What to Do When the Leaves of the Epipremnum aureum Turn Yellow
Epipremnum aureum, a common indoor ornamental plant, often困扰s many caretakers with the problem of yellowing leaves. This article will systematically analyze the causes of yellowing leaves and provide treatment solutions from pathological diagnosis to maintenance adjustments, helping you restore the Epipremnum aureum to its lustrous green.
Urgent Treatment Plan for Yellowing Leaves of Epipremnum aureum
Key Points of Diseased Leaf Pruning Techniques
Yellow leaves should be pruned immediately: Use a sterilized pair of scissors to cut at a 45-degree angle from the base of the petiole, leaving healthy tissue. For partial yellowing, only the affected area should be removed, while for complete yellowing, the entire leaf should be plucked. After treatment, apply a fungicide powder to the cut to prevent infection.
Root Repair Operating Guide
After removing from the pot, the root condition can be seen: Healthy roots are milky white, and rotting roots are brown and slimy. Keep the main roots and cut off all decayed lateral roots, then soak in a 0.1% potassium permanganate solution for 20 minutes. Use a new matrix of珍珠岩:rotten leaf soil = 1:3, and water thoroughly after planting.
Optimized Maintenance System for Epipremnum aureum
Precise Control of Light Intensity
Set up a scattered light environment 1.5 meters away from the east-facing windowsill, maintaining a light intensity of 5000-8000 LUX. Use a sunshade net to filter 30% of the strong light in summer, and in winter, it can receive 2 hours of direct sunlight. Regularly rotate the pot to ensure even exposure to light.
Scientific Irrigation Management Plan
Adopt the "dry-wet" principle: Insert a bamboo stick 2/3 into the soil, and if no soil sticks to it when pulled out, water thoroughly. Water every 3-4 days in summer and every 7-10 days in winter. Combine with atomized humidification to maintain 60%-70% air humidity.
Nutritional Supply Cycle Planning
In the growing season (April-September), apply a nitrogen-phosphorus-potassium 20-20-20 water-soluble fertilizer every 15 days, with the concentration controlled at 800 times liquid. In winter, switch to slow-release fertilizer pellets, applying 5-8 pellets per pot. When new leaves turn yellow, supplement with chelated iron fertilizer, using half the amount as indicated.
Through systematic treatment and maintenance adjustments, combined with regular observation, new leaves can be seen sprouting in about 2-3 weeks. It is recommended to wipe the leaves with a diluted beer solution (1:50) monthly, which not only cleans but also supplements amino acids, keeping the Epipremnum aureum in the best ornamental condition.