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

作者：dos Santos Dantas Anne Caroline; Araujo Andreina de Carvalho; Marques Pacheco Alessandra Gomes; Branco Alexsandro; Sangioni Luis Antonio^*; Guedes da Silva Almeida Jackson Roberto; Horta Mauricio Claudio

来源：Ciencia Rural, 2016, 46(3): 536-541.

DOI：10.1590/0103-8478cr20150334

• tick
• control
• acaricid
• phytotherapy

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 25 mg 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.

• 出版日期2016-5