Biotratamento de Rhipicephalus sanguineus (LATREILLE, 1806) com extratos obtidos de fungos basidiomicetos do baixo Amazonas

Abstract

The Rhipicephalus genus occurs throughout the Neotropical Region, predominantly in urban areas affects approximately 30% of dogs, and the species of most widely distributed tick in the world and is present on every continent inhabited by humans and domestic dogs. In Brazil, the tick is found in all states and, its control and of others of economic importance to public health, is based solely on the use of chemical acaricides, fact that associated with overuse and without criteria, led to development of resistant strains. Given these facts, the objective of this study is to evaluate the potential of acaricide extract obtained from the Carpophorus Amazon strain of Pycnoporus sanguineus seeking alternatives and cost-effective ways to control the species. The extracts were obtained from extractors, aqueous and alcoholic in the cold process. Was used solutions of extract aqueous and alcoholic at concentrations of 1, 5, 10 and 20 mg. mL. in immersion test on engorged female ticks of Rhipicephalus sanguineus and then was evaluated the oviposition rates and reproductive efficiency. Results showed a significant decrease in oviposition rate around 72%, and playback control ranging from 84% to 100% at a concentration of greater efficiency, 20mg / ml of alcoholic extract. It is concluded that the bioactive compounds P. sanguineus may be a promising alternative in the control of canine tick. Keywords: Pycnoporus sanguineus, Amazon fungi basidiomycetes, antifungal extracts, canine tick.