Meio-Norte (CPAMN)	
Exemplares: 	CPAMN - (32296-1) - UPC - AP - DD -  -  -  - DIS