Evaluation of phytotherapy alternatives for controlling Rhipicephalus (Boophilus) microplus in vitro.

The objective of this study was to identify the main chemical components of the essential oil of Cuminum cyminum L. (cumin) and of the fixed oils of Bertholletia excelsa (Brazil nut) and of Helianthus annuus (sunflower seed). As well as testing the three oils and three different commercial synthetic acaricides against engorged females of Rhipicephalus (Boophilus) microplus in order to explore their acaricidal efficacy.

[In vitro analysis of amitraz efficacy against Rhipicephalus (Boophilus) microplus (Canestrini, 1887) populations of southern region of Rio Grande do Sul state].

Commercial formulation of the amitraz is the most used acaricide in the southern region of Rio Grande do Sul State, however scientific data about the efficacy of these products in this region are sparse. The aim of the present study was to evaluate the frequency of R. (B.