Honey bee hives have living immune systems built from local plants
Honey bee colonies use chemical defences built from local plants with different strategies in different hive zones.
A healthy honey bee hive hosts bacteria and fungi, some harmless and some dangerous. Healthy colonies manage infections well.
Researchers from NSW apiaries studied 24 colonies to understand how. The hive has zones: brood at the centre tended by nurse bees, food stores beyond, and entrance where foragers come and go.
Each zone uses different chemical defences. Honey contains hydrogen peroxide found in antiseptic bottles.
Propolis uses flavonoids, the antioxidants in red wine and green tea. When pollen ferments into 'bee bread', it develops short-chain acids.
Hive materials were strongest in colonies surrounded by diverse flowering plants. Bees forage only a few kilometres from home.
Local plants determine what they eat and raw materials for their chemical defences. When native plants are cleared and flowers become less diverse, bees lose access to a wider chemical toolkit.
- 24 from New South Wales apiaries
- Colonies studied
- A few kilometres from home
- Foraging range
Why it mattersThis reveals that bee health depends on controlling pests and diseases directly. But it also depends on keeping diverse plants and animals in the landscape around colonies.
AustraliaFor Australian beekeepers and conservation efforts, the research suggests that protecting native flowering plants is as important as traditional disease management for keeping colonies healthy.
✓ Claims checked against the source. checked 2 h ago
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