How to Combine Weak Bee Colonies Safely

Author: Hornsby Beekeeping  Date Posted:22 June 2026 

Every beekeeper eventually encounters a weak colony. Whether caused by queen problems, disease, poor weather, pests, or inadequate food stores, weak colonies often struggle to survive and thrive on their own.
While some weak hives can recover with proper management, others may never develop into productive colonies. In these situations, combining two colonies can be the most effective way to strengthen hive populations, improve survival rates, and prepare bees for future nectar flows.
However, combining colonies incorrectly can lead to fighting, queen loss, or even the collapse of both hives. Understanding when and how to combine colonies safely is an essential skill for both beginner and experienced beekeepers.

How Do You Combine Weak Bee Colonies?

The safest and most commonly used method is the newspaper method. This technique involves placing a sheet of newspaper between two colonies, allowing the bees to gradually become accustomed to each other's scent before fully merging. Before combining, beekeepers should always ensure that colonies are healthy and decide which queen will remain.

Why Would You Combine Bee Colonies?

Not every weak colony should be combined, but there are many situations where merging hives makes practical sense.
Common reasons include:
  1. A colony is too weak to survive winter.
  2. The hive has a failing or missing queen.
  3. The colony population is extremely small.
  4. Honey stores are insufficient.
  5. The colony has poor brood production.
  6. The hive has suffered significant losses due to pests or disease.
  7. You want to strengthen colonies before a major nectar flow.
Combining colonies often allows beekeepers to concentrate resources and improve overall apiary productivity.

What Is Considered a Weak Colony?

A weak colony typically lacks the population or resources needed to sustain itself successfully.
Signs of a weak colony include:
  1. Very few adult bees covering frames
  2. Small brood areas
  3. Poor brood patterns
  4. Limited honey and pollen stores
  5. Slow colony growth
  6. Reduced foraging activity
  7. Inability to defend the hive entrance
Weak colonies are particularly vulnerable during autumn and winter.

When Should You Combine Bee Colonies?

Timing plays an important role in successful colony merging.

Autumn

Autumn is one of the most common times to combine colonies.
Weak colonies entering winter often struggle to maintain adequate hive temperatures. Combining them can significantly improve overwintering success.

Early Spring

Spring combining may be beneficial when colonies emerge from winter with very low populations.
Merging weak colonies early allows them to build strength before major nectar flows begin.

During Nectar Dearths

Colonies experiencing prolonged periods without nectar may benefit from combining if they cannot maintain sufficient populations independently.

When Should You Avoid Combining Colonies?

Never combine colonies without first assessing their health.
Avoid combining colonies if:
  1. Disease is suspected.
  2. American foulbrood (AFB) is present.
  3. Severe European foulbrood (EFB) is detected.
  4. The colony shows signs of serious viral infection.
  5. Heavy pest infestations remain unmanaged.
Combining diseased colonies can spread problems throughout your apiary.
If disease is suspected, seek expert advice before proceeding.

Step 1: Inspect Both Colonies Thoroughly

Before combining, inspect each hive carefully.
Assess:
  1. Queen status
  2. Brood pattern
  3. Population size
  4. Honey stores
  5. Disease symptoms
  6. Pest levels
Determine which colony is strongest and healthiest.
This colony will usually become the receiving hive.

Step 2: Decide Which Queen to Keep

A combined colony should generally contain only one queen.
Keeping multiple queens may lead to fighting and queen loss.
In most cases, beekeepers retain:
  1. The younger queen
  2. The better-performing queen
  3. The queen from the stronger colony
If one colony is queenless, the decision becomes much simpler.
Remove the unwanted queen at least several hours before combining whenever possible.

Step 3: Equalise Hive Conditions

To improve acceptance:
  1. Reduce strong odours such as excessive smoke.
  2. Ensure both colonies have adequate food reserves.
  3. Minimise stress before combining.
  4. Avoid combining during poor weather.
Combining colonies during calm conditions often produces better results.

The Newspaper Method: The Safest Way to Combine Colonies

The newspaper method is widely considered the most reliable technique.

