warning
Black Spots in Rose Rambler (American Pillar)
symptoms
Symptoms
- fiber_manual_recordBlack or dark brown spots
- fiber_manual_recordSpots with yellow halos
help
Causes
- fiber_manual_recordFungal disease (black spot)
- fiber_manual_recordBacterial infection
- fiber_manual_recordSunburn
troubleshoot
How to Diagnose
Fungal spots: often circular with yellow margins. Sunburn: irregular bleached patches turning black.
healing
Treatment
Remove affected leaves. Apply fungicide. Adjust sun exposure.
shield
Prevention
Avoid wetting foliage. Provide adequate spacing. Remove debris.