Ventilation is critical when using MAQS. A fully open bottom entrance, 13 mm (0.5”) in height and full width of the hive, are the minimum ventilation requirements. Having additional entrances does not seem to affect the efficacy of the treatment. Close off screen bottom boards for maximum efficacy. Do not consider open screen bottom boards as ‘ventilation’, as bees draw air to ventilate the colony through the front hive entrance.
