Acaricidal activity of Amburana cearensis on the cattle tick Rhipicephalus (Boophilus) microplus

Ciência Rural

Almeida, Jackson Roberto Guedes da Silva²  Araujo, Andreina de Carvalho²  Sangioni, Luis Antônio³  Dantas, Anne Caroline dos Santos²  Pacheco, Alessandra Gomes Marques¹  Horta, Mauricio Claudio²  Branco, Alexsandro¹ 

[1] Universidade Estadual de Feira de Santana, Feira de Santana, Brazil;Universidade Federal do Vale do São Francisco, Petrolina, Brazil;Universidade Federal de Santa Maria, Santa Maria, Brazil

关键词:  tick;    control;    acaricid;    phytotherapyRESUMO:O objetivo deste estudo foi avaliar a atividade acaricida in vitro de Amburana cearensis contra fêmeas ingurgitadas de Rhipicephalus (Boophilus) microplus;   

DOI  :  10.1590/0103-8478cr20150334

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

: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.

【 授权许可】

Unknown