Influence of Tarchonanthus Camphoratus, Acalypha Fruticosa and Tagetes Minuta Extracts on Fertility of Phlebotomus duboscqi

Asian Journal of Pharmaceutical and Health Sciences,2012,2,4,498-503.
Published:November 2012
Type:Research Article
Author(s) affiliations:

Mong'are samuel1*, Ng'ang'a Zipporah2, Maranga Rosebella1, Osiemo Zipporah1, Ngure Peter3, Ngumbi Philip4, Tonui Willy4

1Jomo Kenyatta University of Agriculture and Technology, P.O Box 62000, Nairobi, Kenya.

2Institute of Tropical Medicine and Infectious Diseases, P.O Box 62000, Nairobi, Kenya.

3Daystar University, P.O Box 44400-00100, Nairobi, Kenya.

4Kenya Medical Research Institute, KEMRI, P.O. Box 43640 - 00100, Nairobi, Kenya.


This study was carried out to find out the effects of Tarchonanthus Camphoratus, Acalypha fruticosa and Tagetes minuta crude extracts on the fertility of P. duboscqi. The extracts were prepared from the dried aerial parts of T. camphoratus, A. fruticosa, and T. minuta. Ten female sand flies were aspirated into vials where they were fed on a mixture of the plant extracts and sucrose solution prepared in a ratio of 1:1. These crude plant extracts were found to reduce the fecundity of P. duboscqi significantly (P< 0.05). The extracts were found to reduce the fecundity of P. duboscqi by 73% (A. fruticosa), 53% (T. minuta) and 26% (T. camphoratus) (P< 0.05). The higher level of A. fruticosa, T. minuta and T. camphoratus activities would potentially reduce the population of sand flies. This study has provided scientific proof of the effects of these medicinal plants on the vectorial capacity of sand flies.

Mean number of eggs laid by P. duboscqi after feeding on the combined methanol extracts