Because of the poor control of the water quantity of the white orchid, the pot soil will be too dry or too wet, which will affect the normal growth of the fleshy root system and lead to the appearance of the yellow leaves.
When there is a problem in temperature control, too high temperature will cause abnormal transpiration of leaves, resulting in yellowing.
The white orchid needs sufficient sunlight, otherwise it will inhibit the normal growth of the plant and produce yellow leaves.
Yellowing disease is very easy to cause the leaves to turn yellow and fall off, which will cause the whole plant to die seriously.
The harm of root rot is more serious, it will make the roots black and rotten, and affect the leaves from bottom to top.
The amount of water should be adjusted continuously according to the climate humidity and other aspects to ensure the normal and appropriate humidity of the soil.
In order to avoid the excessive temperature difference, it is appropriate to maintain the average temperature of 5-10 ℃. When the temperature rises, special attention should be paid to the ventilation and ventilation of the breeding environment, and at the same time, the dry air should be humidified.
In order to ensure sufficient light, it is necessary to place the white orchid in the courtyard, balcony, windowsill and other places where the light has a long time. However, in summer, it is necessary to avoid direct sunlight, which will also cause adverse effects on the plants.
Slight acid soil should be selected, and a small amount of alkaline inorganic fertilizer should be applied. When the disease occurs, ferrous sulfate (0.2%) should be sprayed on the leaf surface once a week, 3-4 times in a row, or once a week, 3-4 times in a row.
The occurrence of this disease is usually due to the excess water, watering should be done "not dry, not water", and keep the soil loose, enhance its drainage. When there is a lot of rainfall during the Meiyu period, timely measures should be taken to protect the plants from the rain; when the basin is on, more broken tiles can be added at the bottom of the basin to speed up the flow of water and promote drainage.
The situation of yellow leaves is actually very good to solve. Each reason is closely related to our daily maintenance work. As long as we can do the work carefully at ordinary times, we don't need to worry about the green in the basin will leave us.
