Entomofilnye agricultural plants in Russia occupy about 20 million in hectares. Them concern: sunflower , grechiha , a cotton , a coriander , a clover , semenniki vegetable cultures, plodovo-berry, bahchevye, etc. Transferring pollen I impregnating tsvetki, bees raise productivity of these cultures, improve quality of seeds and fruits. At pollination entomofilnyh cultures bees in a complex with the advanced agrotechnics crops raise on 20-30%.

Using bees on pollination , economy receive additional production. It is counted up, that use of bees for pollination of agricultural crops gives a crop increase as a whole on the country for the sum about 2,2 billion river Thus cost of the additional crop received from pollination by bees, several times exceeds cost of direct production of beekeeping - honey, wax, roev, etc.

With development of an intensification of an agricultural production pcheloopylenie becomes an integral part of an agrotechnical complex. Value melliferous bees for productivity increase entomofilnyh agricultural crops constantly increases in connection with increase in the sizes of the areas under crops of these cultures and sharp reduction of number of wild insects-opylitelej.

Bumblebees concern number of wild insects-opylitelej, some kinds of single bees, various flies, butterflies, bugs, etc. These insects on the body transfer a pollen considerable quantity, carrying out cross-pollination. However they collect nectar and pollen only for single immediate use and can be fed with many other things substances. The number of wild insects constantly varies, therefore they play a supporting role in pollination of plants.

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