What happened to the new flower bones of the phalaenopsis that turned yellow and fell

It can be said that there are too many reasons for this. This one if it's too dry. If there is no nutrition, then it will definitely not be able to bloom again.

That is to say, in fact, when Phalaenopsis is playing an isolated island. It's nutritious. And moisture must be sufficient.

And it also needs to be exposed to sunlight.

Situation 1: If the phalaenopsis orchid has just been bought back a few days, the bud is a normal phenomenon, caused by changes in the environment, some varieties have strong adaptability, rarely bud, and some varieties have poor adaptability, and the bud is serious when bought home, and there is no solution to this situation.

Situation 2: If you raise the flowers by yourself, and the buds suddenly disappear, there are two reasons:

Reason 1: It may be that the cold wind is blowing, the phalaenopsis can not blow the cold wind, try not to open the window of the room where the phalaenopsis is located, you can choose to open the windows of other rooms to strengthen ventilation.

Reason 2: The water is rotten and the roots are rotten, and the phalaenopsis should be watered thoroughly (after the moss is dried, the orchid roots in the pot can be watered from green to white), and they can not be watered every day.

1. Judge whether the light is too strong.

2. Replenish water in time, but do not pour water on the flower bones.

3. Reasonable fertilization, especially phosphate fertilizer and potassium fertilizer, do not apply nitrogen fertilizer.

4. It should be placed in a ventilated place.

Analysis of the causes of bud dropping.

The temperature difference between day and night is too large.

The temperature difference between day and night is too large, and the plant cannot adapt to the sudden change in temperature conditions, which will cause bud drop.

mites and other insect pests.

Generally, the flower buds will suddenly become dehydrated, and the color will also change to an abnormal dark red, and when the insect infestation is serious, all the flower buds will fall.

Damaged root system. Improper application of water and fertilizer will cause abnormal growth of the root system, and if the root system remains in a state of hypoxia for a long time, it will be difficult to provide sufficient nutrients, resulting in bud loss.

Environmental pollution. When the air is polluted, the harmful substances contained in it enter the tissues of the buds due to the effect of osmotic pressure. At this time, the damaged bud is opened, and small water droplets can be seen inside; Most of the contaminated buds are yellowish-brown, and in severe cases, they are black, and they will become moldy and fall off.

Insufficient photosynthesis.

If there is not enough light during the day, respiration will increase at night, which will make the nutrients inside the plant in short supply, making it difficult to maintain normal bud growth.

Poor ventilation in the greenhouse.

If the indoor air is not ventilated in a timely and adequate manner, it is difficult to provide sufficient fresh carbon dioxide for Phalaenopsis for photosynthesis, and the nutrient production will also be insufficient.

Temperatures are on the high side both day and night.

That is, the temperature during the day is higher than 29, and the temperature at night is higher than 20, which will accelerate the metabolism of the plant, resulting in excessive loss of nutrients, and it is easy to make the flower buds yellow, and serious ones will fall.

The medium is too wet. If the medium is too wet during the flowering period, it will greatly reduce the oxygen content inside the root system, which will adversely affect the normal development of flower buds.

The relative humidity of the air is too low.

The humidity of the air does not meet the conditions required for the normal growth of phalaenopsis, which will cause the pollen grains in the flowers to fall off.

Mechanical damage. When pruning phalaenopsis orchids, if the inside of the peduncle is accidentally traumatized, it will affect the normal nutrient level**. or if the root system is accidentally broken during potting, the normal nutrient supply of the plant will also be affected.

Use of hormonal drugs.

If hormones such as flower buds and mequat are sprayed during the flowering and seedling raising periods of phalaenopsis, it is also easy to cause the plant to fall off buds.

Why are the old Phalaenopsis leaves easy to turn yellow and fall off in autumn? After reading it, I understand.

1. Winter is the flowering period of Phalaenopsis orchid, and the light in winter is relatively weak, so proper light can promote flowering and normal growth. However, if the Phalaenopsis is exposed to the sun for too long or too much sunlight in winter, it will cause the Phalaenopsis to turn yellow.

2. Phalaenopsis likes a humid environment, the air humidity during budding in winter should be kept above 70%, and the air humidity during flowering should be kept above 50%.

3. Watering too frequently, the root system is in a humid environment for a long time, and the rotten roots lead to poor nutrition and yellowing of flower bones.

The requirements for water quality are very important, especially the total hardness and iron content of the water, the total hardness is less than 50mg l, and the iron content is lower. Tap water can be left for 1 2 days before use.

