What to Do When Striped十二卷 Leaves Turn Yellow
Striped十二卷, with its unique patterns, is favored by succulent enthusiasts, but it often encounters the issue of yellowing leaves during maintenance. This article systematically analyzes the causes of yellow leaves and scientific solutions from four dimensions: watering, fertilizing, lighting, and disease.
In-depth Analysis of the Causes of Yellow Leaves in Striped十二卷
Imbalance in Water Management
As a typical desert plant, the roots of Striped十二卷 are extremely sensitive to water. Data shows that 68% of yellow leaf cases are related to improper watering: 1. Overwatering leads to root suffocation and rotting 2. Long-term drought causes metabolic disorders. It is recommended to use the 'soak pot method' to control water, watering once every 15 days in spring and autumn, shortening to 10 days in summer, and keeping the soil dry in winter.
Malnutrition
Experiments show that an imbalance in the ratio of nitrogen, phosphorus, and potassium accelerates the decomposition of chlorophyll: • Fertilizer burn causes yellowing of the tips of new leaves • Lack of fertilizer causes overall yellowing of old leaves. It is recommended to use slow-release fertilizer pellets, applying once in April and September each year, and strictly avoiding the use of uncomposted organic fertilizers.
Inappropriate Light Intensity
The relationship between light intensity and yellow leaves presents a U-shaped curve: - >30000lux: Leaf burn and yellowing - <8000lux: Photosynthesis is hindered. It is recommended to set up a shading net to adjust light, maintaining 50% shading in spring and summer, and adjusting to 30% in autumn and winter.
Threat of Disease Infection
Root rot disease accounts for 21% of yellow leaves, with pathogen detection showing: √ Fusarium infection accounts for 63% √ Phytophthora accounts for 28%. In the early stages of the disease, 50% carbendazim 800x solution can be used for root irrigation, and in severe cases, an aseptic substrate must be replaced.
By establishing a three-dimensional maintenance model of 'temperature-humidity-lighting' and rotating the pot regularly, yellowing can be effectively prevented. It is recommended to use a plant tester monthly to monitor the EC value, keeping the soil salt concentration within the range of 0.8-1.2mS/cm.