The Henry Doubleday Research Association in England has a project underway on this
Varieties and Integrated Pest and Disease Management Programme for Organic Apple Production
<http://www.gardenorganic.org.uk/research/ir_hortprod_org_apple.php>
also it is doing some work on organic cane and bush fruit production, see link at
<http://www.gardenorganic.org.uk/research/ir_hortprod.php>
I imagine some of the information generated will be transferable to North America.
Doug Woodard
St. Catharines, Ontario, Canada
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