Orcharding: Heirloom and organic approaches

How do you grow apples with a minimum of chemicals? Is organic possible in the Midwest? Where can you get heirloom varieties not seen in stores?  I will share from what I've learned so far about biodynamics, tree care, fruit varieties, and living with bugs without spraying poison.   A mixture of how-to,  high and low tech, history, botany, economics  and tasty snacks.