Bumblebees (Bombus terrestris) are active natural pollinators of various crops both in greenhouses and open ground.
Bumblebees are supplied in hives. One hive contains 60-80 bumblebees.
Transportation and storage
The hives are adapted to the long-term maintenance of pollinators and their transportation over considerable distances. During transportation it is IMPORTANT not to turn over the hives. It is recommended to store and transport the hives at temperature of 15-20 ° C.
Bumblebees are used for natural pollination of greenhouse and open ground crops (tomato, cucumber, pepper, aubergine, melon, etc.), orchards (plum, cherry, etc.) and berries (strawberries, currants, gooseberries, etc.).
Number of hives
The number of hives necessary for qualitative pollination depends on the crop and use conditions. Therefore, in any single case it is selected individually. In greenhouses from 4 to 6 hives are used per hectare every 4-6 weeks.
Body of bumblebee is black, with cross bands of different colors. There is one yellow band in the thoracic section, the second one is in the middle of the abdomen. The abdomen ends with a white stripe. The size of the queen is 20-27 mm, and the size of the workers is 10-15 mm.
In comparison with the bee, the bumblebee is more active pollinator, especially in cloudy weather and at low temperatures. Bumblebee orients better in greenhouses and greenhouse tunnels. For tomatoes and some other crops, the bumblebee is the only natural pollinator. Bumblebees, unlike bees, do not tend to fly away from the hive all over the swarm to a more attractive crop, that is, they work exactly where the beehives are located.
Bumblebees most actively work at temperature of 10-28 ᵒС. At higher temperature, the activity of bumblebees is reduced, and at 32 ° C they are engaged in lowering the temperature inside the hive.
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