Abstract

NAPOLES V, Darién et al. In vitro efficacy of Morinda citrifolia L in the control of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae). Rev. investig. vet. Perú [online]. 2016, vol.27, n.4, pp.833-839. ISSN 1609-9117.  http://dx.doi.org/10.15381/rivep.v27i4.12562.

The aim of this study was to evaluate the in vitro efficacy of Morinda citrifolia L in comparison with conventional chemical products (Supatraz®/amitraz and Ticomín®/ cipermetrina) on engorged females of Rhipicephalus (Boophilus) microplus. The adult ticks were collected from cattle free of chemical acaricides. Ten ticks were selected per Petri dish (n=24) and distributed in 8 treatments with 3 replicas each one. Treatments T1 to T5 received hidroalcoholic solutions of Morinda citrifolia Lat10,5,2.5,1.25 y0.625% respectively; T6 received Supatraz®/amitraz and T7 Ticomín®/Cipermetrina in 1:1000 dilution; and T8 was the negative control (distilled water) in volumes of 15 ml per Petri dish for 5 min. The readings were carried out at 15 min and 24 h postexposition. Dead ticks were counted to determine the efficacy of the treatments. The results showed an efficacy of 89.6 and 41.3% for the chemical treatments T6 and T7, whereas the maximum efficacy for M. citrifolia L was 20.6 in the concentration of 10%.

Keywords : Rhipicephalus (Boophilus) microplus; teleoginas; Morinda citrifolia L; efficacy.

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