What to Do When the Branches of a Lucky Tree Dry Up
The lucky tree, as a common indoor green plant, often causes concern among growers when its branches suddenly turn yellow and dry. This article systematically analyzes five common causes and corresponding solutions through the dimensions of disease diagnosis, treatment process, and preventive maintenance, to help the plant return to a healthy growth state.
One, Diagnosis of Branch Drying and Yellowing Pathology
1.1 Identification of Root Rot Disease
When branches show signs of dehydrated drying, it is first necessary to check the condition of the roots. Gently move the surface soil with a gardening铲, and if brown, soft roots with a sour smell are found, it can be diagnosed as root rot. This condition can lead to the interruption of the water conduction system, causing the branches to turn yellow from top to bottom.
1.2 Pathway of Fungal Infection
The pathogenic fungi are often transmitted through moist environments caused by excessive watering. Under a microscope, Fusarium spores can be seen attached to damaged root hairs. Data shows that 80% of yellowing cases are directly related to root lesions caused by excessive watering.
Two, Systematic Treatment Plan
2.1 Root Surgery
(1) Pruning and Disinfection: Use alcohol-disinfected pruning shears to remove all blackened and rotting roots, retaining the healthy white rootstocks; (2) Medication Soaking: Dilute carbendazim at a ratio of 1:800 and soak the roots for 30 minutes, then dry in the shade; (3) Potting Operation: Use a new flower pot with陶粒 (ceramsite) as the base and a breathable matrix of decomposed leaf soil: perlite = 3:1.
2.2 Precise Water Management
Establish a periodic watering schedule: 7-10 days/week in spring and autumn, 5-7 days/week in summer, and 15-20 days/week in winter. Use the "pot-lifting method" to judge: water thoroughly when the weight of the potting soil is reduced by 1/3. Special tip: In air-conditioned environments, use misting to maintain 40%-60% air humidity.
2.3 Optimization of Lighting Strategy
Gradually move the plant to an east-facing windowsill to receive 3-4 hours of morning sunlight daily. Use a shade with 40% light transmission to filter strong midday sunlight, ensuring an average daily light intensity of 5000-8000 lux. Rotate the pot 45 degrees monthly to ensure even light exposure.
Three, Long-term Maintenance Mechanism
Establish a maintenance log to record water and fertilizer management data, applying slow-release fertilizer every quarter to supplement nitrogen, phosphorus, and potassium elements. Regularly check the backs of leaves to prevent pests like spider mites, and promptly remove scale insects with alcohol cotton swabs. Use a thermometer and hygrometer to monitor environmental parameters in real-time, maintaining an ideal growth temperature of 18-28℃.
Through the above systematic diagnostic and treatment plan, combined with scientific maintenance measures, more than 90% of diseased plants can recover within 2-3 months. It is recommended to carry out preventive root soaking every six months, using biological preparations like Bacillus subtilis to enhance the plant's resistance to diseases.