Leaf Browning and Curling

Underwatering

To address leaf browning and curling caused by underwatering in Anthurium clarinervium, ensure the plant is watered regularly, allowing the top inch of soil to dry out between waterings. Use lukewarm water to avoid shocking the plant's roots. If the soil has become hydrophobic (water-repellent), soak the pot in a tray of water for an hour to rehydrate the soil thoroughly. Adjust your watering schedule according to seasonal changes, as indoor heating during winter can increase soil dryness.

Bacterial Blight

Caused by the bacterium Xanthomonas axonopodis pv. dieffenbachiae, which thrives in warm, humid conditions and can be spread through water, contaminated tools, or infected plant material.

To manage bacterial blight, start by isolating the affected plant to prevent the spread. Remove and destroy all infected leaves using sterilized pruning tools. Avoid overhead watering to keep the foliage dry and reduce humidity around the plant by improving air circulation. Consider applying bactericides or copper-based fungicides, following the product's instructions carefully. Always sterilize your tools after use and regularly inspect your plants for early signs of infection.