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Cattle-tick control in Northern Nigeria: a field study of BHC, Sevin, toxaphene and ronnel used as sprays

Published online by Cambridge University Press:  10 July 2009

R. J. Thorpe  and
P. Walker
R. J. Thorpe
Affiliation:
Institute for Agricultural Research, Samaru
P. Walker
Affiliation:
Institute for Agricultural Research, Samaru
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Extract

A field study was made of the effects of γ BHC, Sevin, toxaphene and ronnel (fenchlorphos) used as sprays on the numbers of ticks infesting cattle at Shika stockfarm in the Northern Guinea Savannah zone of Nigeria.

The tick population included Boophilus annulatus (Say), B. decoloratus (Koch), Amblyomma variegatum (F.), Hyalomma truncatum Koch and Rhipiccphalus simus simus Koch, and its distribution on the host is described.

Significance tests of treatment difference were carried out for initial kill and reinfestation rate. In both dry- and wet-season trials toxaphene proved to be the most effective ixodicide. A satisfactory degree of control was given by γ BHC but not by Sevin or ronnel.

It is concluded that spraying at 21- and 7-day intervals during the dry and wet seasons, respectively, with either toxaphene or γ BHC will maintain a stable, satisfactory level of tick parasitism and premunity to tick-borne diseases in the herd.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 54 , Issue 4 , January 1964 , pp. 633 - 641
Copyright
Copyright © Cambridge University Press 1964

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References

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