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Fig. 1 | Malaria Journal

Fig. 1

From: Development of a chimeric odour blend for attracting gravid malaria vectors

Fig. 1

Assessment of ratio-varied blends for the attraction of gravid Anopheles arabiensis. Synthetic blends, composed of bioactive volatile organic compounds identified as shared among the three domesticated grass species (maize, sugarcane and rice) attractive to gravid An. arabiensis, are compared to the synthetic rice odour blend [9,10,11]. The ratio of the individual compounds was varied, as detailed in the table below the graph. The ratio of compounds in the first blend tested (AV) represents the average release rate of individual compounds among the domesticated grasses. Synthetic blends were evaluated sequentially, varying the ratio of only one compound at a time. The most preferred ratio was maintained in subsequent blends (left to right). The response variable is presented as a preference index. Asterisks indicate a significant preference for either the synthetic rice blend or the ratio-varied blends. Ten replicates, of 10 mosquitoes each, were used in each behavioural experiment

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