Olive-green to black velvety spots on leaves and fruit; bad cases drop leaves and crack the fruit skin.
Wet spring weather during and after bloom.
Apr May Jun
Apply a sulfur or copper fungicide on a spring schedule from bud break through early summer.
Rake and destroy fallen leaves, prune for airflow, and plant scab-resistant varieties like Liberty.
The same products HomesteadSync recommends in the app for this problem.
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HomesteadSync watches your season and flags the pests and diseases likely to hit next - so you are ready, not surprised.