Causes of yellowing of Jianlan leaves have become a favorite for many flower lovers because of its beautiful color and rich aroma. Many flower lovers will encounter the yellowing of Jianlan leaves during the maintenance process. The problem of yellowing of Jianlan leaves not only affects the beauty of the plant, but may also threaten its growth and health. This article will provide you a detailed analysis of the reasons for yellowing of Jianlan leaves and provide effective maintenance methods to help your Jianlan rejuvenate. Reasons for yellowing of Jianlan leaves 1. Improper water management Water is a necessity for plant growth, but too much or too little water will cause yellowing of the leaves. Too much watering will lead to hypoxia in the roots and affect nutrient absorption; Too little watering will cause the leaves to lack water and cause the leaves to yellowing.
2. Insufficient light Jianorchids prefer sufficient scattered light. Insufficient light will cause the leaves to turn yellow or even wither. If Jianorchids are in a dark environment for a long time, the leaves will gradually lose their vitality.
3. Improper application of fertilizer Excessive or insufficient application of fertilizer will cause yellowing of leaves. Excessive application of fertilizer will cause excessive soil salinity and damage to root systems. Insufficient fertilizer will prevent plants from obtaining enough nutrients and affect growth.
4. Invasion of pests and diseases Jianorchids are vulnerable to pests and diseases, such as aphids, red spiders, etc. These pests and diseases will absorb nutrients from the plant and cause the leaves to turn yellow. 1. Appropriate watering According to the growth habits of Jianlan orchids, keep the soil slightly moist. When watering, avoid directly pouring on the leaves to avoid causing diseases. When high temperatures in summer, reduce the number of watering times and keep the soil moist.
2. Place the orchid in a place with sufficient scattered light under moderate light to avoid direct sunlight. If the light is insufficient, the flower pot can be moved appropriately to allow it to accept more scattered light.
3. Reasonable fertilization According to the growth stage of Jianlan, reasonable fertilizer should be applied. During the vigorous growth period, nitrogen fertilizer can be applied; during the flowering period, phosphorus and potassium fertilizer can be applied. When applying fertilizer, attention should be paid to controlling the amount to avoid excessive amounts.
4. Prevent pests and diseases and insect pests and regularly inspect Jianlan. If pests and diseases are found, they can be treated in a timely manner. Insecticides and fungicides can be used for prevention and control. At the same time, pay attention to maintaining ventilation and reducing the incidence of pests and diseases.
There are many reasons for the yellowing of Jianlan leaves, but as long as you master the correct maintenance method, this problem can be effectively solved. I hope this article can help you and make your Jianlan rejuvenate and bloom beautiful.
References: "Guide to Flower Conservation", China Agricultural Press, 2018 edition.