Amblyomma hebraeum, percentage and rate of female attachment to rabbits was higher (except shortly after release of females) around feeding males than in areas previously treated with extract of fed males, effect of elapsed time and of number of males vs. equivalent extract on attachment values, results prove bioassays to be valid for component and extract-equivalent assessment

Dermacentor andersoni, demonstration of Anaplasma marginale in hemolymph by animal inoculation and fluorescent antibody technique

The male, female, nymph, and larva of Haemaphysalis (Rhipistoma) norvali sp. n., are described and compared with other members of the H. (R.) spinulosa group. Adult H. (R.) norvali parasitize the southern African hedgehog, Erinaceus frontalis Smith, in Matabeleland, Zimbabwe. Immatures were reared on a laboratory rabbit.

influence of parasitemia level of calves at time of feeding by Dermacentor andersonii upon development of Anaplasma marginale in the ticks

Boophilus microplus engorged females stored at 4 C for up to 5 days and females kept at room temperature for 1 day and then at 4 C for 1 day showed no significant differences in their response to an organophosphate (dioxathion) as determined by the Drummond adult test

Rhipicephalus simus, 5 types of Anaplasma marginale colonies demonstrated in midgut

Dermacentor andersoni, density, size, type, and distribution of colonies of Anaplasma marginale in gut of ticks incubated at 37 C for various periods