lower in the greenhouse. 13:00 Vertical placement will have a negative effect on the development of the hives. 10:00 1! Bumblebees need max. 2…
control and reduce the pest pressure,’ Michel states. ‘It had a positive effect in the spring and there was less need for trapping to reduce the…
activity of bumblebees. Specially when they block the early sunlight, the effect is worse. Energy saving screens are often used in greenhouses during…
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