Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s00436-015-4547-3 http://hdl.handle.net/11449/158461 |
Resumo: | This is the first study to investigate the activity of thymol on Rhipicephalus microplus larvae under semi-natural conditions. For this purpose, tests were conducted in pots with Brachiaria decumbens seedlings containing cattle tick larvae. Thymol, diluted in ethanol 50A degrees GL, was tested at concentrations of 2.5, 5.0, 10.0, 15.0, and 20.0 mg/mL, along with the control group treated with the solvent alone. Each treatment was composed of five pots (1 pot = a repetition). The experiment was performed in three steps. On the first day, the larvae were applied at the base of the signalgrass. Twenty-four hours later, approximately 25 mL of the solution was applied with thymol on the top of the vegetation in each pot. The survival of the larvae was measured 24 h after application of the solutions. Each pot was analyzed individually, and the grass fillets contained larvae were cut with scissors, placed in Petri dishes, and taken to the laboratory to count the number of living larvae. At the highest concentrations (10, 15, and 20 mg /mL), the number of live larvae declined by more than 95 % in relation to the control group. The lethal concentration 50 % (LC50) and LC90 values were 3.45 and 9.25 mg/ml, respectively. The application of thymol in semi-natural conditions starting concentration of 10 mg/mL significantly reduced the number of living R. microplus larvae. |
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Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditionsCattle tickBrachiaria decumbensSemi-natural conditionsMonoterpeneThis is the first study to investigate the activity of thymol on Rhipicephalus microplus larvae under semi-natural conditions. For this purpose, tests were conducted in pots with Brachiaria decumbens seedlings containing cattle tick larvae. Thymol, diluted in ethanol 50A degrees GL, was tested at concentrations of 2.5, 5.0, 10.0, 15.0, and 20.0 mg/mL, along with the control group treated with the solvent alone. Each treatment was composed of five pots (1 pot = a repetition). The experiment was performed in three steps. On the first day, the larvae were applied at the base of the signalgrass. Twenty-four hours later, approximately 25 mL of the solution was applied with thymol on the top of the vegetation in each pot. The survival of the larvae was measured 24 h after application of the solutions. Each pot was analyzed individually, and the grass fillets contained larvae were cut with scissors, placed in Petri dishes, and taken to the laboratory to count the number of living larvae. At the highest concentrations (10, 15, and 20 mg /mL), the number of live larvae declined by more than 95 % in relation to the control group. The lethal concentration 50 % (LC50) and LC90 values were 3.45 and 9.25 mg/ml, respectively. The application of thymol in semi-natural conditions starting concentration of 10 mg/mL significantly reduced the number of living R. microplus larvae.Univ Fed Juiz de Fora, Programa Posgrad Ciencias Biol Comportamento & Bi, BR-36036900 Juiz De Fora, MG, BrazilUniv Fed Rural Rio de Janeiro, Programa Posgrad Ciencias Vet, BR-23851970 Seropedica, RJ, BrazilUniv Estadual Paulista, BR-13506900 Rio Claro, SP, BrazilEmbrapa Gado Leite, Parasitol Lab, BR-36038330 Juiz De Fora, MG, BrazilUniv Estadual Paulista, BR-13506900 Rio Claro, SP, BrazilSpringerUniv Fed Juiz de ForaUniv Fed Rural Rio de JaneiroUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Araujo, Laryssa XavierLopes Novato, Tatiane PinheiroZeringota, VivianeMatos, Renata Silva [UNESP]Souza Senra, Tatiane OliveiraMaturano, RalphAzevedo Prata, Marcia CristinaDaemon, ErikOliveira Monteiro, Caio Marcio2018-11-26T15:27:45Z2018-11-26T15:27:45Z2015-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article3271-3276application/pdfhttp://dx.doi.org/10.1007/s00436-015-4547-3Parasitology Research. New York: Springer, v. 114, n. 9, p. 3271-3276, 2015.0932-0113http://hdl.handle.net/11449/15846110.1007/s00436-015-4547-3WOS:000359865600010WOS000359865600010.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengParasitology Research0,991info:eu-repo/semantics/openAccess2023-10-21T06:10:14Zoai:repositorio.unesp.br:11449/158461Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-21T06:10:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions |
