Experienced beekeepers rarely need to pull every frame to know how a colony is doing — the brood pattern on a single frame, the traffic at the entrance and a handful of visible warning signs tell most of the story. This simulation puts a brood frame and a hive entrance in front of you and lets you dial in the same variables an inspector reads in the field.
A spotty brood pattern alone doesn't prove disease — it's also the normal signature of an old or poorly mated queen. That's why experienced inspectors always cross-check the pattern against other signs (mites, mummies, entrance traffic) before deciding what to do next.
An interactive 3D brood frame and hive entrance where you set queen laying quality, colony population, disease signs and season to practise reading the classic visual cues a beekeeper uses to judge colony health without pulling every frame.
The brood-cell grid shifts between a solid capped sheet and a scattered "pepperbox" pattern as you move the pattern-quality slider, overlays chalkbrood mummies, sacbrood cappings or Varroa mites when disease signs are selected, and the entrance and frame edges fill with more or fewer bees as population changes.
Drag the brood pattern and population sliders, then pick a disease sign and season to see the frame and entrance respond. Read the live "Field read" panel, which combines all four inputs the way an inspector would.
A spotty brood pattern alone doesn't prove disease — it's also the normal signature of an old or poorly mated queen, which is why experienced inspectors always cross-check the pattern against other signs before deciding what to do next.