Fig. 1
Images b, c and d sourced from the manufacturer at (https://eu.biogents.com)
Line drawings of the four mosquito traps used in the experiment. IF inlet funnel, F fan, CB catch bag, CO2 point of CO2 release, OL odour lure. Arrows indicate air flow. a Representation of the Passive Box trap, which releases its odour plume via natural airflow; b the BG-Sentinel 2 trap, where mosquitoes are attracted by an odour plume and are sucked into the trap by an electric fan. Mosquitoes are caught in a catch bag and hence remain undamaged by the fan; c the BG-Suna trap, which functions essentially the same as the BG-Sentinel 2; however, mosquitoes are sucked upwards, through the fan; d the BG-Bowl trap, where air flow patterns and capture mechanism are the same as in the BG-Sentinel 2 trap.