How Do I Prevent Swarms?

One of the most challenging events to anticipate and manage in beekeeping is swarm prevention. While swarming is a natural phenomenon in the life cycle of bees, it can be quite problematic for beekeepers, disrupting productivity in the process.

This guide will walk you through various effective strategies for swarm prevention. Understanding these techniques can help you maintain a healthy and thriving bee colony that continues to yield high-quality produce.

Types of Swarms

There are two primary types of swarms in a bee colony: overcrowding swarms and reproductive swarms. Each has its own unique characteristics and implications for both hobbyists and professional beekeepers.

Overcrowding Swarms

An overcrowding swarm occurs when the honey bees feel a lack of space in their current hive. This can be caused by the following factors:

Problem: Nectar being stored in the brood nest, making resources less accessible for bees and restricting their movements.

Solution: Add supers on top of the hive, to expand their space and provide the bees with more room to store nectar.

Problem: Honey or pollen is occupying the brood nest, leading to no space for the queen to lay her eggs and interrupting the colony's lifecycle.

Solution: Remove brood frames with honey, and add empty frames. The bees will get to work on drawing combs, and this will give the queen room to lay eggs.

Problem: Excessive movement and traffic in and around the brood nest, causing unrest and disturbance in the bee colony.

Solution: Use a top entrance to give foragers a way in without going through the brood nest. This reduces hive congestion and minimizes the risk of a swarm.

Reproductive Swarms

Many beekeepers think that simply adding a super will keep their honey bees from swarming in the spring, but this is not always the case. While adding a super does provide additional space for honey storage and aids in reducing hive congestion, it has a negligible effect on preventing reproductive swarming.

In the spring, when bees begin to bring in more pollen, they also naturally begin to rear more brood to build up their colony for the season. All these new bees require food, so they begin to eat their remaining honey stores from the winter.

As the bees eat, the honey stores deplete. This makes more room for a new brood. But when the bees reach their own determined limit for brood, they’ll begin to stop the queen from continuing to lay eggs by producing and storing honey in the brood nest once again. Once the brood nest is mostly full of honey, they start to build swarm cells. 

Upon capping these swarm cells, the queen leaves the hive with a large number of bees with her. At this point, even if you catch your swarm, the hive has stopped brood production and is down a large number of bees. The chances of this hive yielding honey become incredibly slim. Meanwhile, the remaining bees might also decide to swarm, led by one of the virgin queens.

Tips to Prevent Swarming

As a beekeeper, ensuring the stability of your hive is paramount. Here are some practical tips to control swarming and maintain a productive, healthy bee colony.

Split Your Hives

If signs of early swarms are observed before the main nectar flow, hive splitting is a recommended action.

Some beekeepers create a split by taking the old queen along with all but one frame of the open brood. The original hive is left with a capped brood, one brood frame of eggs/open brood, no queen, and empty supers. This method discourages new swarms. The original hive won't swarm without a queen, and the new hive won't due to its lack of foragers.

However, prevention is still the best strategy. Carefully monitoring your hives helps you prevent swarming from forming rather than dealing with them once they've begun.

Open the Brood Nest

Maintaining an expansive brood nest prevents it from backfilling and helps in keeping the nurse bees busy. If swarm signs are noticed before the development of queen cells, you can place empty frames within the brood nest, nestled between two frames.

The number of empty brood frames you will need to add depends on the size of your bee cluster, as these vacant frames need to be populated with bees that will construct new comb. As soon as the queen reveals this fresh comb, she will commence laying eggs.

An open brood nest allows nurse bees to stay busy with tasks such as building comb and taking care of the brood while expanding the nesting space.

Regular Hive Inspections

Consistent and thorough hive inspections serve as the bedrock of effective swarm prevention. It allows beekeepers to assess hive health, observe changes in bee behavior, and anticipate possible issues before they escalate.

Early detection of queen cells, for instance, can signal an impending swarm. By taking swift action, like requeening or hive splitting, one can often stave off a full-blown swarm situation.

Remember, quick intervention is key. A carefully observed hive is a healthier, more productive one and far less prone to the disruptions caused by swarming.

Requeen Regularly

An older queen's decreasing fertility often disrupts hive organization and promotes swarm behavior.

Inserting a new queen into the hive annually can maintain a steady, high-volume egg production. When worker bees stay busy with new broods, they are less likely to initiate swarming-related activities.

A direct result of requeening is a more stable hive leadership, reducing the frequency of swarming. Staying on top of this practice contributes significantly to a healthier, more productive colony.

Swarm Traps

Swarm traps act as a strategic first line of defense against potential swarms. Positioned near your apiary, these traps collect any bees on the brink of swarming, preventing widespread scattering.

Optimize these traps by incorporating old comb and lemongrass oil, both renowned for their irresistible appeal to swarms. This enhances the effectiveness of the traps, capturing the majority of the swarm before they venture too far.

Despite the unpredictability of swarms, traps remain a valuable tool for beekeepers. They assist in retaining a significant portion of your swarm, mitigating colony loss.

Provide Adequate Ventilation

A cool, well-ventilated hive reduces the risk of swarming significantly. Overheating within the hive can stress the bees, inducing the swarm instinct.

For effective ventilation, consider adding upper entrances or screened bottom boards to your hives. These features allow for better air circulation, maintaining an ideal temperature inside the hive.

Coordinating an ideal hive temperature with adequate ventilation not only prevents swarming but also contributes to the overall health of the colony. Therefore, investing effort in regulating the hive environment is vital.

Ensure Sufficient Food Supply

Keeping track of the hive's food can prevent a swarm. A constant supply of food is key for the colony, particularly for supporting brood growth. The healthier the brood, the lower the chance of swarming.

Keeping a close eye on honey and pollen levels helps prevent a potential food shortage. In circumstances where natural sources of nectar or pollen are sparse, supplemental feeding becomes necessary.

Consistently maintaining substantial food supplies inside the hive keeps the bees engaged in their tasks, reducing the potential for swarming and promoting overall colony health.

Discourage Congestion

A packed hive can push bees to swarm. It's not just a matter of tight quarters; a crowded hive can strain resources, making it harder for bees to perform their necessary duties.

One method to ward off congestion is using follower boards. These helpful tools are added inside the hive to direct the traffic flow of bees, setting up distinct sections for them to work in while helping them utilize all hive space effectively.

By effectively managing bee traffic and reducing congestion, you're creating a comfortable environment for your buzzing workforce. A happy bee is less likely to decide it's time to form a swarm, making this key to maintaining a productive and content colony.

Bee Species and Their Swarming Tendencies

One thing to consider during swarm preparations is the specific bee species involved. Some species are more prone to swarming than others, and knowing this can aid beekeepers in preemptive swarm control.

The table below explores the swarm tendencies of three common bee species:

Guiding Your Bees Toward Success

By understanding and anticipating their swarming behaviors, you can prevent swarming and raise healthier, more prolific colonies that resonate with the buzz of success.

Remember, every action in the hive contributes to whether a colony will swarm. And while this remains a daunting scenario for any beekeeper, colony swarms are not without solutions.

Now that you know more about swarming, you can do your best to ensure swarm control! Shop Mann Lake for swarming supplies and other beekeeping equipment!