Strategic dipping and pasture spelling plus dipping were compared in Queensland with no treatment on Droughtmaster cows and their progeny over 5 years. Average monthly counts of Boophilus microplus (Can.) on the young cattle and their dams were 10 and 18, <1 and 2, and 56 and 112, for the 3 treatments, respectively. There was stable transmission of Babesia bovis, B. bigemina and Anaplasma marginale to the progeny from the untreated cows. Strategic dipping, and pasture spelling plus dipping, seriously disrupted the transmission of B. bovis, and vaccination against this parasite is recommended. Pasture spelling plus dipping also interfered with the transmission of A. marginale and B. bigemina, but vaccination against A. marginale only is warranted. At 27-29 months of age, the young cattle in the strategic dipping group had...

Boophilus microplus is Brazil's outstanding livestock ectoparasitic pest (annual losses US$ 1 billion), affecting, to varying extents, all its states, with a national herd of some 130 million cattle. The country's 8.5 million km² and 23 000 km of land frontier with 10 infested countries complicate...

A variety of haemoparasites occurs in ruminants of South America (12°00′N-56°00′S), but there is consensus on the significant economic impact of babesiosis (Babesia bovis and B. bigemina) and anaplasmosis (Anaplasma marginale). The tick vector for the Babesia spp. for the whole region is Boophilus...

Crossbred dairy heifers on a farm in an East Coast fever (ECF) endemic area were immunized against Theileria parva, Anaplasma spp, Babesia bigemina, B. bovis and Cowdria ruminantium. They were treated at infrequent intervals with chlorfenvinphos to limit infestation with adult ticks, without...