Fig. 1.
a Number of O. bicornis individuals per quadrate. b Number of B. terrestris individuals per quadrate. c Number of returning O. bicornis female at the nest trap entrance. d Number of returning B. terrestris individuals at the colony entrance over the exposure phases expressed as day after application (DAA). Treatments are shown as boxplots with median; the edges of the box indicate the 25th and 75th percentiles. Outliers are shown as circles. Asterisks indicate significant differences (*p < 0.05, ***p < 0.001); n.s. indicates non-significant differences
