Organic apples are difficult to grow in the Midwest because spring and summer rains promote diseases that are difficult to control using organic methods. Fungal and bacterial diseases damage leaves, defoliate trees, and blemish fruit. One way to control diseases is to grow the apples in plastic-covered “high tunnels” – unheated greenhouses.
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Chris McGuire and his wife, Juli McGuire, grow apples at Two Onions Farm near Belmont, Wisconsin. The McGuires have shared a report on their project. Visit www.twoonionfarm.com/research for more information.
