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Control of Boophilus ticks on heifers with two pyrethroids applied as sprays
1984
Davey, R.B. | Ahrens, E.H.
Boophilus microplus, B. annulatus, Hereford heifers (exper.), permethrin or fenvalerate applied as sprays, both pyrethroids could provide adequate reduction in control programs however both acaricides failed to provide the necessary reduction to achieve complete elimination
Afficher plus [+] Moins [-]Intrastadial and interstadial transmission of Anaplasma marginale by Boophilus annulatus ticks in cattle
1993
Samish, M. | Pipano, E. | Hadani, A.
The 1-host tick Boophilus annulatus was found to transmit anaplasmosis in cattle transstadially. Anaplasma marginale was invariably transmitted when ticks that had been pulled off Anaplasma-infected calves either after 7 days (as fully engorged larvae) or after 14 to 15 days (as fully engorged nymphs) were transferred within 4 days to susceptible calves. Three morphologically different A marginale isolates, 1 round (tailless) and 2 with different types of appendages (tailed) were transmitted by the ticks. These findings might explain the overlap of the geographic distribution of the disease and that of Boophilus spp in some areas of the world.
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