In vitro evaluation of the effects of some acaricides on life stages of Rhipicephalus sanguineus (Acari: Ixodidae)

Resumo

The action of five acaricides was evaluated on eggs, larvae, nymphs and adults of the ixodid tick Rhipicephalus sanguineus. The acaricides tested were: high cis-cypermethrin (0.01%) + DDVP (0.11%), coumaphos (0.05%), deltamethrin (0.0025%), amitraz (0.025%) and cypermethrin (0.015%). Eggs treated with high cis-cypermethrin and cypermethrin showed eclosion inhibitions of 72.1% and 67.3%, respectively, whereas coumaphos was much less effective (only 11.7%). Except for coumaphos, which resulted in 63.3% and 80.0% mortality of nymphs and unfed females, respectively, all compounds tested killed 100% of all tick stages to which they were exposed.

Descrição

Palavras-chave

Carrapato, Rhipicephalus sanguineus, Acaricida, Cão, Tick, Acaricide, Dog

Citação

BICALHO, K. A.; FERREIRA, F.; BORGES, L. M. F.; RIBEIRO, M. F. B. In vitro evaluation of the effects of some acaricides on life stages of Rhipicephalus sanguineus (acari: ixodidae). Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 53, n. 5, p. 548-552, Oct. 2001.