What is the reason for the yellowing of the leaves of the orchid, and what should I do if the leaves

Ways to improve yellowing of orchid leaves:

1.Prune the yellow leaves.

Solution: When the number of yellowing of orchid leaves is small and the area is small, you can not prune first, strengthen maintenance management, and wait for the leaves to slowly turn back to green, if the number of leaves yellowing is large and the area is large, and there are dry, drooping and malaise, etc., it may be because of the infection of germs, it needs to be sterilized with scissors and cut off with the petiole together, cut off and burned, and spray carbendazim on the plant to disinfect and sterilize.

2.Lighting management.

The yellowing of orchid leaves may also be caused by improper light, when the plant is exposed to strong direct light, the leaves will turn yellow when burned, or the orchid will be cultivated in a dim environment for a long time, and the leaves will fade and turn yellow due to the lack of light to synthesize chlorophyll.

Solution: After pruning off the yellow leaves, place them indoors with sufficient scattered light, and release them outdoors to receive light when the light is weak.

3.Water properly.

When orchids need a lot of water, too little watering can easily cause dehydration of the plant, and the leaves of the plant will not only turn yellow after dehydration, but also may wither.

Solution: It needs to be watered in time, watering follows the principle of "seeing dry and wet", watering when the surface of the soil is dry, and watering can only be stopped until the water seeps out from the bottom of the pot.

4.Root trimming and replanting.

When overwatering and fertilizing too thickly, it can cause damage to the roots, causing the roots to rot, and the rotten roots cannot deliver enough water and nutrients to the leaves, and the leaves will lack water and nutrients and the leaves will be yellow.

Solution: The roots need to be dug out of the soil, pruned to remove rotten roots, wilted roots and dense roots, apply carbendazim to the wound to disinfect, and then place it in a ventilated place to dry until the wound shrinks, and then change the soil and replant after the wound shrinks.

5.Reduce fertilization.

Long-term application of large amounts of fertilizer, or the use of fertilizers that are too concentrated, can easily cause the yellowing of orchid leaves.

Solution: Appropriately reduce fertilizer when fertilizing, and water once in the second article after fertilization to dilute the fertilizer.

6.Disease elimination.

When orchids encounter diseases, their leaves also turn yellow.

Solution: Observe the state of the orchid in time, and when there are pests and diseases, analyze it well, and use it scientifically.

1. Illumination. Reason: If the orchid is placed in a cool place for a long time during the maintenance period, the leaves will turn yellow due to the lack of light, and even the leaves may wither and fall off in severe cases.

Solution: If you find this situation, move the plant to a place with scattered light as soon as possible, so that it can be exposed to the sun. It is best to place it on an indoor balcony, but be careful to block out strong sunlight.

2. Humidity. Reason: Its growth needs a high humidity environment, if the humidity is too low indoors, it is easy to have yellow leaves.

Solution: Use a watering can to spray water around the plant several times a day to increase the humidity, or increase the amount of water appropriately to hydrate more.

3. Temperature. Reason: Although it is slightly cold-tolerant, it is easy to sleep early when the temperature is lower than 5 degrees, and the leaves are easy to turn yellow.

Solution: If the yellow leaves are caused by temperature, they should be removed in time, and the temperature should be controlled, and it is best to maintain it between 15 degrees and 22 degrees, so that it can recover soon.

Fourth, fertilization. Reason: If the fertilizer applied is too much or the concentration is too high during maintenance management, the root system will be burned, and the leaves will turn yellow and dry up.

Solution: Fertilizer caused by to stop fertilization, if it is serious, check the root system, there is rot to change the pot and change the soil, a small amount of Bika water-soluble fertilizer fertilizer and watering together in the later stage.

Orchid leaves turn yellow, and these causes cannot be ignored.

Orchids are one of the flowers that everyone likes to buy during the Spring Festival. Due to its huge flowers and abundant colors, it is a great ornamental plant. It is often placed indoors, balconies, windowsills, etc.

