| Once the spots appear it is too late to spray. The infection period is from when growth first starts until shoots are a couple of inches long. Macintosh type varieties generally are resistant to the disease; Golden Delicious types very susceptible. Lee Reich, PhD Books by Lee Reich: Uncommon Fruits for Every Garden A Northeast Gardener's Year The Pruning Book Weedless Gardening On May 16, 2006, at 9:12 PM, Randall Burd wrote:
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