Metabolism of [14C]Amitraz in Larvae of Boophilus Microplus

Integrate Control of Boophilus Microplus in Cattle

Acaricide resistance mechanisms in Rhipicephalus (Boophilus) microplus Mecanismos de resistência aos acaricidas em Rhipicephalus (Boophilus) microplus

Acaricide resistance has become widespread in countries where cattle ticks, Rhipicephalus (Boophilus) microplus, are a problem. Resistance arises through genetic changes in a cattle tick population that causes modifications to the target site, increased metabolism or sequestration of the acaricide, or reduced ability of the acaricide to penetrate through the outer protective layers of the tick’...

The transmission of Babesia bovis using frozen infective material obtained from Boophilus microplus larvae.

POT9IE~ER, F . T. & VAN VUUREN, A. S., 1974. The transmission of Babesia bovis using frozen infective material obtained from Boophilus microplus larvae. Onderstepoort J. vet. Res., 41 , .... (1974) Bo~philus microplus larvae infected with Babesia bovis were removed from a susceptible ox approximately 72hours after attachment, triturated and stored in a liquid nitrogen refrigerator with dlm,:thy...

A Boophilus microplus vitellin-degrading cysteine endopeptidase.

Here we describe the purification and characterization of a vitellin (VT) degrading cysteine endopeptidase (VTDCE) from eggs of the hard tick Boophilus microplus. A homogeneous enzyme preparation was obtained by chromatographic fractionation on ion-exchange and gel filtration columns and an autolysis step. This step consisted of incubation of a semipurified enzyme (after the first ion-exchange ...

Prostaglandin in the saliva of the cattle tick Boophilus microplus.

Previous studies of saliva from engorged female cattle ticks revealed a component which induced contration of some isolated smooth muscles. Fractionation and further characterisation have shown that this substance is of the "slow-reacting" type, but that it is neither a bradykinin nor slow-reacting substance of anaphylaxis. The substance is deactivated by incubation with 15-hydroxprostaglandin ...