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|Title: ||The ecology of mosquitoes in an irrigated vegetable farm in Kumasi, Ghana: abundance, productivity and survivorship|
|Authors: ||Afrane, Yaw A|
Lawson, Bernard W
|Keywords: ||Urban malaria|
|Issue Date: ||2012|
|Publisher: ||. Parasites & Vectors|
|Citation: ||Afrane et al. Parasites & Vectors 2012, 5:233|
|Abstract: ||Background: Irrigated vegetable farms within the city of Kumasi, Ghana, create hotspots for the breeding of
malaria vectors, which could lead to high transmission of malaria. This study investigated the abundance and
productivity of mosquitoes in an irrigated vegetable farm in Kumasi, Ghana.
Methods: Adult mosquito productivity was estimated five days in a week in different irrigated scheme types
(dug-out wells, furrows and footprints) for 12 weeks using emergence traps. Larval sampling was done five days a
week to estimate the abundance of larvae from the different irrigated schemes types.
Results: Mosquito breeding in the irrigated vegetable field was confined to dug-out wells, furrows and human
footprints. Mosquito productivity (m2/week) was highest in the dugout wells followed by the human footprints and
the least was in the furrows (11.23, 5.07 and 4.34 An. gambiae/m2/week). Larval abundance for the late instars
(3rd, 4th and pupae) also followed the same trend, with the dug-out wells having the highest larval abundance
followed by the human footprints and then the furrows (13.24, 6.81, 5.87 larvae/week). Mosquito productivity and
abundance was negatively correlated with rainfall (R2 = 0.209; P< 0.01).
Conclusion: This study showed that adult and larval mosquito abundance and larval survival were high in the
irrigated fields in the irrigated vegetable farm. This therefore, contributed significantly to adult mosquito
populations and hence malaria transmission in the city.|
|Description: ||Afrane et al. Parasites & Vectors 2012, 5:233. Also available onlin at
|Appears in Collections:||College of Health Sciences|
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