Animals pollinate roughly 35 percent of all crops grown in the world. In North America, bees were responsible for roughly $20 billion in agricultural production in 2000. Blueberries are highly dependent on bees for pollination. Without sufficient pollen transfer between flowers, the fruit can be small and uneven with slow ripening, so most blueberry growers rent hives of European honey bees every year.
Read more about Farming for Bees: Guidelines for Providing Native Been Habitat on Farms by Mace Vaughan, Matthew Shepherd, Claire Kremen, and Scott Hoffman Black of The Xerces Society for Invertebrate Conservation.
Vaughan, Mace, Matthew Shepherd, Claire Kremen and Scott Hoffman Black. Guidelines for Providing Native Been Habitat on Farms. Retrieved 20 July 2010.