Data/hora: 01/06/2024 13:45:18

Provedor de dados: | Ciência Rural
País: | Brazil
Título: | Acaricidal activity of Amburana cearensis on the cattle tick Rhipicephalus (Boophilus) microplus
Autores: | Dantas,Anne Caroline dos Santos; Araujo,Andreina de Carvalho; Pacheco,Alessandra Gomes Marques; Branco,Alexsandro; Sangioni,Luis Antônio; Almeida,Jackson Roberto Guedes da Silva; Horta,Mauricio Claudio.
Data: | 2016-03-01
Ano: | 2016
Palavras-chave: | Tick; Control; Acaricid; Phytotherapy.
Resumo: | ABSTRACT: This experiment was carried out to study the bioacaricidal activity of Amburana cearensis against engorged females of Rhipicephalus (Boophilus) microplus. The crude ethanolic extract from the leaves of A. cearensis was submitted to partition with organic solvents (hexane, chloroform and ethyl acetate) in order of increasing polarity; and evaluated using three treatments at concentrations of 5, 10 and 25mg ml-1. To evaluate the acaricidal activity, engorged females were submitted to the adult immersion test. Parameters analyzed were the weight of females; weight of egg mass; percentage of hatch; reproductive efficiency; expected rate of reproduction; and efficacy. For each extract and concentrating fraction, tests were performed in triplicate. Among all fractions, the hexane (2.5%) achieved the best results in all parameters analyzed: 52.7% of inhibition of oviposition; 39% of hatching rate; 3,271 index of reproductive efficiency; and 67.0% effectiveness. The extract obtained gradual dose response with increasing concentration; and could be used as an aid in the control of R. (B.) microplus therapy.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300536
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20150334
Formato: | text/html
Fonte: | Ciência Rural  v.46 n.3 2016
Fonte: | info:eu-repo/semantics/openAccess