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In vitro acaricidal activity of different ectoparasiticide classes against Amblyomma sculptum larvae / Atividade acaricida in vitro de diferentes classes de ectoparasiticidas frente a larvas de Amblyomma sculptum

Borges, Debora Azevedo; Cid, Yara Peluso; Avelar, Barbara Rauta de; Ferreira, Thais Paes; Campos, Diefrey Ribeiro; Santos, Gabriela Carmelinda Martins dos; Alves, Melina Cardilo Campos; Scott, Fabio Barbour.
R. bras. Parasitol. Vet.; 29(3): e003020, 2020. tab
Artigo Inglês | VETINDEX | ID: vti-27666
Zoonoses are major causes of morbidity and mortality worldwide. Among them, Brazilian Spotted Fever (BSF) is an important one that occurs in some regions of South America and can be transmitted by the “star tick” Amblyomma sculptum. Application of acaricides against the larval stage is important as strategy of population control. However, there is still a deficiency of studies on chemical control of A. sculptum and the present work aims to evaluate the in vitro acaricidal activity of cypermethrin, flumethrin, deltamethrin, fipronil, coumaphos and chlorpyrifos against A. sculptum larvae. Bioassays were performed using the larval immersion test method. A discriminatory analysis between the antiparasitic classes most used for tick control was carried out, which made it possible to determine the classes with higher potential for controlling A. sculptum larvae. Our results showed that A. sculptum larvae present highest sensitivity to the synthetic pyrethroid group, followed by the phenylpyrazole, organophosphate and macrocyclic lactone groups. These findings may support studies on improvement of tick control as in animals as in the environment.(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1
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