What to do if the white orchid always drops leaves, what to do if the leaves of the white orchid tur

When white orchids lose leaves, the first thing to consider is whether they have been watered too much, which has caused damage to the root system, so it has led to leaf loss.

The cultivation method of white orchids.

Soil. For home potted white orchids, they should be cultivated in loose, breathable and humus-rich soil. Usually choose tile basins with good air permeability, purple sand basins (cylinders) or plastic basins with more bottom holes.

It is best to have a certain amount of granular soil of different sizes in the pot to facilitate water permeability and air permeability.

Repotting. According to the size of the crown of the white orchid and the length of the age of the tree, replace the pots and jars of appropriate size to facilitate the vigorous growth of the plants. When operating, you should wait for the potting soil to dry slightly, slowly tilt the pot (tank) (or turn it upside down), hold the pot with one hand, grasp the plant with the other, and pour out the white orchid and move it into the new pot.

A small amount of loose soil should be padded in the new pot (tank) in advance, and then watered thoroughly and planted stably.

Illumination. From March to April every year, the pots and jars with white orchids should be removed from the outdoors and placed in a sunny place. When the temperature is high in summer, you should choose a shade net or build a simple shade canopy as appropriate, so that the white orchids can not only shine on the morning sun, but also avoid the strong light in the summer afternoon (so as not to burn the branches and leaves due to the sun).

Move to the outdoors before and after the beginning of summer, and place it in a sunny and ventilated place, and the sunshine needs to be more than 6 hours. Only with enough light can it grow well, and if there is not enough light, it will grow branches and leaves, and there will be little or no flowering. In the hot season of midsummer, the intensity of sunlight should be slightly shaded to avoid burning the leaves and young stems in the scorching sun.

Fertilize. In the vigorous growth period of white orchid flowers (usually May, June or July and August every year), the white orchid should be applied with flower fertilizer every half a month or so, or a little nitrogen, phosphorus and potassium compound fertilizer should be applied at intervals of about 20 years, 2 grams to 6 grams each time.

The specific operation is: first use a small shovel to draw several longitudinal and horizontal ditches for the soil in the pot, and then slowly sprinkle the fertilizer into the ditch, and then cover it with the topsoil in the pot, and pour some water. Make the fertilizer gradually penetrate into the roots of the plant with each watering, and do not sprinkle the fertilizer directly to the roots, so as not to cause "root burning" due to the excessive fertilizer effect of the soil around the roots.

Thin fertilizer is applied frequently, cake fertilizer is good, no fertilizer in winter, after the sprouts are pumped to June, water 1 fertilizer every 3-4 days, water 1 fertilizer every 5-6 days from July to September, and stop applying fertilizer after several times.

From the beginning of the move room to the end of June, water alum fertilizer every 7-10 days to make the soil slightly acidic. During the flowering period, you can also increase the application of water-soluble fertilizer for fertile leaves, so as to make it fragrant.

"Summer and autumn" is the growing period of white orchids, when leaf shedding becomes the main reason for the bare rod:

Just after potting, due to poor soil quality or strong sun, resulting in a large number of fallen leaves.

In daily management, potting soil is often too dry or too wet, which can also cause large leaf litter.

During the growing season, keep it indoors for a long time. Rescue measures: If there is a large number of fallen leaves, as long as the stems are still green and the top young leaves are still there, they can be placed in an outdoor shade to keep the potting soil moist, not dry or watered, and stop fertilizing, do not turn over the pot for the time being, and let it slowly recover its vitality.

It is more difficult for white orchids to "survive the winter", and if they are watered too much, they will fall leaves and not ventilate, which will also cause them to fall leaves.

If the indoor temperature is too low, you can consider putting a plastic bag, and you should go out of the house to dry out on a sunny day.

1. Too much water: too much or too little watering of the white orchid potting soil, sometimes dry and sometimes wet, etc., the fleshy root system can not stand it, which will cause the leaves to turn yellow.

Treatment method: watering should be appropriate, after the potting soil is dry, the amount of water should not be too much when watering at one time, and it should not be in a state of drought without watering for a long time.

2. Insufficient light: white orchids like the sun, if there is too little sunlight, it will also cause poor plant growth and yellowing of leaves.

Treatment: White orchids are suitable for planting in courtyards or balconies, window sills and other places, and need sufficient sunlight, but can not be exposed to the sun, and the sun is fierce in summer.

3. The temperature is too high: the yellowing of the leaves of the white orchid has a lot to do with the temperature, and the leaves will also turn yellow when the temperature is too high and stuffy.

Treatment: The temperature should be kept stable, not too high or too low, between 5-10 is the most suitable, the temperature rises, the environment is stuffy and ventilated, and strengthen humidity management.

Fourth, iron deficiency yellowing disease: mainly potting soil is alkaline.

The reasons for the alkaline potting soil: first, the potting soil itself is alkaline; The second is to use more alkaline inorganic fertilizer or water, so the leaves gradually turn from green to yellow-white, and in severe cases, the leaves are brown, forming local necrosis.

