JOURNAL OF AGRICULTURAL SCIENCE AND PRACTICE
Integrity Research Journals
ISSN: 2536-7072
Model: Open Access/Peer Reviewed
DOI: 10.31248/JASP
Start Year: 2016
Email: jasp@integrityresjournals.org
Evaluation of the repellent activity of the oil extract of garlic (Allium sativum, L.) against Glossina palpalis gambiensis, (V.)
https://doi.org/10.31248/JASP2025.537 | Article Number: 692A3BF43 | Vol.10 (4) - August 2025
Received Date: 11 June 2025 | Accepted Date: 30 August 2025 | Published Date: 30 August 2025
Authors: Okposio, M. E.* , Dibal D. M. , Emere, M. C. , Yilwa, V. M. , Pagabeleguem, S. , Bagayogo, A. , Toe, A. I. , Dao, N. D. , Poda, B. A. and Dede, P. M.
Transmission of Human African Trypanosomiasis is caused mainly by the bites of tsetse fly (Glossina spp) infected with the species of Trypanosoma brucei in sub-Saharan Africa. The tsetse fly constitutes a major threat, and the disease, trypanosomiasis, poses a big socio-economic burden in sub-Saharan African countries. This study aimed to evaluate the repellent activity of the oil extract of fresh garlic bulbs against Glossina palpalis gambiensis. The oil was extracted using cold maceration with n-hexane. The repellent activity of garlic oil extract against laboratory-reared teneral Glossina palpalis gambiensis was evaluated on the fore-arm skin of five human subjects under laboratory conditions. The data generated were subjected to statistical analysis using One-way analysis of variance (ANOVA). All graded concentrations of garlic oil extract (50, 75, 87.5 and 100%) showed a significant difference (p˂0.01) in their mean values in preventing tsetse flies from landing and probing on human skin. The high repellent effect of 100% concentration of garlic oil extract against Glossina palpalis gambiensis makes it a possible tool in the control of tsetse flies, as it prevents human skin contact with the tsetse flies, therefore eliciting its potential to reduce fly-human contact and thus reduce trypanosomiasis transmission and disease burden. Garlic oil extract applied at a concentration of 100% on skin may protect humans and livestock from the bites of tsetse flies, and so curb trypanosomiasis disease transmission and prevalence.
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