Práticas agroecológicas para o controle de carrapatos em agroecossistemas familiares: utilização do extrato alcoólico de Citronela [Cymbopogon nardus (l.) Rendle].

Abstract

The work was conducted in Areial (PB) to evaluate the effectiveness of the alcoholic extract of citronella [Cymbopogon nardus (L.) Rendle] on the control of the cattle tick [Rhipicephalus (Boophilus) microplus]. The research was developed in 05 properties that perform agroecosystems familiar in the rainy period in the region in mid-January of 2012. The research was done in vivo, which were used 21 domestic animals belonging to the producers, being divided into 03 groups with 07 animals each one. A group was treated only with the solution containing absolute ethanol (98° GL). The others were treated with basic solutions of extracts of citronella as recommendations coming from institutions linked to extension for use at field level, corresponding to 150g and 300g plant (field solution). An analysis descriptive statistics was constituted for the understanding of the data. To evaluate the effectiveness of the product, were counted female ticks with length exceeding 4.5 mm, before and after application of the product (1º and 7° day). The use of solutions presented on the 7th day after application, 73.35% of efficacy when used alcohol and 82.72 and 85.18% of efficiency against engorged female ticks when it increased the plant, obtaining the alcoholic extract of citronella in the respective concentrations of 150 and 300g. The treatments were similar when analyzed statistically, however, the effect was significant when using the plant in solution.