title |
Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions |
spellingShingle |
Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions Araujo, Laryssa Xavier Cattle tick Brachiaria decumbens Semi-natural conditions Monoterpene |
title_short |
Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions |
title_full |
Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions |
title_fullStr |
Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions |
title_full_unstemmed |
Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions |
title_sort |
Acaricidal activity of thymol against larvae of Rhipicephalus microplus (Acari: Ixodidae) under semi-natural conditions |
author |
Araujo, Laryssa Xavier |
author_facet |
Araujo, Laryssa Xavier Lopes Novato, Tatiane Pinheiro Zeringota, Viviane Matos, Renata Silva [UNESP] Souza Senra, Tatiane Oliveira Maturano, Ralph Azevedo Prata, Marcia Cristina Daemon, Erik Oliveira Monteiro, Caio Marcio |
author_role |
author |
author2 |
Lopes Novato, Tatiane Pinheiro Zeringota, Viviane Matos, Renata Silva [UNESP] Souza Senra, Tatiane Oliveira Maturano, Ralph Azevedo Prata, Marcia Cristina Daemon, Erik Oliveira Monteiro, Caio Marcio |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Univ Fed Juiz de Fora Univ Fed Rural Rio de Janeiro Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Araujo, Laryssa Xavier Lopes Novato, Tatiane Pinheiro Zeringota, Viviane Matos, Renata Silva [UNESP] Souza Senra, Tatiane Oliveira Maturano, Ralph Azevedo Prata, Marcia Cristina Daemon, Erik Oliveira Monteiro, Caio Marcio |
dc.subject.por.fl_str_mv |
Cattle tick Brachiaria decumbens Semi-natural conditions Monoterpene |
topic |
Cattle tick Brachiaria decumbens Semi-natural conditions Monoterpene |
description |
This is the first study to investigate the activity of thymol on Rhipicephalus microplus larvae under semi-natural conditions. For this purpose, tests were conducted in pots with Brachiaria decumbens seedlings containing cattle tick larvae. Thymol, diluted in ethanol 50A degrees GL, was tested at concentrations of 2.5, 5.0, 10.0, 15.0, and 20.0 mg/mL, along with the control group treated with the solvent alone. Each treatment was composed of five pots (1 pot = a repetition). The experiment was performed in three steps. On the first day, the larvae were applied at the base of the signalgrass. Twenty-four hours later, approximately 25 mL of the solution was applied with thymol on the top of the vegetation in each pot. The survival of the larvae was measured 24 h after application of the solutions. Each pot was analyzed individually, and the grass fillets contained larvae were cut with scissors, placed in Petri dishes, and taken to the laboratory to count the number of living larvae. At the highest concentrations (10, 15, and 20 mg /mL), the number of live larvae declined by more than 95 % in relation to the control group. The lethal concentration 50 % (LC50) and LC90 values were 3.45 and 9.25 mg/ml, respectively. The application of thymol in semi-natural conditions starting concentration of 10 mg/mL significantly reduced the number of living R. microplus larvae. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-01 2018-11-26T15:27:45Z 2018-11-26T15:27:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s00436-015-4547-3 Parasitology Research. New York: Springer, v. 114, n. 9, p. 3271-3276, 2015. 0932-0113 http://hdl.handle.net/11449/158461 10.1007/s00436-015-4547-3 WOS:000359865600010 WOS000359865600010.pdf |
url |
http://dx.doi.org/10.1007/s00436-015-4547-3 http://hdl.handle.net/11449/158461 |
identifier_str_mv |
Parasitology Research. New York: Springer, v. 114, n. 9, p. 3271-3276, 2015. 0932-0113 10.1007/s00436-015-4547-3 WOS:000359865600010 WOS000359865600010.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Parasitology Research 0,991 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
3271-3276 application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797789467216445440 |