how to get the grub above the hive

Getting the grub above the hive is one of those beekeeping skills that sounds confusing until you see it done once. It means moving brood frames up from the lower brood chamber into the upper boxes, usually with a queen excluder keeping the queen below so she can't follow and start laying in your honey supers. Once you understand why it works, the whole process clicks.

The technique matters because a congested brood nest is the number one trigger for swarming. When the queen runs out of empty comb to lay in, the colony starts building queen cells and plans to leave. By managing where brood sits in the hive, you give the colony room to grow and keep honey production clean.

Let's walk through exactly how to do it.

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Quick Answer

You get grub above the hive by rearranging frames and using a queen excluder. Move frames containing brood from the lower brood chamber to the box directly above the excluder. The queen stays below because she can't fit through the excluder's gaps.

This gives the colony more space and prevents brood from contaminating honey supers. Do this in spring or early summer when the colony is building up and nectar is flowing.

How the Brood Nest Works (And Why Position Matters)

The Natural Layout of a Healthy Colony

In a standard Langstroth setup, the queen naturally prefers the lowest box. That's where the cluster forms in winter, and that's where she starts laying in spring. The brood nest expands upward over time as the colony grows and the bees draw new comb.

This is exactly what you want to see.

A healthy brood nest in a Langstroth hive typically fills 6 to 10 frames in the brood chamber. The pattern should be solid, with eggs, larvae, and capped brood all present on the same frame. Spotty or shotgun-pattern brood usually signals a failing queen or disease, but that's a separate issue.

The bees store honey above and around the brood nest. Pollen sits in frames adjacent to brood since nurse bees need it close for feeding larvae. This natural arrangement is why the honey super goes on top.

The colony already thinks in layers.

Why Brood Stays Low — And When That's a Problem

The queen has a biological preference for the warmest, most protected part of the hive. In a standard Langstroth, that's the bottom box. She'll keep laying there until she literally runs out of space.

That's when problems start.

Here's what happens when brood stays low too long:

• Congestion. The brood nest fills every available frame. Nurse bees have nowhere to store nectar coming in from the field.
• Honey bound. Nectar gets stored in the brood nest itself, leaving the queen with no empty cells to lay in.
• Swarm preparation. Once the queen has no laying space, the workers start building queen cells. The colony is now in swarm mode.

Getting brood above the hive breaks this cycle. You're essentially doing what the bees would do naturally if they had more room, but you're controlling where it happens. The queen stays productive below, the workers have space above, and you get clean honey in the supers.

Visual Cues: What to Look For During Inspection

This is where things get visual. You need to see the hive's current state before you can make good decisions. No amount of reading replaces cracking the lid and looking at what's actually happening on the frames.

Reading Frame Position and Brood Pattern

When you pull a frame from the brood chamber, you're looking for a few specific things. First, check the brood pattern. Solid patterns with minimal skipped cells mean a healthy queen.

Second, note what's on each frame. You want to see frames that are mostly brood, frames that are mostly honey, and frames that are a mix.

Here's a quick reference for what you're seeing:

The key visual cue is frame position relative to the brood nest. Frames at the edges of the brood chamber often contain honey or pollen. Frames in the center are almost always brood.

When you rearrange, you're consolidating the brood nest and moving the resources where they belong.

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Identifying Congestion Before It Triggers Swarming

Swarm cells are the most important visual cue in beekeeping. They hang from the bottom or sides of frames and look like peanut-shaped bumps. Finding them means the colony has already decided to swarm.

You're behind at that point, but you can still act.

Before swarm cells appear, there are subtler signs. Bees covering every frame surface with no space between them. Nectar coming in faster than the bees can store it.

Frames in the brood chamber that are full of nectar instead of brood. These are your signals to open up the hive and create space.

The best time to get brood above the hive is before any of these signs appear. In practice, that means inspecting every 7 to 10 days during spring buildup. You're watching for the moment when the brood nest fills about 80% of the available frames.

That's your window.

Spotting a Queen Excluder That's Doing Its Job (Or Isn't)

A properly installed queen excluder sits flat between the brood chamber and the super. The gaps are wide enough for worker bees to pass through but too narrow for the queen and drones. You should see workers moving freely through it during the day.

If the excluder is bent or warped, bees can squeeze through gaps at the edges. If it's clogged with propolis, workers may not pass through at all, which defeats the purpose. Check the excluder every inspection.

Clean off excess propolis with your hive tool and make sure it sits flush on the box below.

Step-by-Step: How to Move Brood Above the Hive

Before You Open the Hive

Timing matters more than most new beekeepers realize. You want to do this on a warm day when temperatures are above 60°F (15°C) and the wind is calm. The brood needs to stay warm, and you don't want frames exposed longer than necessary.

Gather your tools before you suit up:

• Hive tool for prying frames and scraping propolis
• Smoker with cool white smoke
• Queen excluder if you don't already have one installed
• Frame grips or careful hands for lifting
• A bee brush if you need to move bees off frames

Have a plan for where each frame will go before you start pulling them. Hesitation leads to mistakes. Know which frames stay, which move up, and which get rotated out.

