Evaluation of the Efficacy of Acaricides Used to Control the Cattle Tick, Rhipicephalus microplus, in Dairy Herds Raised in the Brazilian Southwestern Amazon

Autor: Rodrigo Barros Rocha, Márcia Cristina de Sena Oliveira, Fabio da Silva Barbieri, Elisana Sales Ribeiro, Luciana G. Brito
Přispěvatelé: LUCIANA GATTO BRITO, CPAF-RO, FABIO DA SILVA BARBIERI, CPAF-RO, RODRIGO BARROS ROCHA, CPAF-RO, MARCIA CRISTINA DE SENA OLIVEIRA, CPPSE, ELISANA SALES RIBEIRO, CPAF-RO.
Rok vydání: 2010
Předmět:
Zdroj: Veterinary Medicine International
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
Veterinary Medicine International, Vol 2011 (2011)
ISSN: 2042-0048
Popis: The adult immersion test (AIT) was used to evaluate the efficacy of acaricide molecules used for control ofRhipicephalus micropluson 106 populations collected in five municipalities in the state of Rondônia in the Brazilian South Occidental Amazon region. The analysis of the data showed that the acaricide formulations had different efficacies on the tick populations surveyed. The synthetic pyrethroids (SPs) acaricides were the least effective (48.35–76.84%), followed by SP + organophosphate (OP) associations (68.91–81.47%) and amidine (51.35–100%). For the macrocyclic lactones (MLs), the milbemycin (94.84–100%) was the most effective, followed by spinosad (93.21–100%) and the avermectins (81.34–100%). The phenylpyrazole (PZ) group had similar efficacy (99.90%) to the MLs. Therefore, SP acaricides, including associations with OP, and formulations based on amidine presented low in vitro efficacy to control theR. micropluspopulations surveyed.
Databáze: OpenAIRE
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