Causes and Solutions of yellowing and falling leaves of White Orchid leaves

In the process of breeding white orchids, the leaves are often yellowed or even a large number of fallen leaves are caused by improper maintenance and management, so what is the reason for this phenomenon? The following together with the editor to understand the reasons for the yellowing and shedding of white orchid leaves and the corresponding solutions.

1. Long-term de-fertilization: there is no application of nitrogen fertilizer or change of water for a long time, and there is a lack of nitrogen and other nutrient elements in the water, resulting in thin and yellow branches and leaves. It is necessary to change into new culture water in time and gradually apply rarefied mature liquid fertilizer or compound flower fertilizer.

2. Excessive fertilization: if there is too much fertilization, the new leaves will be thickened, and the old leaves will be rugged, and the dry tips of the old leaves will fall off. You should immediately stop fertilization, increase the amount of water exchange, make the fertilizer lose, or immediately pour the pot, rinse the bulb root with water and then replant it into the basin.

3, hot and high temperature: if you put the flowers in a high temperature place and let the strong light shine directly, it is very easy to cause the young leaf tip and leaf edge to scorch, or the leaf yellow to fall off. Move to a well-ventilated shady place in time.

4. Excessive shading: if flowers are placed in shaded places or places with insufficient light for a long time, it will cause branches and leaves to turn yellow.

5. Alkali in soil and water: due to the lack of soluble iron and other elements that can be absorbed by the water, the leaves will gradually turn yellow. Acid soil and water should be selected when planting, and alum and fertilizer water should be often irrigated during the growth period.

6. Lack of ventilation: if too much nitrogen fertilizer is applied, the branches and leaves will grow luxuriantly, coupled with long-term unpruned, resulting in insufficient light in the inner chamber branches and leaves, which is easy to cause leaves to yellowing and falling off. Reasonable fertilization should be applied and pruning should be strengthened to make it ventilated and transparent.

7, air drying: when the indoor air is too dry, flowers often appear leaf tip dryness or leaf edge scorching and other phenomena. Attention should be paid to water spraying, plastic film cover and other methods to increase air humidity.

8. Improper temperature: when the room temperature is too low in winter, the flowers suffer from cold damage, which leads to the yellowing of leaves and death in severe cases. If the room temperature is too high, the transpiration of the plant is too high, and the root water and nutrients are in short supply, the leaves will turn yellow. Please pay attention to adjust the room temperature in time.

9. Disease and insect damage: leaf spot disease caused by fungi and other bacteria is easy to cause local necrosis of leaves, yellow spots or patches appear, when the whole leaf is withered and yellow and shedding off seriously, and yellow-green mottle appears on the leaves after being infected by mosaic virus; suffer from shell insects, red spiders and so on.

10. Strong stimulation: excessive concentration of pesticides in the prevention and control of diseases and insect pests, or pollution by toxic gases in the atmosphere, or sudden watering of cold water when the temperature is high, are easy to cause local yellowing and scorching of the leaf tip or leaf surface, or even death of the whole plant. Therefore, we should pay attention to the rational use of pesticides and try to eliminate air pollution sources. Avoid watering flowers with cold water around noon in midsummer. Finally, it should be mentioned that the yellow leaves of potted flowers are sometimes caused by one reason, but they are often caused by a variety of factors, so a correct diagnosis should be made to prescribe the right medicine to the case.

The above 10 are the main reasons for the yellowing of white orchid leaves and a large number of fallen leaves. If your white orchid also has this phenomenon, compare it with the above content and find out the cause and solve the problem in time.