Managing Small Hive Beetle

A Holistic Approach to Hive Health

Small hive beetles can be one of the most frustrating challenges for beekeepers, often leading to colony losses and discouragement. However, understanding these pests from a natural beekeeping perspective opens up new ways of managing them that work with, rather than against, the bees’ own defense mechanisms.

Understanding Small Hive Beetle Behavior

Origins and Natural Role

The small hive beetle (Aethina tumida) originated in Africa, where they evolved alongside honeybees.

According to research from the University of Florida Entomology Department, in their native habitat, these beetles are only an occasional pest in colonies of African subspecies of honey bees. They play a natural role in breaking down failing colonies, much like vultures in nature.

However, when introduced to new environments without natural controls, they can cause damage to colonies of European subspecies of honey bees when colonies are stressed and managed conventionally.

Understanding Beetle Behavior

What many beekeepers don’t realize is that female beetles are actually triggered to lay eggs by stress signals from the colony.

Research from the University of Florida’s Department of Entomology and Nematology has shown that small hive beetles can detect honey bee alarm pheromones. They even carry a yeast (Kodamaea ohmeri) on their bodies that produces similar compounds when deposited on pollen reserves in the hive.

When bees are disturbed – especially when we open hives for inspection – they release stress pheromones that attract female beetles. Research published in the Journal of Integrated Pest Management confirms that “being mindful of the amount of time spent during hive inspections is important, as prolonging this time can stress colonies and lead to the release of A. mellifera alarm pheromone, which is known to attract A. tumida adults.” This scientific finding validates what natural beekeepers have long observed – that frequent hive inspections can actually increase beetle problems.

The beetle’s reproductive strategy is clever but devastating:

• Female beetles detect colony stress
• They seek out brood areas rich in pollen
• Eggs are laid in protected crevices
• Larvae feed on pollen, honey, and brood
• The cycle accelerates as colony stress increases

How Bees Naturally Manage Beetles

Research shows that African bees‘ resistance to beetle infestations comes from quantitative differences in a series of natural behaviors including absconding, aggression, removal of beetle eggs and larvae, and social encapsulation – not from any single special trait. In a healthy colony, these defense mechanisms work together very well. Most impressively, soldier bees actively corral beetles into “prisons” made of propolis, often seen on the top bars of framed hives between the frame and the vinyl mat, and in the corners and edges of the hive. This “encapsulation” strategy limits beetle activity and prevents them from reproducing. However, research has shown that even imprisoned beetles have evolved clever survival strategies – they can trick their bee guards into feeding them by tapping the bees’ mandibles with their antennae, mimicking normal bee-to-bee food exchange behavior.

The bees also protect their colony by reducing the entrance size with propolis and maintaining constant patrols around the brood area.

Unfortunately, every time we open a conventional or any framed hive and peel back that vinyl mat or cover, we release these trapped beetles. Watch closely and you’ll see them run and dive straight down into the brood area – precisely where the bees have been working so hard to keep them away from. It’s no coincidence that this is where the pollen is stored, which beetle larvae need for food. This creates a devastating cycle where our well-intentioned inspections actually make the problem worse.

Hive Design and Beetle Management

After years of observation and direct experience, I’ve found that framed hives provide the perfect beetle habitat. The numerous gaps, corners, and crevices in conventional Langstroth hives give beetles endless hiding places where bees simply can’t reach them.

In contrast, Kenyan top bar hives offer several crucial advantages for natural beetle management:

• Clean design with fewer hiding places for beetles
• Wide, flat walls that are easier for bees to patrol and defend
• Simple structure that supports bees’ natural behaviors
• Ability to access honey stores without disturbing the brood area
• Bees can effectively herd beetles away from brood to the honey end of the hive

The evidence from my own apiary speaks for itself – in over 12 years of keeping both types of hives side by side in the same location, I’ve never lost a single Kenyan top bar hive to beetles. During that same period, I’ve lost multiple framed hives to beetle infestations, including Langstroth, Warre, and Golden hives. This happened even though all hives were managed with the same natural approach and no chemical treatments.

Working With Your Bees Against Beetles

The key to successful beetle management is minimizing colony stress and supporting the bees’ natural defense mechanisms. This means:

Reduce Hive Inspections

• Only open the hive when necessary
• Learn to read colony health from outside observation
• Trust the bees’ ability to manage their space

Support Natural Behaviors

• Allow bees to maintain their propolis barriers
• Don’t release trapped beetles during inspections
• Help squish beetles you spot during necessary inspections
• Use bees that show defensive behaviour towards beetles

Prevention Through Colony Strength

A strong, unstressed colony is your best defense against hive beetles. Focus on:

Diverse Forage

• Plant bee-friendly flowers with different blooming times
• Ensure access to varied pollen sources

Appropriate Hive Size

• Don’t give bees more space than they can patrol
• Use follower boards to adjust hive volume
• Allow colonies to expand naturally

Natural Behaviors

• Let bees build their own comb
• Support propolis collection
• Minimize interference with the brood nest

Conclusion

Managing hive beetles doesn’t have to mean relying on traps, chemicals, or constant interventions. By understanding beetle biology, supporting natural bee behaviors, and choosing appropriate bees and hive designs, we can work with our bees to maintain healthy colonies that have learnt to live with beetle pressure.

The next time you’re tempted to open your hive for an inspection, remember that every inspection creates an opportunity for beetles. Instead, take a moment to observe your bees’ behavior at the entrance. Often, they’ll tell you everything you need to know about the colony’s health without ever lifting the lid.

Remember: it’s not about eliminating beetles entirely – they’re part of the ecosystem. The goal is supporting your bees in maintaining a healthy balance, just as they’ve done for millions of years before our intervention.

References

For more detailed information about small hive beetles:

• University of Florida Department of Entomology and Nematology: https://entnemdept.ufl.edu/creatures/misc/bees/small_hive_beetle.htm
• Wikipedia article on Small Hive Beetle (Aethina tumida): https://en.wikipedia.org/wiki/Small_hive_beetle
• Roth, M.A., Wilson, J.M., Gross, A.D. (2022) Biology and Management of Small Hive Beetles. Journal of Integrated Pest Management, 13(1)
• Neumann, P., Elzen, P.J. (2004) The biology of the small hive beetle (Aethina tumida, Coleoptera: Nitidulidae): Gaps in our knowledge of an invasive species. Apidologie, 35(3), 229-247