ArticleMalaria journal2025
Innovative water management for vector control: the case of rice cultivation in Burkina Faso's Vallée du Kou.
Article in Malaria journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundA new water-saving techniques involves minimal tillage and intermittent flooding has the advantage of reducing the production of mosquito larvae, which could in turn reduce the density of adult mosquitoes. The aim of this study was to evaluate the impact of a new water-saving technique on reducing the number of Anopheles breeding sites in an area with a high density of the main malaria vector.
methodsThe study was conducted in experimental rice plots measuring 5.5 × 3.0 m (16.5 m
resultsThe results of this study demonstrate that minimum tillage combined with intermittent flooding significantly reduced larval densities, by up to 80% at the transplanting stage and nearly 85% at maturation (Kruskal-Wallis test, p-value < 0.05). The reduction was less pronounced during the tillering stage. The average density of adults collected from houses in the intervention village fell from 3.89 mosquitoes per house in the pre-intervention phase to 1.16 mosquitoes per house in the post-intervention phase, compared with 6.62 and 6.63 in the control village. A substantial reduction of more than 85% in the mosquito population at the intervention site, Vallée du Kou 2 (VK2), compared to the control site (VK3) was observed (Fisher's Exact Test: p-value = 0.003). A reduction in insemination status and a shift towards younger males unable to mate was observed.
conclusionsThe combination of minimal tillage with intermittent flooding and targeted swarm control substantially reduced mosquito populations and shows promise as an integrated malaria vector control strategy.
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