Orchids, known as "gentlemen among flowers," have been loved by people since ancient times. In the process of caring for orchids, we often encounter a problem: the leaves of orchids gradually turn yellow. This not only affects the ornamental value of orchids but also confuses us in the care of orchids. This article will analyze the reasons for the yellowing of orchid leaves and provide corresponding care skills.
Reasons for the Yellowing of Orchid Leaves1. Improper Water Management
Orchids are sensitive to water demand. Too much or too little water may cause the leaves to turn yellow. Excessive watering can lead to root hypoxia and cause root rot; insufficient watering will make orchids lack water, resulting in yellow leaves.
2. Insufficient Light
Orchids prefer scattered light. Excessive direct light or weak lighting will affect the growth of orchids. Insufficient light can cause orchid leaves to turn yellow and grow slowly.
3. Improper Fertilization
Improper fertilization is also one of the reasons for the yellowing of orchid leaves. Overuse of fertilizer can lead to high soil salinity, affecting the normal growth of orchids; while insufficient fertilization can cause orchids to be malnourished and the leaves to turn yellow.
4. Disease and Pest Infections
Disease and pest infections are also one of the reasons for the yellowing of orchid leaves. Common diseases and pests include powdery mildew, anthracnose, and aphids. These diseases and pests will invade orchid leaves, causing them to turn yellow.
Orchid Care Skills1. Water Management
Watering orchids should follow the principle of "watering when dry and keeping the soil slightly moist." In high-temperature summers, it is appropriate to increase the frequency of watering; in low-temperature winters, it is necessary to reduce the frequency of watering to avoid root rot.
2. Light Management
Place orchids in a place with sufficient scattered light, avoiding direct sunlight. In high-temperature summers, it is necessary to shade appropriately to prevent orchid leaves from getting sunburned.
3. Fertilization
Fertilizing orchids should follow the principle of "applying thin fertilizer frequently." Generally, apply a compound fertilizer once a month. When fertilizing, avoid direct contact between fertilizer and leaves to prevent fertilizer damage.
4. Disease and Pest Control
Regularly inspect orchids and deal with diseases and pests in a timely manner. Pesticides can be used for prevention and control, while also maintaining a ventilated and dry growing environment for orchids.
There are many reasons for the yellowing of orchid leaves, and we need to analyze and solve them according to specific situations. Mastering the correct care skills can make orchids grow strong and bloom beautiful flowers. I hope this article is helpful to you.
References:
Orchid Care Manual, edited by the Chinese Orchid Society
Techniques for the Control of Orchid Diseases and Pests, published by the Chinese Agricultural Publishing House