Abstract
The rusa deer (C. timorensis) is more resistant to the cattle tick (B. microplus) than are British breed cattle in Papua New Guinea. The average yield of replete female ticks from deer was 1.6% (0.3-3.2%) as compared to 11.2% (3.4-23.7%) from calves. Ticks from deer were more slender, lighter in weight and produced fewer eggs (mean 1800) than did ticks from calves (mean 2200) but the deer was an effective host. A cervid population can maintain a tick population in the absence of bovine hosts thus presenting an important factor in eradication programs. Nutritional stress appears to result in a higher seasonal prevalence of infestation among males and the non-pregnant females.

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