How to Combine Two Hives with the Newspaper Method

A honey bee colony survives winter by clustering and generating heat, and cluster physics scale badly downward. A small cluster has more surface area per bee, loses heat faster, cannot move as far to reach stores in cold weather, and has fewer bees to rotate through the warm center. A colony that is genuinely weak in October is not going to grow before spring, because the queen has stopped laying and every bee in that box is one the colony already has.

Combining changes the physics. Twelve thousand bees in one box behave completely differently than six thousand in each of two boxes, and the merged colony gets access to both colonies' stores at once, which is often the actual limiting factor. The rule of thumb across most of the country: a colony that cannot cover at least four or five frames of bees in late fall is a combine candidate rather than a winter candidate.

The other common reason is queenlessness. A colony that lost its queen in August, failed to raise a replacement, and has no eggs to work with is a population of workers on a countdown. Merging it onto a queenright colony converts those bees into extra strength somewhere useful instead of a slow dwindle and a deadout you diagnose in March using the deadout guide.

The season is the axis everything turns on. In April, a weak colony has three months of buildup ahead of it and almost any intervention works; a purchased queen and some syrup fixes most problems. In late September, there is no buildup left, and the only two honest choices are combining or a deliberate, well-prepared nuc overwintering with insulation and feed density.

The middle case, midsummer, deserves care. A colony that goes queenless in July can still be requeened successfully and build enough population for winter, so combining a July colony is often premature. Get the queen in fast, feed it, and reassess in six weeks. The introduction sequence is in how to requeen a hive.

When both colonies are queenright, you have to choose, because a merge with two queens ends with the bees choosing for you and quite possibly killing both. Judge on evidence, not sentiment.

Age. Younger wins, other things equal. A first-year queen lays more, swarms less, and is more likely to survive to spring than a two or three-year-old. If you mark queens, this is a two-second decision.

Brood pattern. The strongest single indicator. Solid slabs of capped worker brood in a tight oval mean a queen doing her job. A shotgun pattern of scattered cappings among empty cells means a failing queen, a poorly mated one, or a brood problem, and none of those are what you want heading your combined colony.

Temperament. If one colony is noticeably defensive and the other is calm, keep the calm queen. Temperament is heritable enough that this decision pays for years, and a hot colony in a backyard is a neighbor problem waiting to happen.

Population and stores. Slight edge to the colony that is thriving, since population reflects the queen's recent laying. But be careful: a colony can be strong because it is older, not because its queen is better.

Practically, that means finding both queens, which is easier said than done in a populous colony. A queen catcher makes the actual handling safe. The YOFAN queen bee catcher set ($9.95) is ten dollars for the clips and marking hardware that let you secure a queen without pinching her, which matters whether you are keeping her, caging her, or moving her to a nuc.

One queen has to go, and beginners find this the hardest part of the job. Three legitimate options.

Pinch her. The standard practice: pick her up and crush the thorax quickly. It is instantaneous and it is what most beekeepers do. Do it away from the hive and do not leave the body on the frames, because queen pheromone lingering in the box confuses the merge.

Bank her in a nuc. The option worth knowing about. Put the losing queen into a five-frame nuc with two frames of brood, a frame of stores, and a good shake of nurse bees, and you have a spare mated queen instead of a dead one. A Mann Lake Pro Nuc ($38.81) is the whole cost, and a mated queen in a nuc in September is worth a great deal in March, when queens are unavailable and somebody's colony is queenless. Whether she can winter in that nuc is a real question with a real answer in how to overwinter nucs.

Give her away. Local clubs almost always have someone who needs a queen. A caged mated queen travels fine for a short trip, and this is the option that makes the whole business feel less grim.

What not to do: leave both queens in and hope. The colonies will fight, and the outcome is unpredictable. It is entirely possible to lose both and end up with a large, queenless population in October, which is worse than either colony was to start with.

1. Prepare both colonies. Confirm which queen you are keeping, dispatch or bank the other one, and if the weaker colony is queenless, verify that it does not have laying workers (multiple eggs per cell, drone brood in worker comb). Reduce both colonies down to the boxes that actually hold bees and brood; you do not want to merge a lot of empty space.

2. Choose the location. The combined colony should end up on the stronger colony's stand. Foragers navigate to a remembered location, so the bees from the moved colony will drift back to their old spot for a day or two regardless; the old stand can hold an empty box for a couple of evenings to collect them, and they get shaken into the merged hive after dark. The reason for that behavior is the same forager fidelity described in how to move a beehive.

