Root Rot

Overwatering

To address root rot in Anthurium splendidum, first, cease watering immediately and allow the soil to dry out. If the plant is severely affected, remove it from its pot, trim away any black, mushy roots, then repot in fresh, well-draining soil. Ensure the pot has adequate drainage holes. Going forward, water only when the top inch of soil feels dry to the touch, and avoid letting the plant sit in standing water.

Leaf Browning and Curling

Underwatering

To address leaf browning and curling caused by underwatering in Anthurium splendidum, ensure a consistent watering schedule that keeps the soil slightly moist but not waterlogged. Use lukewarm water to avoid shocking the plant's roots. If the soil has dried out completely, soak the pot in a water bath for about 45 minutes to rehydrate the soil evenly. Adjust your watering frequency according to seasonal changes, watering more during the growing season and reducing frequency in winter.

Bacterial Blight

Xanthomonas axonopodis pv. dieffenbachiae

To manage bacterial blight, it's crucial to maintain a clean environment. Remove and destroy infected plant parts immediately. Avoid overhead watering to keep the foliage dry and reduce the spread of bacteria. Implementing a strict sanitation regime, including sterilizing tools and pots, can prevent the introduction and spread of the pathogen. For severe infections, chemical treatments may be necessary, but always opt for eco-friendly and species-appropriate options. Quarantine new plants to prevent the introduction of the disease.