Varroa Mites Pose a Mite-Y Threat to Bee Colonies #SecretsOfTheBees

National Geographic
National GeographicApr 26, 2026

Why It Matters

Enhancing bee grooming through selective breeding can curb Varroa‑borne diseases, safeguarding pollination and agricultural productivity.

Key Takeaways

  • Varroa mites transmit deformed wing virus, crippling bee health.
  • Mites mimic bee body plates, evading detection and treatment.
  • Powdered sugar dislodges mites, enabling collection for research.
  • Certain bee genetics boost grooming, reducing mite infestation.
  • Breeding grooming traits could limit virus spread across colonies.

Summary

The video highlights the devastating impact of Varroa destructor mites on honeybee colonies, emphasizing their role as vectors for the deformed wing virus that leaves bees with crippled wings and reduced survivability. It explains how these parasites have evolved to mimic the bee’s own body plates and hairs, making them difficult to detect and control.

Researchers demonstrate a simple yet effective method: dusting bees with powdered sugar to detach the mites, then shaking the hive to collect them for study. The footage also showcases a specially bred observation hive whose bees exhibit heightened grooming behavior, a trait that physically removes mites before they can transmit pathogens.

A key example is the comparison between typical honeybees and the genetically selected stock that regularly grooms itself, dramatically lowering mite loads. The narrator notes that if this grooming characteristic can be propagated through breeding programs, the spread of lethal viruses could be curbed.

The broader implication is clear: integrating mite‑resistant genetics into commercial apiaries could protect pollination services, reduce colony losses, and lessen reliance on chemical miticides, offering a sustainable path forward for the beekeeping industry.

Original Description

By studying Varroa mites and the bees they threaten, scientists like Dr. Sammy Ramsey are hopeful for a future where they no longer pose a threat. One of the ways mites can be captured for study is through a non-lethal process where bees are gently coated in powdered sugar, and the mites are shaken off for observation.
Learn more about how bee-havior can fight off these mites in Secrets of the Bees, now streaming on Disney+ and Hulu.
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Varroa mites pose a mite-y threat to bee colonies #SecretsOfTheBees
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