Figure 1.

Y-tube olfactometer raw choice data for sterile male B. tryoni that were RK-unfed (top) or RK-fed (bottom) across 40 runs. Each bar shows the number of males selecting cuelure (red), no cuelure (blue) or no choice (grey). The trials were all run in 2018, with the date of each run shown above the bars, separated by vertical dotted lines.