# Bee Science: Spring Colony Growth - Managing Expansion, Nutrition, and Swarming

Page: https://stenobird.com/podcast/beekeeping-today-podcast-512758/bee-science-spring-colony-growth-managing-expansion-nutrition-and-swarming
Text version: https://stenobird.com/podcast/beekeeping-today-podcast-512758/bee-science-spring-colony-growth-managing-expansion-nutrition-and-swarming.md
Podcast: [Beekeeping Today Podcast](https://stenobird.com/podcast/beekeeping-today-podcast-512758)
Published: 2026-05-13T10:00:00+00:00
Episode link: https://beekeepingtodaypodcast.com/BTPS-spring-colony-growth
Audio file: https://dts.podtrac.com/redirect.mp3/traffic.libsyn.com/secure/beekeepingtodaypodcast/BSD-5-spring-growth.mp3?dest-id=2537132
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JSON: https://stenobird.com/v1/public/podcasts/beekeeping-today-podcast-512758/episodes/bee-science-spring-colony-growth-managing-expansion-nutrition-and-swarming
Duration seconds: 1221

## Resource

Spring is a season of rapid change inside the hive, and in this Bee Science segment, Dr. Dewey Caron walks through what drives colony expansion—and how beekeepers can respond effectively. Dewey emphasizes that spring growth is fundamentally tied to pollen availability and favorable flying weather. Colonies in warmer climates may expand gradually, while northern colonies often experience a compressed and intense buildup. This variability makes local awareness and timing essential. Nutrition plays a central role. Research going back to Heather Mattila's 2006 work shows that colonies receiving pollen or protein supplements begin brood rearing earlier and build stronger populations. More recent work reinforces that locally sourced pollen may improve effectiveness, and emerging commercial feeds are showing measurable gains in overwinter survival and pollination strength. As colonies grow, so does the risk of swarming. Dewey underscores the importance of proactive management—providing adequate space, maintaining ventilation, and monitoring brood nest congestion. Once swarm preparation begins, options narrow quickly, making early intervention key. The episode also introduces the "Goldilocks effect" in evaluating colony strength. Colonies that are too weak struggle to build, while overly strong colonies risk swarming. The goal is finding that "just right" balance through regular inspection, brood assessment, and strategic frame movement. Health risks remain present during this expansion phase. Diseases like European foulbrood and chalkbrood, along with pesticide exposure and nutritional stress, can limit colony development. At the same time, brood expansion creates ideal conditions for varroa reproduction, reinforcing the need for integrated management. Dewey's central message…

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