3. Open the queenright colony. Remove its inner and outer cover, leaving the top box open.

4. Lay one sheet of newspaper across the top bars. A single sheet, flat, covering the whole box. Two sheets take too long to chew and can leave the colonies separated long enough to raise queen cells; no sheet is a fight.

5. Cut two or three small slits. A hive tool or a pocket knife, an inch or two each. The slits give the bees a starting point and let a trickle of scent through. Do not perforate the paper heavily.

6. Set the second colony's box or boxes on top. Straight down onto the paper, aligned. Brood boxes above brood boxes.

7. Cover and walk away. Inner cover, outer cover, done. Total working time is often under ten minutes.

8. Wait 5 to 7 days. Then open and check: the paper should be chewed away with shredded confetti on the bottom board and outside the entrance, which is the visual sign the merge went well. Consolidate frames at that point, brood together in the bottom box, stores above, and pull any empty boxes.

Direct combine. Simply stacking the boxes with no barrier. It works more often than it should, especially during a strong flow when everyone is busy and full of nectar, and it fails badly when it fails. Not worth the risk when a sheet of newspaper is free.

The spray method. Misting both colonies lightly with sugar syrup, sometimes scented, so everyone smells the same and spends the next hour grooming. Fast, useful for merging small units like a swarm into a colony, and less reliable than newspaper for a full-colony merge in a dearth.

Screen board combine. A double-screen board separates the colonies while letting warmth and scent through, then gets removed after several days. It is the gentlest option, it lets you keep the two units functionally independent until you commit, and it is an extra piece of equipment most backyard keepers do not own.

Shake-and-add. For very small remnant colonies, sometimes the honest answer is to shake the bees onto the ground in front of a strong hive at dusk and let them beg their way in. Bees without a queen and without a home are usually admitted. Do not do this with a laying-worker colony's bees at the entrance of a hive you care about.

For nearly every backyard situation, newspaper is right: free, forgiving, self-timing, and it leaves visible evidence that the merge worked. The other methods are for specific circumstances rather than general use.

Combining works best while there is still enough population left to be worth combining. The failure mode nobody talks about is waiting: a beekeeper watches a queenless colony dwindle through September, hoping it turns around, and finally merges a thousand exhausted bees into a good hive in late October, contributing nothing while risking disruption at exactly the wrong moment.

Two operational notes on timing. Combine on a warm day when bees are flying, because a merge on a cold day means bees clustering and disturbed comb. And finish the merge before you complete winter preparation, not after: the merged colony gets one wrap, one mouse guard, one entrance reducer, and one feed plan, and doing that twice because you merged in November is wasted work. The sequence lives in how to winterize a beehive.

Merging a five-frame nuc into a full colony is the most common combine most backyard keepers actually do, usually in fall when a summer split did not develop, or when a queen bank nuc has served its purpose. It is the easiest version of the technique because the sizes are so different that resistance is minimal.

The mechanics: decide which queen lives, which is almost always the full colony's queen unless the nuc holds something better. Set an empty box on top of the strong hive, with a sheet of newspaper between, then transfer the nuc's five frames into that box in their original order, filling the remaining slots with drawn comb or foundation. Alternatively, if the nuc's frames are all you need, place them directly above the paper in a MayBee medium super box ($44.99) if your nuc frames are mediums, or in a spare deep if they are deeps, and pull the empty nuc box out of the yard.

Watch for two things afterward. First, the nuc's bees will drift back to the nuc's old stand for a couple of days, so leave a box there overnight or two and shake the collected bees into the merged hive after dark. Second, the merged colony can end up with more boxes than it needs, and a colony spread over too much space in October heats poorly. Consolidate down at the week-one check: brood in the bottom, stores above, no empty boxes.

Combining a nuc is also the fallback for a nuc overwintering plan that turns out to be too optimistic. If the little colony is not going to make it as an independent unit, merging in September beats losing it in January; the honest assessment criteria are in how to overwinter nucs.

