Queen Isolation Cage 240 (Blue) — Beequip NZ

For brood breaks and healthy hive management.

Take total control of your queen's laying cycle. The Queen Isolation Cage 240 fits directly into a purpose-cut window in a brood frame, confining the queen inside the hive while your workers continue to feed and care for her through the cage grill. No queen, no eggs — which means no new capped brood to feed and protect Varroa mites for the length of the confinement. It's one of the simplest, lowest-cost tools going for combining a forced brood break with an Oxalic Acid vaporisation treatment.

Why beekeepers reach for it

• Forces a clean brood break. Confining the queen stops egg-laying completely, so the brood cycle empties out on a predictable timeline — no guesswork, no searching for eggs.
• Queen stays in the hive. She's kept warm, fed, and pheromone-active the whole time, so there's no risk of the colony trying to supersede her.
• Built for the job. Food-grade polypropylene construction in eye-catching blue, with a sliding door for quick, fuss-free release.
• 4.2mm grill spacing — the same opening size as a standard queen excluder — lets nurse bees pass in and out freely to tend to her.
• Versatile fit. Works vertically in a purpose-cut brood frame window, or horizontally between two frames.
• Multi-purpose tool. Useful well beyond Varroa control — swarm prevention, honey flow management, requeening with cells, and winter brood breaks.

How it works

Cut a window into a brood frame and fit the cage into it — the bees will propolise and secure it in place, and the frame can stay in the hive permanently. Keep the frame near the centre of the brood box while the queen is caged so she's kept warm and well fed; once released, it can sit as an outer frame instead.

For an even more effective setup, use a ¾ depth frame in a full-depth brood box — the bees will draw drone comb in the gap underneath, which draws in any Varroa mites present. Once capped, that drone comb can simply be scraped off and disposed of, mites and all.

To release the queen, just slide the door open — she'll walk out once the hive is closed back up.

Popular applications

1. Varroa control. From mid-spring through mid-summer, up to 75% of the Varroa mites in a hive can be sheltering inside capped brood, out of reach of most treatments. Cage the queen for 18 days, release her, and wait a further 6 days — you'll then have a 2-day window with zero capped brood, giving an Oxalic Acid vaporisation treatment the best possible chance of hitting nearly every mite in the hive.

2. Swarm control. Caging the queen for 18 days ahead of the swarm season interrupts the brood cycle that drives colonies toward swarming, buying valuable time and helping keep field bee numbers high for the coming honey flow.

3. Maximising a honey crop. Cage the queen 2–3 days before a short, intense honey flow begins. With no brood to feed, more bees shift to foraging duties and there's no risk of brood ending up in the honey supers.

4. Requeening with cells. Cage the outgoing queen while introducing a new queen cell, then check back in 24 days to confirm the new queen is laying before removing the old one.

5. Overwintering. A winter brood break lets the cluster temperature drop and the colony conserve honey and pollen stores, extending the lifespan of both workers and queen. The queen can be safely caged for 3–4 months with no lasting effect on her health or performance.

Specifications

A note on Varroa control

Brood-break confinement is most effective when paired with an Oxalic Acid vaporisation treatment once the hive is free of capped brood — check out BuzzBee's InstantVap vaporiser range for a fast, efficient way to treat straight after release.