Heirloom Rose Bush with Black Spot: Sanitation and Fungicide Program

20+ year old 'Seven Sisters' rose (4'x3') shows black spots, yellowing leaves, bare canes. Blooms 2-3 times yearly but unpruned and unfertilized for over a year. Owner wants to save this sentimental plant.

Black Spot Management

1. Sanitation: Rake and discard all fallen leaves (trash, not compost) to remove spores.
2. Water Management: Eliminate overhead watering. Use trickle irrigation at base only—wet leaves spread the fungus.
3. Fungicide Schedule: Spray every 7-14 days (shorten interval before rain). Effective active ingredients listed in Mississippi State resources provided.

Rejuvenation Plan

After disease control, implement winter pruning to remove old wood, improve airflow, and stimulate vigorous growth. Begin regular fertilization in spring. This heirloom can recover with consistent care.