Figure 2. Effect sizes of floral resource effects. Differences in estimated marginal means between different types of floral resources are illustrated as dots. Error bars indicate 95% confidence intervals.P -values < 0.05 are shown. To avoid confounding effects with spray treatment (Amistar or control) only the control group was considered for the exposure period and the final assessment. No confidence intervals for the number of males for comparisons with buckwheat are shown as there were no adult males found in the control colonies placed in buckwheat cages.