At low humidity (below 50-55%), the pollen is too dry and does not stick to the stigma. At high humidity, the pollen sticks to the stamen and does not…
15:00 Do not keep a hive closed for longer than one day unless additional pollen is fed to the bees. Bumblebee pollination of preferably at least 4…
lead to a high relative humidity (RH). If the RH rises above 80-85%, the pollen is not released from the flowers and cannot be collected by the…
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