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Image Number D214-1

To demonstrate Varroa-sensitive hygiene by SMR bees, a highly infested brood comb was cut into halves, and each half was placed in a cage with 2,000 test bees for 24 hours. Shown here is the brood comb of the control bees, which removed only 12 pupae and uncapped only another 19 pupae (33 percent of uncapped cells were infested with Varroa mites).

Photo by Jeffrey Harris.

640 pixels wide: (d214-1.jpg)

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