Ethnobotanical survey and testing of plants traditionally used against hematophagous insects in Eritrea.


Waka, M; Hopkins, RJ; Curtis, C; (2004) Ethnobotanical survey and testing of plants traditionally used against hematophagous insects in Eritrea. Journal of ethnopharmacology, 95 (1). pp. 95-101. ISSN 0378-8741 DOI: https://doi.org/10.1016/j.jep.2004.07.003

Full text not available from this repository.

Abstract

An ethnobotanical study was conducted to find plants traditionally used against nuisance insects in three regions of Eritrea: highland, eastern escarpment and wet lowland. Six plants were collected, two of them were reported to be used against mosquitoes (Ocimum forskolei, Lamiaceae and Nicotiana glauca, Solanaceae), two others against fleas (Salvia shimperi, Lamiaceae and Otostegia integrifolia, Lamiaceae) and Neorautanenia mitis (Fabaceae) and Calpurnea aurea (Fabaceae) against animal lice. The effect of fresh leaves and shoots of O. forskolei hanging on walls at the head and foot of beds was tested in Eritrea against Anopheles arabiensis and 53% reduction in mean number of mosquitoes per house was achieved. Blood meals of mosquitoes collected from houses and pit shelters were analysed to determine whether biting diversion occurred due to the use of plants in the houses. No diversion of biting was observed to goats, which are abundant in the test area. Hot water distillates of N. glauca, S. schimperi and O. integrifolia were tested against An. gambiae s.s. in the laboratory using a Hemotek membrane blood feeder with pig skin replacing the parafilm membrane. The approximate doses in microl/cm(2) for 50% repellency with the extracts of S. schimperi, N. glauca and O. integrifolia were 0.97, 1.72 and 2.44, respectively. Even though the plants only achieved partial protection, they have a potential for widespread use as a complement to other control methods.

Item Type: Article
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Disease Control
PubMed ID: 15374613
Web of Science ID: 224365500015
URI: http://researchonline.lshtm.ac.uk/id/eprint/13289

Statistics


Download activity - last 12 months
Downloads since deposit
0Downloads
293Hits
Accesses by country - last 12 months
Accesses by referrer - last 12 months
Impact and interest
Additional statistics for this record are available via IRStats2

Actions (login required)

Edit Item Edit Item