Artificially lit crops pollination advice
adequate daylight. On average, bumblebees are allowed to fly between 10:00 a.m. and 2:00 p.m. (4 weeks before/after the shortest day), with an additional half-hour [...] bees to fly only when there is sufficient daylight (e.g., between 10:00 a.m. and 3:00 p.m.). If the energy screen remains closed for a full day, it's better [...] until week 10 (-4). Position the colonies to receive direct and early daylight Provide shade for colonies during intense sunlight between 11:00 a.m. and 3:00