When should I treat for cedar apple rust?
Fungicide on the apple side at bud break, or remove the cedars within a few hundred feet.
Why timing decides it
Disfiguring rather than deadly. It matters most to orchards and to anyone who wants a clean crabapple.
Indiana specifics
Common wherever red cedar has colonised a fence line near apples — which in rural Hendricks and Boone counties is nearly everywhere.
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