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Prospects for developing efficient targets for the xenomonitoring and control of Simulium damnosum s.l., the major vectors of onchocerciasis in Africa

Koala, Lassane, Tirados, Inaki ORCID: https://orcid.org/0000-0002-9771-4880, Nikiema, Achille S., Thomsen, Edward ORCID: https://orcid.org/0000-0003-1136-6430, McCall, Philip ORCID: https://orcid.org/0000-0002-0007-3985 and Dabire, Roch K. (2022) 'Prospects for developing efficient targets for the xenomonitoring and control of Simulium damnosum s.l., the major vectors of onchocerciasis in Africa'. Medical and Veterinary Entomology, Vol 36, Issue 3, pp. 235-246.

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Abstract

Despite the ethical issues concerning the continued use of Human Landing Catches (HLC) to monitor the Simulium damnosum complex for epidemiological monitoring of onchocericasis, few attempts to develop alternatives have been reported. In studies on a wild population of S. damnosum in Burkina Faso, we tested visual targets (different sizes and shapes) and olfactory stimuli (CO2, and POCA and BG‐lure® odour blends) for their ability to attract and collect host seeking blackflies. At each trap, blackflies were caught with appropriately sized electrocuting grids and results from Latin square design tests were compared. Throughout, HLCs captured more blackflies than the targets. Of the traps tested, small targets (0.0625 and 0.5 m2) were the most efficient visual lure in terms of the number of S. damnosum captured per unit area 1.7–5× more than larger targets. Overall, results suggested that sticky black targets of horizontal rectangular shape (0.125–0.5 m2) and baited with a POCA and/or CO2 mixture could provide a cheap practical field alternative to HLC for onchocerciasis xenomonitoring, subject to confirmation that the design has no inherent bias for certain members of the S. damnosum species complex.

Item Type: Article
Additional Information: This article also appears in: Special Issue: Sustainable Vector Biology Research Systems in Africa
Subjects: QX Parasitology > QX 20 Research (General)
QX Parasitology > Insects. Other Parasites > QX 505 Diptera
QX Parasitology > Insects. Other Parasites > QX 600 Insect control. Tick control
QX Parasitology > Insects. Other Parasites > QX 650 Insect vectors
WC Communicable Diseases > Tropical and Parasitic Diseases > WC 885 Onchocerciasis
Faculty: Department: Biological Sciences > Vector Biology Department
Digital Object Identifer (DOI): https://doi.org/10.1111/mve.12598
SWORD Depositor: JISC Pubrouter
Depositing User: JISC Pubrouter
Date Deposited: 23 Aug 2022 13:45
Last Modified: 13 Jun 2023 10:29
URI: https://archive.lstmed.ac.uk/id/eprint/20848

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