What to Do When the Leaves of Epipremnum aureum Rot
Epipremnum aureum, a common indoor ornamental plant, has a leaf rot issue that troubles many caretakers. This article systematically analyzes the causes of typical symptoms such as yellowing, blackening, and rotting of the leaves, and provides a complete solution to help you quickly rescue your beloved Epipremnum aureum plant.
Four Core Causes of Rotting Leaves in Epipremnum aureum
Excessive Watering Leading to Root Rot
While Epipremnum aureum enjoys a moist environment, its roots are highly sensitive to waterlogging. When the soil moisture content exceeds 30%, oxygen exchange is impeded, causing anaerobic respiration and leading to blackened and rotting roots. Symptoms include the base leaves turning yellow first, followed by the gradual spread of water-stained spots.
Handling Tips: Use the immersion method to water the plant, and water again when the soil surface turns white; switch to a misting spray bottle in winter to maintain 60%-70% air humidity; choose a breathable pot with陶粒 (陶粒) padding and perlite mixed substrate.
封闭 Environment Causing Fungal Growth
Poor ventilation can cause leaf surface moisture to remain for over 4 hours, creating breeding conditions for (T-J) bacteria and leaf spot fungi. Symptoms are characterized by round brown spots on the leaves with yellow halos around the edges.
Improvement Measures: Ensure 3-4 hours of window ventilation daily, use a circulating fan to promote air circulation; regularly wipe the leaf surface with diluted beer, which can both remove dust and form an antibacterial protective layer.
Low Temperature Freezing Causing Cell Necrosis
When the ambient temperature drops below 10°C, the cell membrane permeability of Epipremnum aureum changes, resulting in symptoms such as soft leaves and browned leaf edges. Continuous low temperatures can cause vascular bundle blockage, leading to water-soaked rot throughout the plant.
Insulation Plan: Use a double-layer insulation method in winter - wrap the inner layer with non-woven fabric and the outer layer with plastic film; place it 1 meter away from the heater at night to maintain a temperature above 15°C.
Insect Pest Invasion Causing Tissue Damage
Sucking insects such as spider mites and scale insects can cause dense white spots on the leaf surface, while honeydew secreted by aphids can trigger sooty mold. Bacterial soft rot can spread rapidly in the rainy season, causing an entire leaf to rot within 24 hours.
Prevention Points: Use neem oil solution monthly for prevention, use abamectin + benzoxazole compound medicine in the early stage of the disease; promptly remove and incinerate diseased leaves to block the source of infection.
By scientifically diagnosing the causes of leaf rot and combining precise care measures, the plant usually recovers within 2-3 weeks. It is recommended to apply seaweed extract every quarter to enhance stress resistance, combined with rotating the pot to ensure even light exposure, preventing leaf issues from the root.