Anais do X Simpósio Internacional em Ciências Veterinárias (X SINCVET)

ACARICIDAL POTENTIAL OF NATIVE AND NATURALIZED BRAZILIAN PLANTS IN THE CONTROL OF AMBLYOMMA SPP.

Publicado em 22/05/2026 - ISBN: 978-65-272-2456-3

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Trabalho
Título do Trabalho
ACARICIDAL POTENTIAL OF NATIVE AND NATURALIZED BRAZILIAN PLANTS IN THE CONTROL OF AMBLYOMMA SPP.
Autores
  • Taynara Monsores e Silva
  • Ygor Henrique da Silva
  • Gabrielle de Lima Monzato
  • Vitoria Regina Oliveira de Jesus Soares
  • Matheus Eduardo Costa da Silva
  • Mathias Pittizer da Silva
  • Ingrid Lins Raquel de Jesus
  • Douglas Siqueira de Almeida Chaves
  • Nicoletta Faraone
  • YARA PELUSO CID
Modalidade
Resumo Simples
Área temática
Ectoparasitos: sistemática, epidemiologia e controle
Data de Publicação
22/05/2026
País da Publicação
Brasil
Idioma da Publicação
pt-BR
Página do Trabalho
https://www.even3.com.br/anais/x-simposio-internacional-ciencias-veterinarias/1432592-acaricidal-potential-of-native-and-naturalized-brazilian-plants-in-the-control-of-amblyomma-spp
ISBN
978-65-272-2456-3
Palavras-Chave
Prospection; Essential oils; Ectoparasiticidal activity; Cymbopogon martinii; Schinus terebinthifolius.
Resumo
Brazilian biodiversity represents a strategic resource for the prospection of natural compounds with ectoparasiticidal potential, with essential oils (EOs) standing out due to their previously described pharmacological activities. Among the most relevant plant species are the genera Cymbopogon and Schinus, whose EOs have been investigated for their antimicrobial, acaricidal, and repellent properties. In the context of parasitology, ticks of the genus Amblyomma are of particular importance due to their veterinary and epidemiological relevance, as well as the need for sustainable alternatives to synthetic acaricides, which are often associated with environmental toxicity and the development of resistance. Amblyomma sculptum occurs in the Cerrado, Atlantic Forest, and Pantanal biomes and is the primary vector of Rickettsia rickettsii, the etiological agent of Brazilian spotted fever, which recorded 36,497 notifications between 2007 and 2021, with 7% confirmed cases. Amblyomma cajennense, in turn, presents predominant distribution in the Amazon and transitional areas, with an average infectivity of 7% for Rickettsia amblyommatis, detected in Amazonian ticks and with a still-emerging epidemiological significance. The aim of this study was to evaluate the acaricidal activity of the EOs of Cymbopogon martinii and Schinus terebinthifolius, cultivated and extracted in southeastern Brazil, against adult ticks of A. sculptum and A. cajennense, as well as to determine their lethal concentrations (LC₅₀ and LC₉₀) by probit analysis using RStudio software. Tick mortality was assessed after 24 hours using the adult immersion test (n = 25), with five concentrations ranging from 50 to 200 µg/mL. Interspecific and sex-related variations were analyzed. The results based on the mortality of the mixed population showed that the EO of C. martinii displayed greater efficacy against A. sculptum, whereas the EO of S. terebinthifolius was more effective against A. cajennense. However, the sex-specific analysis revealed that, for A. sculptum, the EO of C. martinii presented an LC₅₀ of 89.95 μg/mL and an LC₉₀ of 148.19 μg/mL in females, while males showed values of 68.05 μg/mL for LC₅₀ and 108.35 μg/mL for LC₉₀. For the EO of S. terebinthifolius, females displayed an LC₅₀ of 75.82 μg/mL and an LC₉₀ of 132.40 μg/mL, and males registered an LC₅₀ of 73.54 μg/mL and an LC₉₀ of 144.72 μg/mL. In the case of A. cajennense, the EO of C. martinii resulted in an LC₅₀ of 53.06 μg/mL and an LC₉₀ of 150.39 μg/mL in females, whereas males exhibited an LC₅₀ of 61.61 μg/mL and an LC₉₀ of 111.24 μg/mL. The EO of S. terebinthifolius showed, for females of A. cajennense, an LC₅₀ of 96.8 μg/mL and an LC₉₀ of 135.43 μg/mL, and for males, an LC₅₀ of 89.78 μg/mL and an LC₉₀ of 112.52 μg/mL. Taken together, these findings show that the acaricidal effects of the tested EOs exhibit both interspecific and intraspecific variation, the latter being influenced by sex. In summary, these results reinforce the strategic potential of Brazilian biodiversity as a source of bioactive compounds for the development of new alternatives for controlling ectoparasites of sanitary relevance.
Título do Evento
X Simpósio Internacional em Ciências Veterinárias | X International Symposium in Veterinary Sciences
Cidade do Evento
Seropédica
Título dos Anais do Evento
Anais do X Simpósio Internacional em Ciências Veterinárias (X SINCVET)
Nome da Editora
Even3
Meio de Divulgação
Meio Digital

Como citar

SILVA, Taynara Monsores e et al.. ACARICIDAL POTENTIAL OF NATIVE AND NATURALIZED BRAZILIAN PLANTS IN THE CONTROL OF AMBLYOMMA SPP... In: Anais do X Simpósio Internacional em Ciências Veterinárias (X SINCVET). Anais...Seropédica(RJ) UFRRJ, 2025. Disponível em: https//www.even3.com.br/anais/x-simposio-internacional-ciencias-veterinarias/1432592-ACARICIDAL-POTENTIAL-OF-NATIVE-AND-NATURALIZED-BRAZILIAN-PLANTS-IN-THE-CONTROL-OF-AMBLYOMMA-SPP. Acesso em: 06/11/2026

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