Percent of female <i>Anopheles gambiae</i> mosquitoes choosing either treatment A or B in a semi-field dual choice assay.

<p>The effect of autoclaving on attraction of female <i>Anopheles gambiae</i> mosquitoes to untreated (―) and odour baited (blend IB1) (+) nylon strips was assessed. Nylon strips were either non-autoclaved (―) or autoclaved (+). The total number of mosquitoes released (N) for each dual choice test, replicated during four nights, was 800. The total number of mosquitoes trapped per choice test (n) is shown. Error bars represent standard errors of the mean. Bars followed by * denote significant differences (P < 0.05) in mosquito catches between treatments.