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

Fig 7. Sacbrood virus (SBV) virulence.

Fig 7

SBV 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.