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Acaricidal effect and chemical composition of essential oils extracted from Cuminum cyminum, Pimenta dioica and Ocimum basilicum against the cattle tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)
- Martinez-Velazquez, Moises, Castillo-Herrera, Gustavo Adolfo, Rosario-Cruz, Rodrigo, Flores-Fernandez, Jose Miguel, Lopez-Ramirez, Julisa, Hernandez-Gutierrez, Rodolfo, del Carmen Lugo-Cervantes, Eugenia
- Parasitology research 2011 v.108 no.2 pp. 481-487
- Boophilus, Cuminum cyminum, Ocimum basilicum, Pimenta dioica, Rhipicephalus, acaricidal properties, acaricides, allspice, basil, chemical composition, cumin, essential oils, eugenol, gas chromatography, larvae, leaves, linalool, mass spectrometry, methyl chavicol, methyl eugenol, mortality, probability, seeds, small fruits, tick control, ticks, Mexico
- Acaricidal activity of essential oils extracted from cumin seeds (Cuminum cyminum), allspice berries (Pimenta dioica) and basil leaves (Ocimum basilicum) were tested on 10-day-old Rhipicephalus (Boophilus) microplus tick larvae using the LPT. Two-fold dilutions of the three essential oils were tested from a starting dilution of 20% down to 1.25%. Results showed a high toxicological effect for cumin, producing 100% mortality in all tested concentrations on R. microplus larvae. Similarly, allspice essential oil produced 100% mortality at all concentrations with the exception of a dramatic decrease at 1.25% concentration. Conversely, basil essential oil was not shown to be toxic against R. microplus larvae. The most common compounds detected by gas chromatography-mass spectrometry were as follows: cumin: cuminaldehyde (22.03%), γ-terpinene (15.69%) and 2-caren-10-al (12.89%); allspice: methyl eugenol (62.7%) and eugenol (8.3%); basil: linalool (30.61%) and estragole (20.04%). Results clearly indicate that C. cyminum and P. dioica essential oils can be used as an effective alternative for R. microplus tick control, and there is a high probability they can be used for other ticks affecting cattle in Mexico and throughout the world, thereby reducing the necessity for traditional and unfriendly synthetic acaricides.