The Frame Rearrangement Process

Here's the actual sequence for getting brood above the hive in a standard Langstroth setup:

1. Smoke the entrance and wait 30 seconds. Open the hive gently.
2. Locate the queen if possible. You don't need to see her on every frame, but knowing which box she's in helps.
3. Identify brood frames in the lower chamber. Mark their positions mentally or with frame markers.
4. Place the queen excluder on top of the brood chamber if it's not already there. Make sure it's centered and flat.
5. Move 2 to 3 frames of brood from the lower chamber to the box directly above the excluder. Place them in the center of the upper box.
6. Replace those frames in the lower chamber with empty drawn comb or foundation. This gives the queen fresh laying space.
7. Fill the outer positions of the upper box with empty frames or drawn comb. Bees need to work through the brood frames to reach the supers above.
8. Close up carefully. Make sure nothing is pinched or crushed.

The key principle is simple. You're giving the queen empty comb below while moving existing brood above. The nurse bees will follow the brood up through the excluder to care for it.

The queen stays productive in the brood chamber.

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Using a Queen Excluder Effectively

The queen excluder is the tool that makes this whole technique work. It's a grid with gaps of approximately 4.2mm (0.165 inches). Workers pass through easily.

The queen, with her larger abdomen, cannot. Drones get stuck, which is a minor annoyance but not a problem.

There are three main types:

Metal excluders from established manufacturers tend to have the most consistent gap sizing. Cheap plastic excluders sometimes have gaps that are wide enough for a small queen to squeeze through. If you go plastic, check the gaps with a ruler before using it.

Install the excluder with the flat side down in most designs. The bees will propolize the edges over time, which is normal. If they bridge the gaps with burr comb, scrape it off during your next inspection.

Timing It Right with the Season and Nectar Flow

The best time to get brood above the hive is during spring buildup, typically March through May in temperate climates. You want a colony that's strong enough to cover the frames you're moving but not so congested that it's already thinking about swarming.

Don't do this too early. A colony that's only covering 6 frames of brood doesn't have enough nurse bees to care for brood moved above the excluder. Wait until you see 8 or more frames covered with bees and at least 5 to 6 frames of brood.

Don't do it too late either. Once swarm cells are present, simply moving brood won't stop the process. You'll need to make a split or perform a Demaree swarm control instead.

The ideal window is when the colony is booming but the major nectar flow hasn't started yet. The incoming nectar gives the bees motivation to move up through the excluder and start working the supers. If you time it right, they'll draw comb and store honey in the upper boxes within a week or two.

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Common Mistakes That Chill Brood or Confuse the Colony

The biggest mistake is leaving frames exposed too long. Every frame you pull out of the hive loses heat. Brood can chill and die if it's exposed for more than a minute or two in cool weather.

Work quickly and deliberately.

Another common error is moving too many frames of brood at once. Taking 4 or 5 frames from a colony that only has 6 total leaves the queen with almost no brood to tend. The colony's population can crash.

Stick to 2 or 3 frames unless the colony is truly massive.

Putting brood frames on the outer edges of the upper box is another problem. Brood on the edges can chill because the cluster can't cover it. Always place moved brood frames in the center of the box, surrounded by nurse bees and other frames.

Forgetting to check for the queen before moving frames is risky. If you accidentally move the queen above the excluder, she'll start laying in your honey supers. Always visually confirm the queen is in the lower chamber before you place the excluder.

Finally, don't neglect the lower chamber after moving brood up. The queen needs empty comb to lay in. If you move brood frames up and replace them with foundation, the bees may not draw it out fast enough.

Use drawn comb if you have it. The queen will start laying within 24 hours if the comb is ready.

Alternatives to Using a Queen Excluder

Not every beekeeper uses an excluder, and some actively avoid them. The debate is real and ongoing in the beekeeping community. Understanding the alternatives helps you decide what works for your management style.

Excluder-Free Methods

Some beekeepers rely on the natural tendency of bees to keep brood low and honey high. This works well in strong colonies with plenty of drawn comb. The risk is that the queen will eventually move into the supers and start laying there.

You'll find brood in your honey frames at harvest, which makes extraction messy and unappealing.

The "brood and a half" approach is one compromise. You give the colony a deep brood box plus a shallow super above it, with no excluder. The queen has room to expand upward but tends to stay in the lower box.

You get more brood nest space without the excluder debate.

Double Brood Chamber Setup

Running two deep brood boxes is common in northern climates where colonies need more stores for winter. In this setup, you don't move brood above the hive at all. You give the queen two full deeps to work in.

The supers go on top of the second brood box, usually with an excluder.

This approach suits beekeepers who prioritize colony health over maximum honey production. The larger brood nest means a bigger population going into winter. The tradeoff is less honey in the supers because the colony is focused on filling the brood nest.

