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Kalanchoe is loved by many gardening enthusiasts for its long blooming period and auspicious symbolism. However, the issue of rotting leaves on Kalanchoe has caused headaches for many. This article will provide a detailed analysis of the reasons for Kalanchoe leaf rot and its prevention and treatment methods to help you grow healthy and beautiful Kalanchoe.
Reasons for Kalanchoe Leaf Rot1. Improper Water Management
Kalanchoe requires a higher amount of water, but excessive watering can lead to root hypoxia and subsequent root rot, which then causes leaf rot. Uneven watering can also result in leaf rot.
2. Insufficient Light
Kalanchoe needs plenty of sunlight. If it is kept in a dark environment for a long time, the leaves will turn yellow and rot due to the lack of photosynthesis.
3. Soil Issues
Soil that is too heavy, poor drainage, or not thoroughly disinfected can lead to root rot in Kalanchoe, which can then cause leaf rot.
4. Pest and Disease Damage
Common pests include aphids and red spiders, while diseases include black spot disease and soft rot disease. These pests and diseases can damage Kalanchoe leaves, leading to leaf rot.
5. Temperature and Humidity
Kalanchoe thrives in warm, dry environments. If the temperature is too high or humidity is too high, it can easily cause leaf rot.
Prevention and Treatment Methods for Kalanchoe Leaf Rot1. Improve Water Management
Watering should be moderate, keeping the soil slightly moist. During the hot summer months, reduce the watering frequency appropriately. Avoid watering directly on the leaves to prevent the invasion of pathogens.
2. Increase Sunlight
Place Kalanchoe in a sunny location, ensuring at least 4 hours of direct sunlight each day. In winter, you can increase indoor lighting appropriately.
3. Improve Soil Conditions
Choose well-draining soil, change the potting soil regularly to ensure good aeration, and disinfect the soil before planting.
4. Control Pest and Disease Damage
Regularly inspect Kalanchoe and use pesticides promptly to control pests. When diseases occur, you can spray with chemical or biological pesticides.
5. Control Temperature and Humidity
Keep the indoor temperature between 15°C and 25°C, and humidity between 40% and 60%. Avoid placing Kalanchoe in damp, poorly ventilated environments.
There are many reasons for Kalanchoe leaf rot, but as long as we master the prevention and treatment methods, we can effectively avoid this issue. During maintenance, pay attention to water management, sunlight, soil, pest and disease control, and temperature and humidity. With these considerations, your Kalanchoe will surely grow robustly and bloom beautiful flowers.