6 documents found, page 1 of 1
Evidence of acaricide resistance in different life stages of Amblyomma mixtum a...
HIGA, L. de O. S.; BARRADAS PIÑA, F. T.; RODRIGUES, V. da S.; GARCIA, M. V.; SALASE, D. R.; MILER, R. J.; LEON, A. P. de; BARROS, J. C.; ANDREOTTI, R.The objectives of this study were to evaluate the resistance of Amblyomma mixtum and Rhipicephalus microplus ticks from co-infested bovines from the Veracruz region in Mexico to different acaricide families and to demonstrate the viability of the packet test on different A. mixtum instars. The following acaricide families were used: a combination (cypermethrin 15 g+chlorpyrifos 25 g+citronella 1 g+butoxide pipe...
Cattle tick infestation in Brangus cattle raised with Nellore in central Brazil.
ANDREOTTI, R.; BARROS, J. C.; GARCIA, M. V.; RODRIGUES, V. da S.; HIGA, L. de O. S.; DUARTE, P. O.; BLECHA, I. M. Z.; BONATTE-JUNIOR, P.The present study evaluated the behavior of Rhipicephalus microplus naturally infesting Brangus cattle raised with Nellore animals in the municipality of Água Clara, state of Mato Grosso do Sul, Central Brazil. For the field experiment composed of a group with 15 Brangus animals and 15 Nellore animals and a control group with 30 Brangus cattle, all at the post-weaning stage. The 2 groups were kept for 6 months ...
Biological parameters of Amblyomma coelebs Neumann, 1906 (Acari: Ixodidae) unde...
AGUIRRE, A. de A. R.; RODRIGUES, V. da S.; COSTA, I. N. da; GARCIA, M. V.; HIGA, L. de O. S.; MEDEIROS, J. F.; ANDREOTTI, R.One generation of Amblyomma coelebs life cycle under experimental conditions was evaluated. Ten tick pairs were allowed to feed on rabbits under laboratory conditions (LC), resulting six engorged females with a mean weight of 1,403.9 mg. Two females were maintained in a forest reserve under natural conditions (NC), and four were maintained in incubators (LC). The engorgement period lasted 10.33 days. Pre-ovipos...
In vitro efficacy of Metarhizium anisopliae sensu lato against unfed Amblyomma ...
GARCIA, M. V.; RODRIQUES, V. da S.; MONTEIRO, A. C.; SIMI, L. D.; HIGA, L. de O. S.; MARTINS, M. M.; PRETTE, N.; MOCHI, D. A.; ANDREOTTI, R.Amblyomma parvum Aragão (Acari: Ixodidae) is a tick species found with wide distribution in the Neotropical region. Even though it is a wildlife-related tick, it is also a frequent parasite of domestic animals, is aggressive to human beings and may harbor pathogenic microorganisms. Therefore, it is a target species for control on domestic animals, particularly those at the rural?wildlife interface. Herein, the ...
Life cycle of Amblyomma mixtum (Acari: Ixodidae) parasitizing different hosts u...
PIÑA, F. T. B.; RODRIGUES, V. da S.; HIGA, L. de O. S.; GARCIA, M. V.; BARROS, J. C.; LEÓN, A. A. P. de; ANDREOTTI, R.Amblyomma mixtum is a tick species in the Amblyomma cajennense complex. The known geographic range of A. mixtum extends from Texas in theUSAto western Ecuador and some islands in the Caribbean. Amblyomma mixtum is a vector of disease agents of veterinary and public health importance. The objective of this study was to describe the life cycle of A. mixtum under laboratory conditions. Bovines, rabbits and sheep w...
Evaluation of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) resistance ...
HIGA, L. de O. S.; GARCIA, M. V.; BARROS, J. C.; KOLLER, W. W.; ANDREOTTI, R.The Rhipicephalus (Boophilus) microplus tick is responsible for considerable economic losses in Brazil, causing leather damage, weight loss and reduced milk production in cattle and results in the transmission of pathogens. Currently, the main method for controlling this tick is using acaricides, but their indiscriminate use is one of the major causes of resistance dissemination. In this study, the adult immers...