Queen Series: Queen Biology and Quality with Dr. David Tarpy (382)

In this episode, Jeff Ott and Becky Masterman launch a new series focused on honey bee queens with leading researcher Dr. David Tarpy. From the start, the conversation challenges a common oversimplification: the queen is not just an "egg-laying machine," but part of a dynamic, cooperative system shaped by both biology and worker perception.

Tarpy explains that queen quality extends beyond visible traits like brood pattern. Instead, it includes physical characteristics such as body size, mating success, and sperm viability—factors that set the upper limit, or "ceiling," of colony performance. However, he emphasizes that brood pattern is often a colony-level trait, influenced as much by workers, environment, and disease pressure as by the queen herself.

A key insight from the discussion is that colonies do not evaluate queens based solely on pheromones produced by the queen. Brood pheromones and, importantly, the workers' ability to perceive those signals play a major role in whether a queen is accepted or replaced. This helps explain why strong queens are sometimes superseded while weaker ones persist.

The conversation also explores the impact of queen handling and shipping. Temperature stress—both overheating and chilling—can reduce sperm viability without visibly harming the queen, leading to premature failure later in the season. For beekeepers, this underscores the importance of careful handling between receipt and installation.

Tarpy shares insights from his long-running queen health clinic, where most "problem queens" sent in for analysis turn out to be biologically sound. In many cases, environmental factors such as pesticide exposure or colony stress are the underlying issue.

This episode sets the stage for the series by reframing how beekeepers think about queens—not as isolated individuals, but as part of a complex, responsive colony system.

Websites from the episode and others we recommend:

• North Carolina State Apiculture Program: https://www.ncsuapiculture.net
• North Carolina State Queen & Disease Clinic: https://pollinators.ces.ncsu.edu/apiculture/queen-disease-clinic/
  
• Honey Bee Health Coalition: https://honeybeehealthcoalition.org
• Project Apis m. (PAm): https://www.projectapism.org
• The National Honey Board: https://honey.com
• Honey Bee Obscura Podcast: https://honeybeeobscura.com

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We hope you enjoy this podcast and welcome your questions and comments in the show notes of this episode or: questions@beekeepingtodaypodcast.com

Thank you for listening!

Podcast music: Be Strong by Young Presidents; Epilogue by Musicalman; Faraday by BeGun; Walking in Paris by Studio Le Bus; A Fresh New Start by Pete Morse; Wedding Day by Boomer; Christmas Avenue by Immersive Music; Red Jack Blues by Daniel Hart; Bolero de la Fontero by Rimsky Music; Perfect Sky by Graceful Movement; I'm Not Running Away This Time by Max Brodie; Original guitar background instrumental by Jeff Ott.

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Copyright © 2026 by Growing Planet Media, LLC