Attracting, trapping and killing disease-transmitting mosquitoes using odor-baited stations - The Ifakara Odor-Baited Stations

Attracting, trapping and killing disease-transmitting mosquitoes using odor-baited stations - The Ifakara Odor-Baited Stations

BACKGROUND: To accelerate efforts towards control and possibly elimination of mosquito-borne diseases such as malaria and lymphatic filariasis, optimally located outdoor interventions could be used to complement existing intradomicilliary vector control methods such as house spraying with insecticid...

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Bibliographic Details
Published in:Parasites & vectors Vol. 3; no. 1; p. 12
Main Authors: Okumu, Fredros O, Madumla, Edith P, John, Alex N, Lwetoijera, Dickson W, Sumaye, Robert D
Format: Journal Article
Language:English
Published: England Springer-Verlag 01-03-2010
BioMed Central Ltd
BioMed Central
BMC
Subjects:
Anopheles arabiensis
arboviruses
Care and treatment
Control
Culex
Distribution
field experimentation
filariasis
Health aspects
humans
Insecticides
malaria
Mansonia
Marine
mosquito-borne diseases
Mosquitoes
odors
pirimiphos-methyl
Prevention
residential housing
Risk factors
spraying
toxicity
trapping
traps
vector control
Vector-borne diseases
United Kingdom
Tanzania
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Summary:BACKGROUND: To accelerate efforts towards control and possibly elimination of mosquito-borne diseases such as malaria and lymphatic filariasis, optimally located outdoor interventions could be used to complement existing intradomicilliary vector control methods such as house spraying with insecticides and insecticidal bednets. METHODS: We describe a new odor-baited station for trapping, contaminating and killing disease-transmitting mosquitoes. This device, named the 'Ifakara Odor-baited Station' (Ifakara OBS), is a 4 m3 hut-shaped canvas box with seven openings, two of which may be fitted with interception traps to catch exiting mosquitoes. It is baited with synthetic human odors and may be augmented with contaminants including toxic insecticides or biological agents. RESULTS: In field trials where panels of fabric were soaked in 1% pirimiphos-methyl solution and suspended inside the Ifakara OBS, at least 73.6% of Anopheles arabiensis, 78.7% of Culex and 60% of Mansonia mosquitoes sampled while exiting the OBS, died within 24 hours. When used simply as a trap and evaluated against two existing outdoor traps, Ifakara Tent trap and Mosquito Magnet-X®, the OBS proved more efficacious than the Ifakara Tent trap in catching all mosquito species found (P < 0.001). Compared to the Mosquito Magnet-X®, it was equally efficacious in catching An. arabiensis (P = 0.969), but was less efficacious against Culex (P < 0.001) or Mansonia species (P < 0.001). CONCLUSION: The Ifakara OBS is efficacious against disease-carrying mosquitoes including the malaria vector, An. arabiensis and Culicine vectors of filarial worms and arboviruses. It can be used simultaneously as a trap and as a contamination or killing station, meaning most mosquitoes which escape trapping would leave when already contaminated and die shortly afterwards. This technique has potential to complement current vector control methods, by targeting mosquitoes in places other than human dwellings, but its effectiveness in the field will require cheap, long-lasting and easy-to-use mosquito lures.
Bibliography:http://dx.doi.org/10.1186/1756-3305-3-12
ObjectType-Article-1
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ISSN:1756-3305
1756-3305
DOI:10.1186/1756-3305-3-12