Leaf Spot Disease
Circular or irregular spots on leaves caused by fungi or bacteria.
Symptoms
- ✓Round or irregular brown, black, or yellow spots
- ✓Spots often have a yellow halo
- ✓Spots may spread and merge over time
- ✓Older leaves affected first
Causes
- Fungal or bacterial infection
- Water sitting on leaves overnight
- Poor air circulation
- Warm, humid, stagnant conditions
Treatment
- 01Remove all affected leaves and dispose in the bin (not compost).
- 02Clean your scissors between cuts with rubbing alcohol.
- 03Move the plant to a spot with better airflow.
- 04Water at the soil level rather than from above.
- 05Treat weekly with a neem oil or copper fungicide spray until new growth is clean.
Prevention
- Space plants for airflow.
- Water in the morning so leaves dry before nightfall.
- Wipe leaves occasionally with a damp cloth.
- Quarantine new plants for two weeks before adding them to your collection.
FAQ
Will leaf spot spread to my other plants?+
It can. Isolate the affected plant and clean your tools between plants to prevent spread.
Does neem oil actually work?+
Yes, when applied consistently every 7 days for several weeks. Spray in the evening to avoid leaf burn.
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