Honey Bee (Apis mellifera) swarm in a tree, urban Albuquerque, NM, as the queen bee presumably relocates the hive. Bees, being the primary pollinators, play an imortant role in pollinating flowering and crop plants including grapes, most berries, many fruits, vegetables, cotton, alfalfa and nut bearing trees. Insect pollination is known as entomophily. In 2009, some US reports suggested that 1/3 of the honey bee colonies did not survive the winter. There has been a dramatic decline in bee colonies since 1972 due to urbanization, pesticide use, Varroa mites and colony collapse disorder raising concerns worldwide. The UK enacted the Bees Act 1980 designed to stop the decline of bees.