Management
- Black lesions with feathery margins surrounded by yellow tissue are found on the leaves. Infected leaves drop prematurely.
- Purple/red bumpy areas on first year canes may be evident.
- Plants may be weakened due to defoliation and reduced flower production may be observed.
- Cultural-Roses should be planted where the sun can quickly dry the night's dew.
- Space roses far enough apart for good air circulation Avoid overhead watering and keep foliage as dry as possible.
- Remove infected canes and burn diseased leaves.
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| Black spot | Drying of leaves | Infected leaves |
