The queen excluder is a screen made from metal, wood or plastic, to several designs. It sits above the brood area of a bee hive. Its purpose is to limit the queen’s activities to the designated brood area and to prevent her from spoiling honey stores with eggs and brood. The spacing between the bars in the queen excluder only allows worker bees to pass through.
The image shows plastic and metal examples.
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I am a beekeeper and an allotment grower and this site features articles on those subjects including recipes made from the produce from my allotment and from my bee hives. I have an interest in a great many things (too many actually) and some of those experiences, and the joy and learning I acquire from them, may also randomly appear here.