Manual Growing lights
and optimal placement,
pollination is optimized during the winter months.
Keep in mind that growing lights produce a lot of heat, and can therefore influence [...] bumblebees on the specific day, but to open the hive the following day. Never keep a
hive closed for longer than one day unless additional pollen is fed to [...] orientation of bumblebees while it falls and when it
covers the greenhouse. Keep a close eye on pollination during snowfall and introduce extra bumblebee