Acaricidal efficacy of fluralaner against Rhipicephalus microplus ticks under laboratory and field conditions in Brazil
We observed natural variability in the susceptibility of larvae from the different populations of R. microplus that had never been treated with this compound. Despite the observed variability in the in vitro results (LC50), a comparable efficacy of > 90% lasting until day 42 was observed in the field trials. Also, based on the results of the laboratory testing (LC50 and DD) and field trials, we can conclude that there was no resistance to fluralaner in the 18 studied tick populations.
Authors
- Lorena Lopes Ferreira (ORCID: https://orcid.org/0000-0003-0813-3054)
- Haile Dean Figueiredo Chagas (ORCID: https://orcid.org/0000-0002-8178-7997)
- Fernando de Almeida Borges (ORCID: https://orcid.org/0000-0002-8888-6269)
- Gabriel Webert Gomes (ORCID: https://orcid.org/0000-0002-9731-6954)
- Isabela Santos Silva (ORCID: https://orcid.org/0000-0002-2992-9636)
- Rafael Paranhos de Mendonça (ORCID: https://orcid.org/0000-0002-7694-2817)
- Tom Strydom (ORCID: https://orcid.org/0009-0004-1490-5801)
- S. Torres (ORCID: https://orcid.org/0000-0003-3315-894X)
- Caio Márcio de Oliveira Monteiro (ORCID: https://orcid.org/0000-0001-5253-5451)
- Lívio Martins Costa (ORCID: https://orcid.org/0000-0002-1475-049X)
- Welber Daniel Zanetti Lopes (ORCID: https://orcid.org/0000-0002-8009-8436)
- Ana Lúcia Coutinho Teixeira (ORCID: https://orcid.org/0000-0002-2851-3102)
- Francisca Letícia Vale (ORCID: https://orcid.org/0000-0002-1449-2582)
- Daniel de Castro Rodrigues (ORCID: https://orcid.org/0000-0001-9792-5744)
Institutions
- Universidade Federal de Minas Gerais (BR)
- Universidade Federal de Mato Grosso do Sul (BR)
- Universidade de São Paulo (BR)
- Universidade de Franca (BR)
- Department of Animal Health (VN)
- Universidade Federal do Maranhão (BR)
- Universidade Federal de Goiás (BR)
Publication Details
- Journal
- Parasites & Vectors
- Published
- 2025-04-28
- DOI
- https://doi.org/10.1186/s13071-025-06775-2
- Citations
- 4
- Primary Topic
- Insect and Pesticide Research
- Type
- article
- Field-Weighted Citation Impact
- 6.69
Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico