With the popularity of hydroponic plants, more and more people are trying to care for hydroponic large-leaf rubber trees at home. Many beginners encounter a problem during the maintenance process: the leaves of large-leaf rubber trees turn yellow. This not only affects the appearance of the plant but may also impact its growth. This article will analyze in detail the reasons for the yellowing of leaves in hydroponic large-leaf rubber trees and provide solutions to help you easily deal with this common issue.
Reasons for yellowing leaves in hydroponic large-leaf rubber trees1. Water quality issues
Hydroponic plants have high requirements for water quality. If the water is of poor quality, containing excessive harmful substances or heavy metal ions, it can lead to yellowing leaves in large-leaf rubber trees. Frequent and improper water changes during the hydroponic process may also cause the leaves to turn yellow.
2. Insufficient lighting
Large-leaf rubber trees prefer a semi-shaded environment. Prolonged exposure to insufficient light can cause the leaves to turn yellow. However, excessively strong direct sunlight can also lead to leaf sunburn, resulting in yellowing leaves.
3. Water temperature issues
Hydroponic large-leaf rubber trees have strict requirements for water temperature. Water temperatures that are too high or too low can affect plant growth. High water temperatures can cause leaves to turn yellow, while low temperatures may lead to root rot.
4. Inadequate nutrition
Hydroponic plants require sufficient nutrient elements during growth. If the nutrient supply is insufficient, it can also cause leaves to turn yellow. Common reasons include improper fertilizer application, insufficient fertilizer, or poor fertilizer quality.
5. Pest and disease infections
Pest and disease infections are also reasons for yellowing leaves in large-leaf rubber trees. Common pests and diseases include scale insects, red spiders, and leaf spot diseases.
Methods for preventing yellowing leaves in hydroponic large-leaf rubber trees1. Improve water quality
Regularly change clean water to ensure good water quality. You can use deionized water or purified water for hydroponics to reduce the impact of harmful substances on the plant.
2. Adjust lighting
Place the large-leaf rubber tree in a semi-shaded environment, avoiding prolonged exposure to strong direct sunlight or dark places. In the summer, you can provide appropriate shading, and in the winter, you can increase the duration of exposure to light.
3. Control water temperature
Keep the water temperature within an appropriate range. In the summer, the water temperature should be controlled below 25°C, while in the winter, it should be above 15°C.
4. Apply fertilizer appropriately
Based on the plant's growth stage and needs, apply hydroponic-specific fertilizers in appropriate amounts. During the fertilization process, pay attention to fertilizer concentration and frequency to avoid over-fertilization.
5. Prevent pests and diseases
Regularly inspect the plant and take timely measures when pests or diseases are found. You can use pesticides or fungicides for prevention and treatment, while also ensuring indoor ventilation to reduce the probability of pests and diseases.
There are many reasons for the yellowing of leaves in hydroponic large-leaf rubber trees, and understanding the reasons and taking corresponding measures can help restore the plant's growth. I hope this article can provide assistance for your maintenance journey.