Editing Pollination management (section)

==Planning for improved pollination==
[[Image:Bee migration 9045.JPG|right|thumb|US migratory commercial beekeeper moving spring bees from South Carolina to Maine for blueberry pollination]]
Before pollination needs were understood, orchardists often planted entire blocks of apples of a single variety. Because apples are self-sterile, and different members of a single variety are genetic [[cloning|clone]]s (equivalent to a single plant), this is not a good idea. Growers now supply pollenizers, by planting [[crab apple]]s interspersed in the rows, or by grafting crab apple limbs on some trees. Pollenizers can also be supplied by putting drum bouquets of crab apples or a compatible apple variety in the orchard blocks.

The field of pollination management cannot be placed wholly within any other field, because it bridges several fields. It draws from [[horticulture]], [[beekeeping|apiculture]], [[zoology]] (especially [[entomology]]), [[ecology]], and [[botany]].