How the Newspaper Method Works

The newspaper acts as a temporary barrier between colonies.
As bees gradually chew through the paper, colony scents slowly mix, reducing aggression.

Step-by-Step Newspaper Method

1. Prepare the Receiving Hive

Choose the stronger colony as the bottom hive.
Ensure this colony contains the queen you wish to keep.

2. Remove the Extra Queen

Locate and remove the queen from the weaker colony.
Failing to remove the extra queen may result in queen conflict.

3. Place Newspaper Over the Lower Hive

Lay one or two sheets of ordinary newspaper across the top brood box.
Some beekeepers make a few small slits in the paper to encourage gradual mixing.

4. Position the Second Hive Above

Place the brood box from the weaker colony directly on top of the newspaper.
Replace the hive lid as normal.

5. Allow the Bees to Merge Naturally

Over several days, workers chew through the newspaper and slowly unite.
Most colonies merge successfully with minimal fighting.

Alternative Colony Combining Methods

Although the newspaper method is most common, other techniques exist.

Direct Combining

Some experienced beekeepers directly merge colonies by placing frames together.
However, this method carries a greater risk of fighting and is generally not recommended for beginners.

Scent Masking Techniques

Light sugar syrup sprays or scented sprays may sometimes help mask colony odours during combining.
These methods are often used alongside the newspaper technique.

How Long Does Colony Integration Take?

Most combined colonies unite fully within several days.
You can usually inspect the hive approximately one week after combining.
During inspection, check for:
  1. Normal bee behaviour
  2. Signs of queen acceptance
  3. Fresh eggs and brood
  4. Adequate food stores

Signs That a Colony Combination Was Successful

Successful combinations typically show:
  1. Calm behaviour at the entrance
  2. Continued brood production
  3. Normal foraging activity
  4. Minimal fighting
  5. Increasing population size
The colony should begin functioning as a single unit relatively quickly.

Common Mistakes to Avoid When Combining Colonies

Avoid these common errors:
  1. Combining diseased colonies
  2. Forgetting to remove one queen
  3. Combining colonies during poor weather
  4. Disturbing the hive too soon afterwards
  5. Combining extremely aggressive colonies without caution
  6. Failing to assess food reserves
Careful preparation significantly improves success rates.

Can You Combine More Than Two Colonies?

Yes, in some situations multiple weak colonies may be combined.
However, beekeepers should proceed cautiously and ensure:
  1. Only one queen remains
  2. Disease is absent
  3. The final colony has adequate space
Large combinations may require additional hive equipment.

Benefits of Combining Weak Colonies

Successfully combining weak hives can provide several advantages:
  1. Improved winter survival
  2. Stronger populations
  3. Better brood production
  4. Increased honey yields
  5. More efficient resource use
  6. Reduced management costs
For many beekeepers, combining weak colonies is an important part of seasonal hive management.

Conclusion

Combining weak bee colonies can be an effective strategy for improving colony survival and strengthening your apiary. By carefully assessing colony health, selecting the best queen, and using proven techniques such as the newspaper method, beekeepers can safely merge colonies with minimal disruption. Strong colonies are better equipped to withstand seasonal challenges and produce productive honey crops.
If you need hive management advice, queen replacement supplies, or quality beekeeping equipment, Hornsby Beekeeping Supplies is here to help. Contact our experienced team on +612 9477 5569 or email info@hornsby-beekeeping.com for trusted products and expert beekeeping support.

Frequently Asked Questions

Can I combine two queenright colonies?

Yes, but one queen should usually be removed before combining to prevent conflict between queens.

What is the best time of year to combine colonies?

Autumn and early spring are generally the most common times to combine weak colonies.

Can weak colonies recover without combining?

Some weak colonies can recover with feeding, requeening, and proper management, depending on the underlying cause.

How long should I leave the newspaper in place?

The bees will typically chew through the newspaper within a few days, after which it can be removed during the next inspection if necessary.

Should I combine a colony that has disease?

No. Colonies showing signs of serious disease, particularly American foulbrood, should never be combined without professional guidance.

Leave a comment

Comments have to be approved before showing up