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Towards the elimination of the Bioko form of Simulium yahense from Bioko: planning and insecticide trials

Towards the elimination of the Bioko form of Simulium yahense from Bioko: planning and insecticide trials

Cheke, Robert A. ORCID: 0000-0002-7437-1934, Meyer, Rolf R.F., Barro, Tele, Mas, Jordi, Sima, Anacleto Nsue, Abaga, Simon Ekwa, Noma, Mounkaila, Sékétéli, Azo V. and Wilson, Michael D. (2009) Towards the elimination of the Bioko form of Simulium yahense from Bioko: planning and insecticide trials. Acta Zoologica Lituanica, 19 (2). pp. 132-141. ISSN 1648-6919 (doi:10.2478/v10043-009-0013-8)

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Abstract

Onchocerciasis on Bioko island is transmitted by the endemic Bioko form of Simulium yahense. After collection of baseline data on the fly’s breeding sites, its insecticide susceptibility and infection rates with Onchocerca volvulus, a ground-based insecticide trial was planned and executed in the northern two-thirds of the island. The first round of five consecutive weekly treatments was conducted during the week beginning 12 February 2001, using knapsack sprayers to dispense 21 litres of a 20% EC formulation of temephos (Abate) at a dose of 0.065 ppm at 92 locations in 30 rivers with discharges >0.05 m³s-¹. The treatments were mostly successful, but failures on three rivers were attributable to the inaccessibility of sites upstream of the highest accessible treatment points. The results showed that an aerial campaign could eliminate the vector from the island and this optimism was vindicated by the success of a subsequent helicopter-based campaign completed in 2005.

Item Type: Article
Additional Information: [1] This paper was originally an oral presentation at The 3rd International Simuliidae Symposium, including the 29th meeting of the British Simuliid Group, the 7th European Simuliidae Symposium and EMCA Blackfly working group, held 9-12 September 2008, at the Institute of Ecology of Vilnius University, Vilnius, Lithuania. [2] The abstract from this paper, together with abstracts from the oral presentations and posters, was published in the Abstract book (ISBN 978-9955-33-311-1).
Uncontrolled Keywords: simulium yahense, Bioko, insecticide
Subjects: S Agriculture > SB Plant culture
Faculty / Department / Research Group: Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Agriculture, Health & Environment Department
Related URLs:
Last Modified: 11 Oct 2012 10:20
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/1928

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