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Activity of essential oil of Lippia triplinervis Gardner (Verbenaceae) on Rhipicephalus microplus (Acari: Ixodidae).
Parasitol Res. 2013 Feb; 112(2):863-9.PR

Abstract

The objective of this work was to characterize and investigate the acaricidal activity of the essential oil of the aerial parts of Lippia triplinervis at different concentrations on unengorged larvae and engorged females of Rhipicephalus microplus. The essential oil yielded 2.21 % (w/w to dry matter) and was composed mainly of carvacrol (31.9 %), thymol (30.6 %), and p-cymene (12.3 %). Two tests were performed to assess the acaricidal activity: the modified larval packet test, with concentrations of 2.5, 5.0, 10.0, 15.0, and 20.0 mg/mL and the female immersion test, with concentrations of 10.0, 20.0, 30.0, 40.0, and 50.0 mg/mL. There were ten repetitions for each concentration, and for each test, a control group was formed in which the ticks were treated with Tween 80 (20 mg/mL). The experimental groups were kept in a climate-controlled chamber (27 ± 1 °C and RH >80 %). The mortality of the larvae was above 95 % in all the groups tested and reached 100 % as of the 5.0 mg/mL concentration, while the control group exhibited 0 % mortality. In the female immersion test, there was a significant decline (p < 0.05) in the egg mass weight, egg production index, and hatching percentage starting at the concentration of 30.0, 40.0, and 20.0 mg/mL, respectively, and the control percentage at the concentrations of 40.0 and 50.0 mg/mL were above 90 and 95 %. The L. triplinervis oil as thus an alternative source of the monoterpenes thymol, carvacrol, and p-cymene, and its toxicity on R. microplus larvae and females makes it promising possibility for control of this tick.

Authors+Show Affiliations

Grupo de Química Supramolecular e Biomimética, Departamento de Química, Universidade Federal de Viçosa, Campus Universitário, Avenida PH Rolfs, s/n, Viçosa, Minas Gerais, Brazil 36570-000.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23224609

Citation

Lage, Tiago Coelho de Assis, et al. "Activity of Essential Oil of Lippia Triplinervis Gardner (Verbenaceae) On Rhipicephalus Microplus (Acari: Ixodidae)." Parasitology Research, vol. 112, no. 2, 2013, pp. 863-9.
Lage TC, Montanari RM, Fernandes SA, et al. Activity of essential oil of Lippia triplinervis Gardner (Verbenaceae) on Rhipicephalus microplus (Acari: Ixodidae). Parasitol Res. 2013;112(2):863-9.
Lage, T. C., Montanari, R. M., Fernandes, S. A., de Oliveira Monteiro, C. M., de Oliveira Souza Senra, T., Zeringota, V., Calmon, F., da Silva Matos, R., & Daemon, E. (2013). Activity of essential oil of Lippia triplinervis Gardner (Verbenaceae) on Rhipicephalus microplus (Acari: Ixodidae). Parasitology Research, 112(2), 863-9. https://doi.org/10.1007/s00436-012-3209-y
Lage TC, et al. Activity of Essential Oil of Lippia Triplinervis Gardner (Verbenaceae) On Rhipicephalus Microplus (Acari: Ixodidae). Parasitol Res. 2013;112(2):863-9. PubMed PMID: 23224609.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Activity of essential oil of Lippia triplinervis Gardner (Verbenaceae) on Rhipicephalus microplus (Acari: Ixodidae). AU - Lage,Tiago Coelho de Assis, AU - Montanari,Ricardo Marques, AU - Fernandes,Sergio Antonio, AU - de Oliveira Monteiro,Caio Márcio, AU - de Oliveira Souza Senra,Tatiane, AU - Zeringota,Viviane, AU - Calmon,Fernanda, AU - da Silva Matos,Renata, AU - Daemon,Erik, Y1 - 2012/12/06/ PY - 2012/10/27/received PY - 2012/11/20/accepted PY - 2012/12/11/entrez PY - 2012/12/12/pubmed PY - 2013/7/5/medline SP - 863 EP - 9 JF - Parasitology research JO - Parasitol. Res. VL - 112 IS - 2 N2 - The objective of this work was to characterize and investigate the acaricidal activity of the essential oil of the aerial parts of Lippia triplinervis at different concentrations on unengorged larvae and engorged females of Rhipicephalus microplus. The essential oil yielded 2.21 % (w/w to dry matter) and was composed mainly of carvacrol (31.9 %), thymol (30.6 %), and p-cymene (12.3 %). Two tests were performed to assess the acaricidal activity: the modified larval packet test, with concentrations of 2.5, 5.0, 10.0, 15.0, and 20.0 mg/mL and the female immersion test, with concentrations of 10.0, 20.0, 30.0, 40.0, and 50.0 mg/mL. There were ten repetitions for each concentration, and for each test, a control group was formed in which the ticks were treated with Tween 80 (20 mg/mL). The experimental groups were kept in a climate-controlled chamber (27 ± 1 °C and RH >80 %). The mortality of the larvae was above 95 % in all the groups tested and reached 100 % as of the 5.0 mg/mL concentration, while the control group exhibited 0 % mortality. In the female immersion test, there was a significant decline (p < 0.05) in the egg mass weight, egg production index, and hatching percentage starting at the concentration of 30.0, 40.0, and 20.0 mg/mL, respectively, and the control percentage at the concentrations of 40.0 and 50.0 mg/mL were above 90 and 95 %. The L. triplinervis oil as thus an alternative source of the monoterpenes thymol, carvacrol, and p-cymene, and its toxicity on R. microplus larvae and females makes it promising possibility for control of this tick. SN - 1432-1955 UR - https://www.unboundmedicine.com/medline/citation/23224609/Activity_of_essential_oil_of_Lippia_triplinervis_Gardner__Verbenaceae__on_Rhipicephalus_microplus__Acari:_Ixodidae__ L2 - https://dx.doi.org/10.1007/s00436-012-3209-y DB - PRIME DP - Unbound Medicine ER -