How to deal with yellow orchid leaves

The ornamental value of orchids is relatively high, and it is also a variety of indoor ornamental plants that many flower lovers like. If the leaves of orchids turn yellow, it will not only affect the ornamental value, but also represent the health problems of orchids, so how can we prevent the leaves of orchids from yellowing? What should be done when the leaves of orchids turn yellow?

Orchids (details)

1. Watering should be appropriate. After the basin soil is dry, the amount of water should not be too much at one time, nor should it be watered for a long time because of drought.

2, the temperature should be kept stable, but high or too low, 5-10 ℃ is the most suitable, the temperature rises, the muggy environment should pay attention to ventilation, and strengthen humidity management.

3, the white orchid is suitable for planting in the courtyard or home balcony, windowsill and other places, need sufficient sunshine, but can not be exposed to the sun, the summer sun should pay attention to shade.

4. The slightly acidic soil should be used in the white orchid pot soil, not more alkaline inorganic fertilizer or water, 0. 2% ferrous sulfate is foliar sprayed once a week.

5, root rot is mainly caused by too much water, usually wait until the basin soil surface whitening before watering, and often loosen the soil. When Mei Yu dies or Rain Water is too much, it is appropriate to move under the eaves or indoors to take shelter from the rain.

For the orchid leaves that have been withered at the tip, if the situation is not too serious, the method of manual cutting can be used, using scissors (preferably by alcohol disinfection) by "∧" in the shape of about 10 mm below the dry part, so that it can still be kept full of green, and it is better to spray on the fungicide after pruning.

What to do about the yellowing of white orchid leaves? the causes of yellowing of white orchid leaves and their solutions

Many people do not know what to do for the yellowing of white orchid leaves. Let's talk about the causes and solutions for the yellowing of white orchid leaves.

The reason why the leaves of white orchids turn yellow:

1, too much water: White orchid pot soil watering too much or too little, sometimes dry and wet, etc., fleshy roots can not stand, will cause yellow leaves, and so on.

2, the temperature is too high: the yellowing of the leaves of white orchids has a lot to do with the temperature, and the leaves will turn yellow when the temperature is too high and muggy.

3, too little light: White orchids like the sun, if the sun is too little, it will also cause poor plant growth and yellow leaves.

4. Chlorosis: yellowing of white orchids will also cause yellowing and shedding of leaves, and in serious cases, plants will die.

5. Root rot: White orchids have root rot, and when the roots rot and blacken, the leaves will also lead to yellowing and shedding.

The solution to the yellowing of white orchid leaves:

1. Watering should be appropriate. After the basin soil is dry, the amount of water should not be too much at one time, nor should it be watered for a long time because of drought.

2, the temperature should be kept stable, but high or too low, 5-10 ℃ is the most suitable, the temperature rises, the muggy environment should pay attention to ventilation, and strengthen humidity management.

3, the white orchid is suitable for planting in the courtyard or home balcony, windowsill and other places, need sufficient sunshine, but can not be exposed to the sun, the summer sun should pay attention to shade.

4. The slightly acidic soil should be selected in the white orchid pot soil, and more alkaline inorganic fertilizer or water should not be applied. If chlorosis occurs, it should be foliar sprayed with 0.2% ferrous sulfate in time, once a week, 3 ^-4 times continuously, or with alum fertilizer water once a week, 3 or 4 times continuously, to control the disease.

5, root rot is mainly caused by too much water, usually wait until the basin soil surface whitening before watering, and often loosen the soil. When there is too much Mei Yu or Rain Water, it is appropriate to move under the eaves or indoors to take shelter from the rain; when putting on the basin, more broken tiles should be added to the bottom of the basin to smooth drainage and put up the basin bricks to speed up the flow of water.

What to do about the yellowing of orchid leaves? analysis on the causes of yellowing of orchids

What if the orchid leaves turn yellow? I'm sure a lot of friends want to know. Orchid leaves yellowing must first find the cause, in order to deal with the problem pertinently. Next, let's take a look at the reason why the leaves of orchids turn yellow.

First, the reason for the yellowing of orchid leaves

The main results are as follows: 1. Due to the sudden change of the conservation environment of orchids, the leaves do not absorb water well, resulting in the phenomenon of yellow leaves.

2. Potted orchids bought directly are newly potted by merchants, and orchids do not adapt to the soil, which temporarily affects nutrient absorption and leads to yellow leaves.

3. Water yellow, that is, too much water causes the soil to accumulate water for a long time, poor air permeability and even some fibrous roots rot, showing that the tender leaves are dark yellow and dull, and the new shoots shrink.

4. Fat yellow, that is, fat, showing that the tip of the old leaf turns yellow and falls off, and the new leaf is thick and shiny, but it is generally concave and convex. If it is a precious flower, you can sprinkle a layer of pakchoi or radish seeds and pull it out a few days after emergence to consume nutrients.

5. Dry yellow, due to lack of water or dehydration for a long time, although the new leaf color is normal, but the lower leaves gradually dry yellow shedding aging.

6. Alkali yellow, especially some flowers in the south like acidic soil, while the alkaline water quality in the north shows that the leaves gradually fade, turn yellow or even fall off.

7. If the leaves of orchids turn yellow and grow normally, it may be caused by excessive light.

8. The leaves of orchids turn yellow and the new buds are small, which is due to excessive light, lack of nitrogen fertilizer and necessary humidity.

9. Yellowing and shedding of old leaves, which is caused by normal aging or turning over the basin.

10. the old leaves yellowed and fell off quickly, watered too often, and planted improperly.

11. In addition, flower friends can check whether the rotten roots of orchids are rotten or whether the plants are not clean. If the rotten roots are disinfected as soon as possible, they can be maintained in dry ventilation.

II. Matters needing attention in orchid culture

1. Orchids are mainly distributed in the southeast and southwest. Most of them are wild in the shade places under the sparse forests and rock edges of the moist valleys, so they like warm and humid climate, like shade and dampness, and require shade of 70% to 90%, avoiding high temperature, dryness and strong light.

2. The withered and yellow old leaves and disease and insect leaves should be cut off continuously in orchid cultivation to facilitate ventilation. After the flower buds are unearthed, each plant should leave a strong flower bud and the rest should be cut off so as not to consume too much nutrients and affect flowering in the coming year. After the flower fades, the flower stalk should be cut off.

3. In winter, attention should be paid to cold protection, geophytic orchids have strong cold resistance, while orchids require higher overwintering temperature, so they should move indoors or use plastic sheds as soon as possible to avoid cold, and the room temperature should be kept at 10: 15 ℃. Indoor maintenance should pay attention to ventilation. The climate is getting warmer in spring, and gradually move the orchid to the courtyard or balcony.

4. Natural Rain Water, stream water, well water and river water are the best for family cultivation of orchids. If tap water is used, it should be stored in a tank first, and then used after being exposed to the sun to remove bleach. If the flowers are watered with tap water for a long time, the cultivation substrate will be gradually alkalized. Ferrous sulfate can be applied every once in a while to increase the acidity of the soil. in addition, watering orchids with fermented Amoy rice water can also keep the soil slightly acidic.

The above is the orchid leaf yellowing how to do the relevant introduction, only understand the orchid leaf yellowing reason, can deal with the orchid leaf yellowing problem, I hope the above content is helpful to everyone.