This is likely due to a combination of nutrient deficiency and fungal infection. Yellowing leaves usually indicate a lack of nutrients, especially during the plant’s growth phase. Without timely fertilization, the plant cannot produce enough chlorophyll, causing the leaves to fade and turn yellow.
Black spots often appear after continuous rain or in high humidity, where the leaves remain wet for long periods. This creates a favorable environment for fungal diseases. Older leaves or areas with poor air circulation are especially prone to infection.
Recommended treatment:
- Spray Mr Ganick Organic Plant Acid RTU: Apply every 3–4 days, preferably in the morning or late afternoon. Make sure to spray both sides of the leaves evenly.
- Apply organic fertilizer: Use Baba Compost-based Fertilizer or Mr Ganick 549 Organic Flower Bloom Fertilizer, both rich in essential nutrients. These help stimulate healthy new leaf growth and improve the plant’s overall resistance to disease.
