Resumo

GARCIA-CORREDOR, Diego José et al. In vitro evaluation of Cordyceps bassiana (Ascomycota: Sordariomycetes) in the biogical control of Rhipicephalus microplus. Rev. investig. vet. Perú [online]. 2016, vol.27, n.1, pp.130-136. ISSN 1609-9117.  http://dx.doi.org/10.15381/rivep.v27i1.11467.

The aim of the present study was to evaluate the in vitro efficacy of Cordyceps bassiana for the control of the adult stage of Rhipicephalus microplus. The adult immersion test in a solution containing the BbF2011 strain of C. bassiana at the concentrations of 1x10⁴ , 1x10⁶ and 1x10⁸ conidia/ml (30 ticks per treatment) was evaluated. Treated ticks at a concentration of 1x10⁸ conidia/ml reached 100% mortality at 15 days post-treatment (PT), while ticks at concentrations of 1x10⁶ y 1x10⁴ conidia/ml reached it at 18 and 21 days PT, respectively. Tick mortality was directly related to the fungi concentration. Moreover, ticks at the concentration 1x10⁸ conidia/ml showed the lowest oviposition and larva hatching as compared to 1x10⁶ and 1x10⁴ conidia/ml concentrations (p<0.05). The effectiveness shown by C. bassiana on R. microplus opens the option to a new biological control method

Palavras-chave : biological control; Rhipicephalus microplus; Cordyceps bassiana; entomopathogenic fungi.

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