Fig. 5

Aedes aegypti caught in inverted BG-Suna traps baited with CO₂, MB5 or MB5 + CO₂ in dual-choice experiments. Per treatment, four times 75 mosquitoes were released. Estimated marginal mean percentages are presented, assuming a binomial distribution and logit link function. Error bars represent standard errors of the mean. The asterisk (*) indicates a significant difference from a 50:50 ratio (GLM: 95% CI, P < 0.05). The letters a and b indicate differences between means of the treatments (GLM, LSD: P < 0.05). Relative humidity was included in the GLM model as covariate (P < 0.001). The trap entry response ‘R’ is expressed as the number of mosquitoes caught in both treatments divided by the number of released mosquitoes. There were no significant differences in ‘R’ (GLM, LSD: P > 0.05)