What is going on with the dry leaves of orchids?
The editor will tell you about why the dry leaves of orchids occur and share some experience on green plant maintenance regarding the causes and treatment methods. Details are as follows:
The tip of the orchid leaf is the most fragile and sensitive part. Excessive exposure to sunlight, over-wet or over-dry conditions, extreme heat or cold, poor ventilation, excessive concentration of medications, viral infections, or aging can all cause the leaf tip to becomewithered. It can be said that whether the leaf tip is withered or not is a "barometer" of the orchid's health.
The reasons for the withering of orchid leaf tips are complex. When this situation occurs, it is first necessary to carefully observe and analyze the different conditions to identify the cause and take targeted preventive and control measures. Generally, there are six reasons for the withering of orchid leaf tips. Let's take a look together!
1: Root rot or overly wet potting soil, "the disease is in the roots, the symptoms are on the leaves." Many cases of withered leaf tips are a sign of root rot. Overly dry or wet potting soil, or long-term excessive moisture and poor ventilation, are among the causes of root rot.
Orchids with rotting roots usually show yellowing and blackening of the lower leaves, followed by yellowing of the foot leaves, and some of the leaf hearts also show symptoms of yellowing. If multiple leaves in a pot have blackened tips, and the lower leaves of new seedlings turn yellow, it can be basically confirmed that it is root rot.
What is going on with the dry leaves of orchids?
How should we deal with this situation? First, we need to remove the orchid seedlings, wash them, and cut off the decayed parts. Then, soak them in a diluted solution of methyl thiophanate or carbendazim fungicides for 3-5 minutes, place them in a shaded area to let the wounds slightly dry and become slightly shriveled, and then disinfect the cut ends with wood ash or sulfur powder. After the incision contracts, replant them, and it is recommended to use more breathable and loose planting material.
2: Fungal infection
This type of situation is also easy to identify. Before the yellowing of the tip appears, there are often spots on the leaves that gradually extend to the tip, and the leaves first turn yellow, followed by gradual blackening and withering.
If the symptoms of the fungal infection are mild, simply cut off the diseased and withered tip with a disinfected pair of scissors and spray the leaves with an antibacterial agent like carbendazim.