International Journal of Diseases and Disorders ISSN 2329-9835 Vol. 3 (1), pp. 001-005, January, 2015. © International Scholars Journals

Full Length Research Paper

Repellent properties of Nicotiana tabacum and Eucalyptus globoidea against adults of Hyalomma marginatum rufipes

Magano S. R.1*, Mkolo M. N.2 and Shai L. J.3

1Department of Life and Consumer Sciences, University of South Africa, Florida Campus, South Africa.

2Department of Biology, University of Limpopo, Medunsa Campus, South Africa.

3Department of Biomedical Sciences, Tshwane University of Technology, Acardia Campus, South Africa.

Accepted 10 October, 2014

Abstract

Scientific evaluation of plants for anti-tick properties is a necessary step towards the development of tick control methods that exclude or involve less of synthetic chemicals. In this study, we evaluated the repellent properties of Nicotiana tabacum and Eucalyptus globoidea against adults of Hyalomma marganitum rufipes using a suitable repellency bioassay. Dichloromethane extract of E. globoidea had more repellent potency against adults of H. m. rufipes compared to ethyle-acetate extracts of N. tabacum in all the three concentrations (20, 30 and 40% w/v) used. The anti-tick repellent strength of dichloromethane extract of E. globoidea compared favourably with that of the commercial arthropod repellent, N, N-diethyltoluamide (DEET) and the dose was dependent.

Key words: Nicotiana tabacum, Eucalyptus globoidea, Hyalomma marginatum rufipes, repellency.