Fig 5. Surface of capped brood.

Evolution of the surface of a honey bee colony capped brood (mean number of sealed brood cells ± SE) for each management strategy (n = 5 colonies per treatment) over a one-year period (from May 2016 to May 2017), including surveys before pollination, during blueberry pollination and cranberry pollination, after pollination and after wintering. Significant differences between treatments (p < 0.01 based on post hoc Tukey’s test—HSD) are shown with different letters.