But in the process of cultivation, the leaves of the large-flowered orchid will turn yellow and zoom. So, what do we do? Here, the horticulturist will introduce the causes and solutions of yellowing and burnt leaves of Cymbidium grandiflora.

1. The reason for watering is that the large-flowered orchid likes to be moist, but if it is watered too much and too often, the leaves will turn yellow and burnt yellow. Solution: The substrate of potted plants has strong water retention, is a fleshy root system, and is more resistant to mild drought.

Therefore, in the usual maintenance, do not water too much too often. For water leakage, use closed round water close to room temperature. The number of days between watering can be grasped according to room temperature.

When watering, you should water slowly, and don't rush to pour down. 2. Transplant CauseIf the leaves are found to be yellow and scorched soon after purchase, this situation may be the reason for the transplantation. At this time of the Spring Festival, the large-flowered orchids sold on the market will be replaced with beautiful and noble porcelain pots.

However, in the process of repotting, sometimes the roots will be injured, or some unfinished flower soil will be added. When the fermentation of organic matter ** releases heat energy, it can cause damage to the flowers. The root system is burned, causing the plant to yellow or die.

Solution: It is recommended to carefully check the soil in the pot to ensure the healthy growth of the flowers. 3. Temperature reasons: Although Cymbidium grandiflora is hardy, it is unbearable at lower temperatures.

On the way home, it may be attacked by cold air, causing damage to the leaves or flowers. It didn't show up at the time, and it took a few days for the symptoms to slowly appear. Workaround:

This damaged flower can only be trimmed off the yellowed leaves and slowly conditioned, but it generally does not die. Four. Environmental reasons: Cymbidium grandiflora is a flower with high air humidity.

If the indoor air humidity is low and the temperature is high, the yellow leaves are easy to be scorched. In addition, there may be a dry environment such as direct air conditioning or close to heating, and yellow leaves with scorched edges are also prone to appear. Workaround:

You can spray water several times a day to increase the humidity of the small environment. In this case, it would be nice to adjust it. But the yellow leaves can only be cut.

Fifth, the reason for the light is that the large-flowered orchid likes light but is afraid of direct sunlight. If there is no light or the light is too strong, it will cause the leaves to turn yellow and burn. Workaround:

Generally scattered light is the best way to grow the orchid, too weak light will cause some diseases of its poor growth. Generally, the indoor location determines the placement of flowers in indoor appreciation, but at this time, it is also necessary to pay attention to whether the flowers are suitable for the small environment of this location. 【Tips】During transportation, the temperature of the return rolling should be kept above 5.

If the bracts and leaves turn yellow, there may be frost damage. Do not water and fertilize during the flowering period, and then water and fertilize after the flowering period, otherwise the flowering period will be shortened, and improper fertilization will cause fertilizer damage.

Summary. Hello, if you put it in a place where the air is not very circulating, and you water it more when watering, it is prone to soft rot, so that the leaves start to dry up from the roots. 2. Treatment:

If the condition is not very severe, the diseased leaves can be removed first. The plants are then sprayed with a diluted carbendazim solution to control the germs. If the condition is more severe, the healthy part of it needs to be cut off and replanted.

Hello, if you put it in a place where the air is not very circulating, and you water it more when watering, it is prone to soft rot, which will cause the leaves to become dry and noisy from the roots. 2. Treatment method: If the situation is not very serious, you can remove its diseased leaves as soon as possible.

The plants are then sprayed with a diluted carbendazim solution to control the germs. If the situation is more severe, it is necessary to cut off the healthy part of it, and plant it separately.

It is more afraid of waterlogging. It is also prone to this problem if it is exposed to excessive humidity and stagnant water for a long time. Solution:

Replace it with some new flower soil with better drainage ability. After that, control the watering to keep the soil slightly moist and do not let the soil accumulate water. Slowly.