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Effect of pheromone on number of sand flies attracted to chicken sheds following insecticide treatment. Number of sand flies (a. females; b. males; geometric means ± 95% CI) captured at chicken sheds over two nights before (grey bars) and after (white bars) treatment with insecticide, applied either with or without synthetic pheromone. * P < 0.05, ** P < 0.01, *** P < 0.001.
