Leaf Curling and Drooping

Underwatering

To address leaf curling and drooping caused by underwatering in Aglaonema 'Red Valentine', 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 dried out completely, soak the pot in a tray of water for 30 minutes to rehydrate evenly. Adjust your watering schedule according to seasonal changes, as indoor heating during winter can increase soil dryness.

Spider Mite Infestation

Spider mites are tiny pests that thrive in warm, dry conditions. They feed on the sap of the Aglaonema Red Valentine, causing yellowing and stippling of leaves.

To combat spider mites, increase humidity around your plant as they prefer dry conditions. Regularly misting the Aglaonema can help. Wash the plant with a strong stream of water to physically remove the mites. For severe infestations, use insecticidal soap or neem oil, applying it directly to the affected areas. Ensure to treat the undersides of the leaves where mites commonly reside. Repeat the treatment every 7-10 days until the infestation is under control.

Leaf Spot Disease

Fungal or bacterial pathogens

To manage leaf spot disease, it's crucial to maintain a clean environment around your Aglaonema 'Red Valentine'. Remove and dispose of any infected leaves to prevent the spread. Ensure good air circulation and avoid wetting the foliage when watering. In severe cases, applying a fungicide or bactericide, as appropriate, can help control the disease. Always follow the product's instructions for the best results. Keeping the plant in optimal growing conditions can also enhance its resistance to diseases.