Top-Bar and Warre Hive Approaches

Top-bar hives and Warre hives handle brood placement differently. In a top-bar hive, the brood nest forms at one end of the bar and honey stores build toward the other end. There's no excluder.

You manage space by adding new bars at the honey end and occasionally moving bars to maintain the nest structure.

Warre hives use a "nadiring" approach, adding new boxes below the existing ones rather than above. The queen naturally moves downward into the fresh boxes. This mimics natural cavity behavior and eliminates the need for excluders entirely.

When to Do It: Seasonal Timing and Colony Readiness

Spring is the primary window for this technique. In most temperate regions, that means March through May. You're looking for specific colony conditions rather than a calendar date.

The colony should have at least 8 frames covered with bees. You want 5 to 6 frames of solid brood. The population should be growing, not declining.

If you're seeing bees bringing in pollen on their legs during inspection, that's a good sign the colony is building.

Avoid doing this during a dearth. When nectar stops flowing, bees can become defensive and the colony may not have the resources to adjust to the rearrangement. Wait until you see consistent nectar incoming before making the move.

Fall is not the time. In late summer and fall, you're preparing the colony for winter, not expanding the brood nest. Moving brood above the hive in fall can disrupt the winter cluster formation and leave the colony vulnerable.

Costs, Tools, and What You'll Need

The main cost is the queen excluder itself. Metal excluders run between $8 and $20 depending on the manufacturer and whether they fit 8-frame or 10-frame hives. Plastic excluders are slightly cheaper, typically $5 to $12.

You don't need specialized tools beyond what you already own for regular inspections. A hive tool, smoker, and protective gear are the basics. Frame grips make handling easier but aren't required.

If you need drawn comb to replace the frames you're moving, that's where the real cost lies. Drawing comb takes time and resources from the colony. Many beekeepers save drawn comb from previous seasons specifically for this purpose.

Never give a colony foundation in the brood chamber during spring buildup unless you have no other option. Drawn comb gets the queen laying immediately.

Expert Tips From Experienced Beekeepers

Mark the frames you move with a small dot of paint or a pin flag. This helps you track them during the next inspection. You want to know if the bees are caring for the brood above or if they've abandoned it.

Check the moved brood 5 to 7 days after rearrangement. You should see nurse bees covering the frames and the brood looking healthy. If the brood looks neglected or the bees aren't moving up, the colony may be too weak for this technique.

Consider combining it with a stronger colony.

Keep records. Note the date, colony strength, number of brood frames moved, and weather conditions. Over a few seasons, you'll develop a sense of what works for your specific apiary and climate.

Beekeeping is local, and what works in Georgia may not work in Vermont.

Don't be afraid to reverse course. If the colony isn't responding well, remove the excluder and let the queen go where she wants. There's no harm in backing off and trying again next season with a stronger colony.

Frequently Asked Questions

Can I move brood above the hive without a queen excluder?

You can, but the queen may follow and start laying in the supers. Some beekeepers use a brood-and-a-half setup without an excluder and accept occasional brood in the honey. It works best with strong colonies and experienced management.

How many brood frames should I move up?

Move 2 to 3 frames for a standard colony. Strong colonies with 8 or more frames of bees can handle 4 frames moved. Never move more than half the brood nest at once.

What if the bees won't go through the excluder?

This usually happens with cheap excluders that have inconsistent gaps. Check the spacing with a ruler. If gaps exceed 4.4mm, replace the excluder.

Propolis buildup on the excluder can also block workers. Scrape it clean during inspection.

Will this stop my bees from swarming?

It helps prevent swarm preparation by reducing congestion. If queen cells are already present, moving brood alone won't stop the swarm. You'll need to make a split or perform a Demaree swarm control at that point.

Should I do this in my first year?

Wait until your second season if possible. First-year colonies are still building comb and establishing. They don't have the population to manage brood above the hive effectively.

Focus on getting them through winter with a strong queen and adequate stores.

Final Checklist: Is Your Colony Ready for This Move?

Before you rearrange anything, run through this quick checklist. It takes 30 seconds and saves you from a costly mistake.

Colony strength: At least 8 frames covered with bees. You want a booming population, not a struggling one.

Brood quantity: 5 to 6 frames of solid brood minimum. The colony needs enough nurse bees to cover brood moved above the excluder.

Queen status: Confirmed present and laying well. Spotty brood means requeen first, rearrange later.

Season: Spring buildup or early summer. Not fall, not during a dearth.

Weather: Above 60°F, calm winds, no rain forecast. Brood chills fast on cool, windy days.

Equipment: Queen excluder ready, empty drawn comb available, hive tool and smoker in hand.

If everything checks out, proceed with confidence. If anything is off, wait a week and reassess. The hive will tell you when it's ready.

You just have to listen.

Image source: Bing (Web (fair-use with source credit))

Image source: Bing (Web (fair-use with source credit))