| seasonal prevalence of ixodid ticks on cattle in the windhoek district of south west africa/namibia. | the seasonal prevalence of ixodid ticks was determined over a 2-year period by the weekly removal from at least 5 cattle of all adult ticks and the immature stages of rhipicephalus evertsi mimeticus in the ears. the highest mean weekly burden was 286,6 adult ticks/cow/week in march 1979, and the lowest 6,9 adult ticks/cow/week in july 1979. virtually no tick control is practised in this area. rhipicephalus capensis group adults peaked in the summer from october to march/april. rhipicephalus ever ... | 1984 | 6533509 |