Why Are the Epipremnum Aureum Leaves Turning Yellow - Where to Cut
As a preferred variety of indoor green plant, Epipremnum aureum is loved for its vigorous vitality and air purification properties. When yellowing of the leaves is detected, scientific pruning and precise care are equally important. This not only affects the plant's aesthetics but is also crucial for maintaining its health.
Judging and Handling Yellow Leaves
1. Techniques for Minor Yellow Leaf Pruning
When new leaves unfold, the lower older leaves naturally metabolize and turn yellow, which is a normal physiological phenomenon. It is recommended to use scissors sanitized with alcohol to cut the yellowed area along the leaf veins at a 45-degree angle, retaining the healthy green part. Important tip: After pruning, avoid contact with water at the cut, and apply wood ash to accelerate healing.
2. Handling Pathological Yellow Spots
If yellow spots are accompanied by black mold spots or a spreading trend, the entire diseased leaf needs to be cut off. During the operation, cut at the base of the petiole 3 cm away, and simultaneously spray a solution of carbendazim 800 times to prevent the spread of pathogens. It is recommended to isolate the diseased plant for 2 weeks and observe the condition of the new leaves.
Root Health Maintenance Guide
3. Emergency Handling of Root Rot and Yellow Leaves
When brown, soft-rotted roots are visible when pulling out the plant, retain the upper 1/3 healthy part of the main root. After pruning, soak in a potassium permanganate solution for 20 minutes, and then plant in a new medium of coconut bran + perlite (3:1). Key technique: After the first thorough watering, maintain a water control period of 15 days to promote the germination of new roots.
4.补救方案 for Cutting Propagation
Select strong branches with aerial roots, retaining 3 internodes per section. When growing roots in water, change the water every 3 days and add 2 drops of nutrient solution. When the white roots reach 5 cm, transfer to soil cultivation. Experience sharing: The survival rate of cuttings can reach 90% in spring and summer, and a heating mat should be used in winter.
Systematic Maintenance Strategy
In addition to pruning operations, daily maintenance should include: ① Watering with the "dry-wet" method, maintaining soil moisture between 40%-60%; ② Applying a special fertilizer for ornamental leaf plants (N-P-K=3-1-2) every half month; ③ Ensuring 4 hours of scattered light per day, avoiding direct western sunlight. Through the organic combination of pruning and maintenance, Epipremnum aureum can regain its lush green vitality.