A bee swarm can be lured by placing a bait hive of 40–45 liters stocked with old brood comb and a pheromone lure like lemongrass oil or Swarm Commander, positioned 15–20 feet high in shade with a south-facing entrance.
A bait hive that looks, smells, and feels like a home is the difference between an empty box and a free colony. This covers the exact cavity size, lure setup, placement strategy, and manual capture steps that give you the best odds.
What Makes A Bait Hive Irresistible?
Scout bees compare every cavity against a narrow set of preferences. Miss any and the scouts leave without reporting back. The critical specs come down to volume, entrance size, and an old-comb scent signature that tells bees “another colony thrived here safely.”
The ideal bait hive is a standard deep Langstroth box with six frames. One frame must be drawn comb — preferably old, black brood comb that carries years of wax pheromones. The remaining frames can be foundationless starter strips or empty frames; scout bees want space to build on, not full comb.
Entrances matter more than most beginners realize. The opening must be 2 to 5 square inches — roughly the size of a deck of cards on edge. A small entrance is easier to defend and holds warmth better than a gaping opening. Of the bees that find your trap, more will choose it if that entrance faces south, where morning sun warms the cavity earliest.
What Lures Work Best: Pheromone Gels And Oils
Two main attractant categories reliably draw scouts. Lemongrass essential oil contains citral, a compound structurally similar to the honey bee’s Nasonov gland pheromone that signals “home is here.” Swarm Commander gel and Super Lure are commercial synthetic blends designed to mimic the queen’s mandibular pheromones, which signal to scout bees that a queen is already present.
The single most common mistake — and the one that repels the very bees you want — is over-application. One drop of lemongrass oil, or the equivalent squirt from a commercial tube, is enough. More than that reads as “something rotten here” to a scout, and she will leave. A good method is mixing 20 drops of lemongrass oil with olive oil and beeswax to form a paste, then dabbing a pea-sized amount on the top bars, the inner cover rim, and one spot at the entrance.
Never add honey to a bait hive. Honey attracts ants, wax moths, and small hive beetles. Old brood comb provides all the food scent a swarm needs, without inviting the pests honey draws.
Where To Place The Trap: Height, Shade, And Treeline Edge
Scout bees find traps fastest when the box is visible from a treeline edge. Ideal placement is on a low tree limb in a field, not deep inside forest shade. The preferred height range is 15–20 feet, though traps set at 10 feet or even 6 feet still catch swarms regularly — convenience for the beekeeper matters too.
Secure the box level using ratchet straps. A tilted trap looks structurally unstable to bees. Face the entrance south, and make sure the box sits in afternoon shade — direct sun through the middle of the day can bake a bait hive into an oven, and no scout will recommend an oven.
Step-By-Step: Setting A Swarm Trap
Here is the sequence that gives you the best chance of a catch within the first swarm season.
- Prepare the box. Use a clean deep hive body. Place one frame of old black brood comb against the left or right wall. Fill the remaining slots with foundationless frames or starter strips.
- Apply the lure. Dab lemongrass paste or Swarm Commander gel on the top bars of the brood frame, the underside of the inner cover, and a small amount at the entrance. One drop equivalent total is the hard limit.
- Position the trap. Secure the box to a tree branch with ratchet straps at the chosen height. Level it. Face the opening south.
- Wait and check. Inspect every 7–10 days. A scout bee entering with pollen on her legs is the highest-confidence indicator that the trap has been accepted and the swarm is moving in.
- Do not disturb early. Once bees arrive, leave the box untouched for a minimum of 72 hours — one week is better. Disturbing a new colony too soon triggers absconding.