Treatment method: white orchid potting soil to choose slightly acidic soil, can not use more alkaline inorganic fertilizer or water, yellowing disease should be timely with ferrous sulfate foliar spray, once a week, continuous spraying 3-4 times, or with trim amino acid foliar fertilizer spraying once a week, continuous spraying, control the disease.

5. Insufficient fertilization: long-term defertilization, or not changing pots and soil for a long time, lack of nutrients such as nitrogen in the soil, resulting in thin branches and leaves, thin and yellow leaves. In addition, excessive fertilization will also cause new leaves to be hypertrophied, uneven, and the old leaves will be dry and yellow.

Treatment method: In case of this phenomenon, the fertilization should be stopped immediately, the amount of watering should be increased, and part of the old soil should be removed, and the new culture soil should be replaced for normal management.

6. Root rot: Excessive watering and failure to pour out the water in the pot in time during continuous rain will lead to black rot of the root system, yellowing and even falling off of the leaves, resulting in the death of the whole plant.

Treatment: Therefore, it is usually necessary to wait until the surface of the potting soil is whitish before watering, and loosen the soil frequently. When the rainy season is too bad or there is too much rain, it is advisable to move under the eaves or indoors to take shelter from the rain; When potting, more broken tiles should be added to the bottom of the pot to make the drainage smooth, and the pot should be put up with bricks to speed up the speed of water flow.

If the leaves of white orchids turn yellow and fall, it has a certain relationship with the environmental soil, and it is also possible that pests and diseases have occurred. The following methods can be taken:

Clause. 1. Environment 1. Good ventilation is required, otherwise it is easy to cause red spider damage, and the leaves of the affected plants will turn yellow and fall off. 2. In addition to spraying pesticides and killing insects, the pot should be moved to a cool place, watered sparingly, and new leaves can be reborn soon. Clause.

2. Soil 1. If the soil is alkaline, or the irrigation water is also alkaline, it is easy to cause yellowing of the leaves of the white orchid and the yellowing of the root system to turn black and rot. 2. Spray the foliar surface with the available ferrous sulfate aqueous solution, every 5-7 days. It can also be often applied with about ferrous sulfate aqueous solution to prevent and control.

Clause. 3. Pests and diseases 1, red spiders and scale insects will make the leaves of white orchids yellow, and suck the sap, causing the plant to die, and its secretions will induce soot disease. 2. Once the scale insect is found, it can be scraped off with bamboo chips. 3. Spider mites can be sprayed with 1000 times 20 triclofena, or 50 times of 50 thiophos.

1. Yellowing: If you want to prevent the problem of white orchids falling leaves, you must first understand the causes. In fact, it is not difficult to find that this situation must be a problem in plant management, and one of the main reasons is that the leaves may be infected with yellowing.

The symptoms show that the newly extracted shoots at the top of the branches lose their green color, and then gradually show a top-down trend, slowly extending to the bottom. If there are no timely measures to treat it, it will cause the leaf veins to turn yellow, zoom, and finally fall.

2. In this case, you can appropriately supplement some ferrous sulfate to the plant, which can be applied to the soil, or you can bury a small ferrous sulfate particle in the cortex below the plant, and then wrap it with plastic film, and you can also sprinkle it with water in the form of spray to the diseased leaves, and you can repeat the operation for several cycles.

3. Anthranose: The biggest harm of anthracnose is to attack the leaves of the white orchid, the initial stage is mainly to show that the surface of the leaf is a small point of fading at the beginning, and then gradually expands, and later develops into the size of half or even the entire leaf, the edge is scorched, the leaf edge is black, and then it aggravates the fall. The best way to improve the situation is to use the anthrax formimate drug and spray it on the patient in proportion.

Hello such as disturbing or, let you wait for a long time, for you to find out, white orchid leaves yellowing and leaf loss you should first check the roots: check whether there are pests and diseases in the roots, if there are, you can use pyrethrum, insecticide chrysanthemum and other drugs to treat. 2.

Check the fertilizer: White orchids need to be fertilized regularly, if there is no fertilizer, the leaves will turn yellow and lose their leaves, you can use organic fertilizer or nitrogen, phosphorus and potassium fertilizer to fertilize. 4.

Check for germs: If there is a germ infection on the leaves, you can treat it with an antimicrobial agent to save the white orchid.

1. The white orchid may fall its leaves because the frequency of watering is too high when raising it, which causes it to be waterlogged. At this point, it should be depotted, the rotten roots should be removed, and it should be replanted with new soil that is not prone to water accumulation.

2. It may also be because the temperature of the place where it is raised is too low, so that it is frozen. At this point, it needs to be relocated to an environment of 8 or more, maintained, and restored.

Hello, the leaves of the white orchid fall off as soon as you touch it, and most of the time it is the natural physiological reaction of the white orchid. For example, it is more common when Zheng Sen is blind when it has just been potted, has just been transplanted, dormant period, and spring germination stage. If the leaf fall is caused by problems such as improper watering, irregular temperature, light, fertilizer, etc., it should be alleviated according to the specific situation.