Suspected American foulbrood, or any brood disease you have not identified. This is the absolute rule. AFB spores survive for decades, spread on comb and honey, and cannot be cleaned out of woodenware; merging an infected colony into a healthy one means you now have two infected colonies and a set of contaminated boxes. The classic signs are sunken, greasy, perforated cappings, a foul smell, and larvae that rope out when probed with a matchstick. If you see any of that, stop, do not move frames between hives, and read the American foulbrood guide, then contact your state apiary inspector. The general disease reading is at the extension bee health program and Wikipedia's overview of American foulbrood.

Laying workers. A colony queenless long enough that workers began laying is not a normal queenless colony. Those workers have developed ovaries, behave as though the colony is queenright, and will kill a queen introduced to them. Merging them into a good hive is a genuine risk to that hive's queen. The standard fixes are shaking the colony out a distance from the apiary so the bees beg into other hives while the laying workers largely do not make it back, or adding a frame of open brood weekly for three weeks to suppress the behavior. Tell-tale signs: multiple eggs per cell, eggs on cell walls rather than standing centered, and scattered drone brood in worker-sized cells.

Heavy varroa or visible deformed wing virus. Merging a mite bomb into a clean colony transfers the mites with the bees. Treat first if there is time, and if the colony is collapsing from mites, understand that merging spreads the problem rather than solving it. Thresholds and treatment windows are in when to treat for varroa.

A colony you cannot explain. If a colony is dwindling and you do not know why, find out before you merge. Combining is a fine solution to weakness with a known cause and a bad solution to a mystery.

Day 5 to 7. Open and confirm the paper is gone, with shredded confetti on the bottom board and outside the entrance. Consolidate: brood frames together in the bottom box, honey frames above, empty and unused boxes off. A merged colony spread across four boxes in October is worse off than the same bees in two.

Confirm the queen. Look for eggs, not for her. Eggs mean the merge did not cost you the queen, which is the only real risk of the operation and an uncommon one with the newspaper method.

Assess weight. The merged colony now has both colonies' stores, which is often enough, but not always, since the weak colony may have contributed bees and no honey. Heft the back of the hive. If it is light, feed 2:1 syrup while the weather still allows it, per how to feed bees sugar syrup, and switch to solid feed once it turns cold. A BeeCastle 10-frame beehive candy board ($37.99) is the standard insurance policy above the cluster for a colony you are not fully confident about.

Week 2 and beyond. Treat the merged colony as a single normal hive: mite count, winter prep, entrance reducer, mouse guard, wrap if your climate calls for it. Note in your records which two colonies became this one and which queen survived, because in spring you will want to know whose genetics you are splitting back out.

Combining in fall and splitting in spring is not a failure loop, it is a management cycle, and plenty of experienced keepers run it deliberately: consolidate to survive winter, divide to expand in May. A colony merged in September and wintered strong is frequently the first hive in the yard to fill its brood box in April, which makes it the obvious split candidate.

Watch for the specific hazard of a merged colony in spring: it is bigger than your other hives at exactly the moment swarm season starts, so it hits congestion first. Two colonies' worth of bees in one box during the first real flow is a swarm looking for a reason. Super early, watch the bottom bars, and be ready to split on schedule rather than in reaction. The full sequence of levers is in how to prevent swarming, and the split methods are in how to split a hive.

Timing the spring split off a merged colony: the same go/no-go conditions as any split, meaning six or more frames of brood, drones flying, and eight to ten weeks of forage ahead. A wintered merged colony often hits those marks two to three weeks earlier than its neighbors, which is a genuine advantage if you were planning to buy a nuc anyway.

1. Two queens left in. The bees settle it, and sometimes they settle it by losing both. Find both queens, keep one, and deal with the other.

2. Too many sheets of newspaper. The colonies stay separated long enough for the upper unit to start queen cells or to fail to blend. One flat sheet with a few slits.

3. Too many slits, or no paper at all. A fast merge is a fight. The paper is a timer, and shredding it defeats the purpose.

4. Merging a diseased colony. The single most consequential error on this list. Diagnose before you merge, and never move frames between hives on a hunch.

5. Merging laying workers into a good hive. Those workers will kill the surviving queen. Shake them out instead.

6. Waiting too long in fall. A colony merged in late October contributes exhausted bees and disruption. Combine while there is still a colony to combine.

7. Leaving the merged colony spread across too many boxes. Consolidate at the week-one check so the cluster is not trying to heat empty space.

8. Forgetting the drifted bees. The moved colony's foragers cluster at the old stand for a day or two. Leave a box there and carry them over after dark, or lose them.