Skip to main content
. 2020 Jan 24;15(1):e0227970. doi: 10.1371/journal.pone.0227970

Fig 6. Black queen cell virus (BQCV) virulence.

Fig 6

BQCV copies (mean number of copies±SE) diagnosed in honey bee larvae within the four management strategies (MS) (n = 5 colonies per MS), including surveys before pollination, during blueberry pollination and cranberry pollination, after pollination and after wintering. Significant differences among MS (p < 0.01 based on post hoc Tukey’s test—HSD) are shown with different letters.