Extension > Fruit > Apple > Spots/blotches are raised and rough
Apples > Fruit > Spots/blotches are raised and rough
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Apple Scab
Venturia inaequalis
- Brown raised corky spots on fruit
- Severely infected fruit may be deformed and cracked
- Olive green to brown leaf spots with an irregular or feathered edge, eventually becoming a dark brown to black
- Infected leaves turn yellow and drop prematurely
- More information on Apple Scab
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Oystershell Scale
Lepidosaphes ulmi
- Fruit develop waxy, grayish brown, resembling miniature oyster shells
- Branch dieback can occur in severe infestations
- More information on Oystershell Scale
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Cedar-Apple Rust
Gymnosporangium juniperi-virginiana
- Rough green to brown irregular spots on fruit, do not extend deep into the fruit
- Leaves develop yellow, then bright orange spots with a red border
- Small raised black dots may be present on the upper side of leaf spots, fringed tubes may be seen on the underside of the leaf spots
- Juniper bushes have brown 1/4 – 1 inch round woody galls, that produce bright orange tentacles in wet spring weather
- More information on Cedar-Apple Rust