Produção Nacional
Revisado por pares
Acaricidal activity of extracts from the leaves and aerial parts of Neoglaziovia variegata (Bromeliaceae) on the cattle tick Rhipicephalus (Boophilus) microplus
2015; Elsevier BV; Volume: 100; Linguagem: Inglês
10.1016/j.rvsc.2015.04.012
ISSN1532-2661
AutoresA.C.S. Dantas, Dália Monique Ribeiro Machado, Andreina C. Araújo, Raimundo Gonçalves de Oliveira Júnior, Sarah Raquel Gomes de Lima-Saraiva, Luciano Augusto de Araújo Ribeiro, Jackson Roberto Guedes da Silva Almeida, Maurício Cláudio Horta,
Tópico(s)Plant Parasitism and Resistance
ResumoThis experiment was carried out to study the bioacaricidal activity of Neoglaziovia variegata against engorged females of Rhipicephalus (Boophilus) microplus. The mortality and fecundity of groups of engorged adult females exposed to different concentrations of ethanol, hexane, chloroform, and ethyl acetate extracts obtained from the leaves and aerial parts of N. variegata were evaluated, using three treatments with concentrations of 5, 10 e 25 mg/ml; two controls (distilled water and distilled water with drops of cremophor); with three replicates. The hexane extract of the leaves demonstrated significant results, presenting 94.1% inhibition of oviposition; 0.33% the average percentage of eclosion of eggs; and 99.8% of effectiveness. These results indicate N. variegata, particularly the hexane extract of leaves, as potential alternative control agents of R. (B.) microplus. Pharmacological and chemical studies are continuing in order to characterize the mechanism responsible for this effect.
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