What to Do When the Money Tree's Leaves Turn Black
As a common ornamental plant in homes, the issue of blackening leaves on money trees troubles many plant enthusiasts. This article will systematically analyze the causes of leaf blackening from environmental regulation to daily maintenance, providing corresponding solutions to help you quickly restore the vitality of green plants.
1.1 Symptoms of Low Temperature Frostbite
When the ambient temperature consistently drops below 10°C, the leaf edges first develop watery black spots, which gradually spread to the veins. Observation shows that frozen plants often exhibit symptoms such as drooping leaves and cessation of new bud growth.
1.2 Four-Step Emergency Response Method
① Trim blackened leaves ② Move to an environment of 18-25°C ③ Place near the southeast-facing window to acclimate ④ Rotate the pot 45 degrees weekly. Avoid placing directly on floor heating or air conditioner outlets, as excessive temperature differences can worsen damage.
II. Light Management: The Art of Balance
2.1 Dual Risks of Insufficient Light and Overexposure
Experimental data shows that more than 3 hours of scattered light per day can maintain the green color of leaves. Long-term shading can lead to the breakdown of chlorophyll, while direct sunlight exceeding 20000lux at noon in summer can cause sunburn.
2.2 Intelligent Lighting Solution
It is recommended to use a lux meter to monitor: maintain 5000-8000lux in spring and autumn, use gauze to filter strong light in summer, and pair with plant grow lights for 2 hours of additional lighting daily in winter.
III. Disease and Pest Control: Systematic Warfare
3.1 Common Pathogenic Factors
Sooty mold, red spiders, etc., are the main sources of disease. Initially, there are brown spots on the back of the leaves, and in severe cases, the entire leaf blackens and rots, which can be confirmed by observing the pests under a magnifying glass.
3.2 Three-Step Biocontrol Process
① Isolate diseased plants ② Spray neem oil solution (1:200) ③ Hang yellow sticky traps. Wiping the leaf surface with 75% alcohol wipes monthly can effectively prevent diseases and pests.
IV. Scientific Watering: Root Protection
4.1 Golden Rule of Watering
Use the "look, tap, measure" method: observe the dryness of the top 3cm of soil, tap the pot to judge the moisture by sound, and use a soil moisture meter for more accurate results. Water every 5-7 days in spring and autumn, every 3 days in summer, and every 15 days in winter.
4.2 Emergency Treatment for Rotting Roots
If waterlogging is detected, immediately remove the pot, trim the rotting roots, soak in carbendazim for 30 minutes, and then repot using ceramsite and peat soil (3:7). Maintain an environmental humidity of over 60% during the repair period.
Through systematic maintenance of the four dimensions of temperature, light, diseases and pests, and watering, combined with regular observation and preventive measures, the money tree can be kept lush and green. It is recommended to conduct a full plant check monthly, establish a maintenance log, and address any signs of problems promptly. Remember, prevention is always better than cure!