Oliphir V. N. Breeding and keeping wild bees: artificial nests, crop pollinatio

Oliphir V. N. Breeding and keeping wild bees: artificial nests, crop pollination, diseases. In Russian /Olifir V. N. Razvedenie i soderzhanie dikikh pchel: isskustvennye gnezdilishcha, opylenie kultur, bolezni. In the meantime, the importance of wild single bees in nature is huge. Many entomophilic plants depend on wild pollinators, as domestic bees are not found everywhere or in insufficient numbers, and crops such as alfalfa and clover are most effectively pollinated by single bees and bumblebees. Moreover, about 50 percent of the pollination of many crops (cucumbers, watermelons, pumpkins, sunflowers) is done by wild bees. Please contact us for details on condition of available copies of the book. SKUalb4287ab7696b1fcaa.