Root Rot

Overwatering

To address root rot in arrowhead vine, 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 waterlogged conditions.

Leaf Browning and Crisping

Underwatering

To address leaf browning and crisping due to underwatering, ensure the arrowhead vine's soil is consistently moist but not waterlogged. Implement a regular watering schedule, checking the soil moisture by touching the top inch of soil; if it feels dry, it's time to water. Consider using a self-watering pot to maintain consistent moisture levels. Additionally, during hotter months or in dryer indoor environments, increase watering frequency to prevent the soil from drying out too quickly.

Spider Mite Infestation

Spider mites are tiny spider-like pests that feed on the sap of the arrowhead vine, leading to yellowing leaves, webbing on the plant, and overall health decline.

To combat spider mite infestations, start by isolating the affected plant to prevent spread to other houseplants. Increase humidity around the plant, as spider mites thrive in dry conditions. Wash the plant gently with water to remove mites and their webs. For severe infestations, use insecticidal soap or neem oil, applying it according to the product instructions. Regularly check the plant and repeat treatments as necessary to ensure all mites and eggs are eradicated.

Bacterial Leaf Spot

Caused by various bacteria, this disease manifests as dark, water-soaked spots on leaves, often with a yellow halo. It thrives in warm, humid conditions.

To manage bacterial leaf spot, start by isolating the affected plant to prevent the spread. Remove and dispose of any infected leaves carefully. Ensure the plant is in a well-ventilated area to reduce humidity around the foliage. Avoid overhead watering to keep the leaves dry. If the infection is severe, applying a copper-based fungicide may help, but always follow the product's instructions. Improving air circulation and reducing leaf wetness are key preventive measures.