How To Capture A Swarm Manually (When One Clusters Nearby)
If a swarm clusters on a low branch or fence post instead of finding your bait hive, you can box it directly. The method requires a collection container — a nuc box, deep body, or large cardboard box with a screened window — plus basic protective gear.
| Step | Action | Key Detail |
|---|---|---|
| 1 | Wait for cluster to settle | Give the swarm 15–20 minutes after it lands; bees need time to organize around the queen |
| 2 | Approach from upwind | Bees smell you before they see you; upwind reduces defensive reaction |
| 3 | Apply one puff of smoke | A light puff at the cluster entrance signals “potential threat, fill your honey stomachs” — this makes bees less likely to fly |
| 4 | Position the box below the cluster | Open box directly under the swarm; a solid surface like a hive stand helps hold the box steady |
| 5 | Shake the branch sharply | One firm downward snap drops most of the cluster into the box; brush stragglers in with a bee brush |
| 6 | Confirm the queen is inside | Watch the box for a moment — if the bees left behind start fanning their Nasonov glands (lifting abdomens and exposing scent glands), the queen is inside |
| 7 | Cover and move | Place the lid or screen cover, secure the box with straps or tape, and move the swarm to its permanent location |
One easy way to increase your odds across a whole season is to put out multiple traps. Experienced beekeepers run three to five traps during swarm season and often catch more than they expect. If you need prepackaged attractants that take the guesswork out of the recipe, check our roundup of tested bee swarm lures ready for this season.
What To Do After You Catch A Swarm
The first week inside a new box is the colony’s most vulnerable window. Do not open the hive for at least one week. During that time the bees are building new comb, the queen is laying, and the colony is establishing its acceptance of the cavity. Opening too early — especially before the queen has started laying — erases that acceptance and the bees leave.
After one week, a quick look confirms success: check for fresh white eggs in the cells. Eggs mean the queen is present and laying. A second inspection after two weeks, once you see pollen-carrying foragers returning, confirms the colony is established and you can switch to normal management.
If you caught the swarm in a cardboard box or improvised container, transfer it to a permanent hive body within 48 hours. Cut the box open and place the cluster on top of the frames in the new box; the bees will march down into the hive on their own.
Financial and Legal Notes
Many beekeepers remove swarms at no charge — a donation for fuel is standard. If you are not a beekeeper yourself, report a swarm through Swarmed.org, which connects you to local beekeepers who will collect the bees humanely. In most US states, honey bee swarms must be relocated, not exterminated. Arkansas, California, and Florida have specific extension-office guidelines that name swarm removal protocols for both beekeepers and callers.
FAQs
Can I use a cardboard box as a swarm trap?
Yes, a large cardboard box with a screened window works as a short-term trap. It lacks the durability of a wood hive body, and boxes can collapse if it rains heavily. Repurpose it only for a few days until you either catch the swarm or transfer it to a permanent box.
Does lemongrass oil really attract honey bees?
Yes. Lemongrass oil contains citral, a compound similar to the honey bee’s own Nasonov scent that marks a cavity as home. It is the most widely used natural attractant among swarm-catchers and is especially effective for drawing scout bees to a new bait hive.
How long does it take for a bait hive to catch a swarm?
Most successful catches happen within the first three weeks of swarm season — typically March to June in the US. A trap placed early, before the main swarm flights begin, has the best odds. If a box sits empty through an entire swarm season, move it to a different location the following year.
What size entrance should a swarm trap have?
The opening should be 2 to 5 square inches — about the size of a credit card. A smaller entrance helps the colony defend itself and keeps the interior warmer at night. Larger openings make the trap feel drafty and unprotectable to scout bees.
Do I need to paint a swarm trap?
Painting the exterior extends the life of a wood bait hive but is not required for attraction. If you paint, use exterior latex in a light color (white, pale green, or light blue) to reflect heat. Avoid dark colors, which can turn the box into an oven in direct sun.
References & Sources
- Blythewood Bee Company. “How to Capture a Bee Swarm.” Core instructions for bait hive setup and manual capture.
- Bee Culture Magazine. “Swarm Catching” by Rusty Burlew. Details ideal cavity volume, entrance size, and placement height.
- Glory Bee. “Use This One Strange Trick to Catch a Swarm.” Lemongrass oil paste recipe and application method.
- Anne of All Trades. “How to Capture a Bee Swarm.” Pheromone lure details and scout bee behavior indicators.
- Betterbee. “Catching and Hiving a Swarm.” Queen confirmation methods and safety gear requirements.