When watering, pay attention to the alternation of dry and wet, and then water the plants when they are dry, and do not keep them moist. The water temperature is consistent with the temperature of the seedling growth environment, the earlier the morning in summer, the better, and the best in winter after 10 am.

Check the dryness and wetness of the orchid plant before and after watering and during watering. After normal watering, there are still some orchid plants that are dry and lack of water, and when the leaves are soft and drooping, we must try to increase the air humidity, and we must not irrigate them violently every day.

x0d x0a Second, the new leaves of Phalaenopsis grow thick and shiny, but the leaf surface is uneven, and the old leaves are yellowing and falling off. This condition is caused by excessive fertilization. Fertilizer should be stopped immediately, watered more appropriately, sprinkled some radish or cabbage seeds into the pot, and pulled out after a few days of emergence to consume the excess fertilizer in the pot.

Winter is not suitable for sowing seeds, you can transplant a few small plants, and then move out to plant again. x0d x0a Third, the top of the Phalaenopsis orchid and the new leaves are normal, but the lower leaves of the plant are first dried and yellow. The reason is that the phalaenopsis is dehydrated due to the lack of water for a long time.

It should be watered in moderation to keep the potting soil moist from top to bottom.

Phalaenopsis flower bones should be moved to a cool environment after turning yellow, cut off the yellowed flower bones with scissors, and then spray water mist on the leaves with a watering can to make Phalaenopsis absorb more water, and apply phosphorus and potassium fertilizers to Phalaenopsis orchids, not nitrogen fertilizers, to avoid wilting and wilting plants.

1. Block strong light

Phalaenopsis flowers should be transferred to the shade of a tree after turning yellow, or in a cool room, Phalaenopsis is afraid of strong light, suitable for growing in a astigmatism environment, if the light is too strong, it will burn the petals, causing the phalaenopsis bones to wither and fall.

2. Water diligently

Phalaenopsis flowers need to be replenished with water after the bones turn yellow, you can spray water mist on the plants, water every 3-5 days to keep the soil moist, so that the phalaenopsis absorbs more water, but can not water on the stamens to avoid the phalaenopsis stamens from rotting and falling.

3. Scientific fertilization

The yellowing of the bones of the phalaenopsis may be due to malnutrition, so it is necessary to apply compound fertilizer containing phosphorus and potassium, or apply well-rotted organic fertilizer, but not nitrogen fertilizer, to prevent the disease of phalaenopsis.

4. Ventilation

In the process of maintaining phalaenopsis, it should be placed in a well-ventilated environment, so that the plant can breathe, so that it grows normally, if it is placed in a closed environment for a long time, phalaenopsis will breed bacteria, disease, causing the flower bones to turn yellow and fall.

After the flower bones turn yellow, they should be moved to a careful and cool environment, cut off the yellow flower bones with scissors, and then spray water mist on the leaves with a watering can to make the phalaenopsis absorb more water, and apply phosphorus and potassium fertilizers to the phalaenopsis, not nitrogen fertilizers, to avoid the plants wilting and wilting.

Phalaenopsis is born in tropical rainforest areas and prefers high temperatures, high humidity, and ventilated environments; Not resistant to waterlogging, resistant to semi-shady environment, avoid direct sunlight, avoid stagnant water, afraid of cold, the growth temperature is 15 20, the growth will stop growing below 10 in winter, and it is easy to die if it is less than 5. The forests and trees along the coast of rivers with high temperature and humidity are the places where phalaenopsis grows.

The inflorescence is tolerant to collapse at the base of the stem, up to 50 cm long, unbranched or sometimes branched; inflorescence stalk green, sheathed with several scales; The inflorescence axis is purple-green, more or less folded, often with several flowers that open one by one from the base to the apex; bracts ovate-triangular; The peduncle together with the ovary is green, slender, white, beautiful, with a long flowering period, and the flowering period is round in April and June.

Common varieties of Phalaenopsis:

1) Phalaenopsis small-flowered, with slightly smaller flowers.

2) Taiwanese Phalaenopsis orchid, with large, flattened, hypertrophied, green, and markinged leaves.

3) Spotted Phalaenopsis, also known as Schiller Phalaenopsis, with large, oblong, 8-9 cm in diameter, lilac with white margins.

4) Mansoni Phalaenopsis orchid, leaves 30 cm long, green, yellow at the base of the leaves, sepals and petals orange-red.