What if the leaves of Anthurium andraeanum turn yellow? how to save it?

What about the yellowing of Anthurium andraeanum leaves? 1. The reason for cutting off the yellow leaves of Anthurium andraeanum

The new leaves of Anthurium andraeanum will appear yellow.

Symptom

Anthurium andraeanum occasionally has yellow leaves, other leaves are fresh and tender yellowish green, and the flowers grow well.

Salvage method

Just cut off the withered and yellow leaves to ensure routine maintenance.

2. The cause of excessive dryness and increased humidity

Insufficient humidity in the air and excessive dryness in the room will make Anthurium appear leaf yellow phenomenon.

Symptom

The leaf tip of Anthurium andraeanum is dry and yellow, or the leaf edge is scorched, or the leaf has scorched spot, edge curl and so on.

Salvage method

According to the growth characteristics of Anthurium andraeanum, properly increase the air humidity and spray the leaves and surrounding environment of Anthurium andraeanum for a long time. Keep the plant away from the air outlet of heating and air conditioning as far as possible in winter.

3. Reasons for controlling the amount of irrigation.

The soil of the basin soil has been too wet for a long time, and there is even stagnant water, causing some fibrous roots to rot.

Symptom

The new leaves turn yellow and the old ones are normal.

Salvage method

Drain the stagnant water from the Anthurium andraeanum pot in time. If the plant is in an environment where the soil is too wet for a long time, the plant can be removed from the basin and the soil can be dried and replanted. After normal watering, the leaves will gradually return to green.

4. less light, increase the reason of light.

Long-term indoors, lack of sunshine.

Symptom

The old leaves and the new leaves turn yellow.

Salvage method

Increase the light step by step.

5. Reasons for changing soil media.

There is more salt and alkali in the soil.

Symptom

The leaves will gradually turn green and yellow.

Salvage method

Buy professional acidic soil, or add oxalic acid to the original soil, change its acidity and basicity, pour some acidic water every week, dilute it with lemon water or edible vinegar and then irrigate it.

6. Reasons for keeping the temperature stable

It is usually winter to move the plant indoors near the doors and windows, between the doors, suddenly hot and cold, causing the leaves to turn yellow.

Symptom

If the indoor temperature is too low in winter, the leaves will turn yellow; if the room temperature is too high, the plant transpiration is too high, and the root water and nutrients are insufficient, the leaves will turn yellow.

Salvage method

To ensure that the indoor temperature is relatively stable and avoid indoor temperature imbalance.

7. Rational fertilization a, appropriate supplement of nitrogen fertilizer

Symptom 1: the basic leaves are aging and falling off, the plants are uniform light green to yellowish green, and the leaves become smaller.

B, appropriate supplement of phosphate fertilizer

Symptom 2: the leaf margin of the old leaf at the base is yellow, the petiole is purplish red, the leaf is hard and smaller, and the plant is short.

C. Supplement potash fertilizer appropriately.

Symptom 3: yellow between the veins of the old leaves at the base, while the young leaves of the plant are small and the leaves are light green or red.

D, appropriate amount of calcium fertilizer supplement

Symptom 4: the tip of the tender leaf turns yellow and hooks, and then dies inward from the leaf tip and leaf edge, and in severe cases, the stem top fester and necrosis.

E, appropriate amount of magnesium fertilizer

Symptom 5: the old leaves turn yellow along the veins, and the veins remain green.

F, appropriate amount of sulfur fertilizer supplement

Symptom 6: the veins of the apical tender leaves are yellowish green and the leaves are red or purple.

G, supplement appropriate amount of iron fertilizer

Symptom 7: the old leaves are green, the new leaves turn yellow, but the veins remain green, and the leaves become more and more yellow.

Stop fertilizing and increase watering

Symptoms: excessive fertilization showed dry tip and scorched yellow shedding of old leaves, and thick and uneven new leaves.

8. Prevention and control of anthrax

Symptoms: the veins of the leaves form large disease spots with brownish-yellow edges, and the disease finally dries up.

Rescue methods: chemical control and strengthen cultivation management, should be often ventilated and transparent, avoid watering or air-conditioning condensate splashing on the leaves, and remove the diseased leaves in time.

Bacterial wilt

Symptoms: there is a yellow edge outside the leaf, and the disease spot is green around it. The old leaves turn yellow, the petiole breaks, and the vascular bundles turn yellow.

Rescue methods: spray agricultural streptomycin or neophytomycin at the initial stage of the disease, strengthen cultivation management, remove the remains of diseased plants in time, and burn them.

How to deal with the rotten leaves of Anthurium andraeanum in different situations

What about the rotten leaves of Anthurium andraeanum? The so-called rotten leaves of Anthurium andraeanum generally refer to the leaves of Anthurium andraeanum yellowing and withering, causing the leaves to fall. There are many reasons for this situation, and in order to deal with this situation well, we need to take corresponding measures according to different situations. This paper intends to make a brief introduction to this.

Anthurium andraeanum has peculiar flower shape, gorgeous color and beautiful leaves, which can watch both flowers and leaves. Therefore, the leaves turn yellow and wither, which directly affects their ornamental value. And lead to Anthurium andraeanum leaves yellow and withered, may be due to the following reasons.

I. bacterial leaf spot

At the initial stage of infection, waterlogged irregular brown to dark brown spots appeared between the veins, surrounded by yellow halos, and in severe cases, the disease spots fused into large spots, wilting and curling hanging on the short stem. Examination of dead and decaying tissue, if emitting an unpleasant fishy smell, accompanied by yellow bacterial pus, can be sure to be caused by bacterial damage.

Prevention and treatment: 72% of agricultural streptomycin sulfate soluble powder 4000 times or medical streptomycin sulfate 3000 times solution was used at the initial stage of the disease, and the plants were sprayed every 7 to 10 days.

2. Fungal black spot

Often cause leaf tissue necrosis, wilting, decay and other symptoms, with the naked eye can be observed pathogens or their abnormal forms, such as small black spots, black mold, etc., generally slow development, mostly manifested as wet rot, no fishy smell.

Prevention and treatment: at the initial stage of the disease, 40% of ethyl aluminum and prohydantoin wettable powder can be sprayed 400 times, or 45% of Dysen ammonium 800 times, or 75% of 100. The germicidal efficacy of 1000 times liquid spray of bacteriophage wettable powder is good.

Third, old leaves and new leaves turn yellow at the same time

The main reason is the long-term lack of light.

Solution: increase the light appropriately.

Fourth, the old leaves turn yellow

The main reason is that there is a long-term lack of water or that the water is not watered thoroughly.

Solution: water thoroughly every time.

5. the new leaves are yellow and the old leaves are normal.

This is due to too much watering or lack of fertilizer.

Solution: control watering, or topdressing.

It can be seen that the reasons for rotten leaves of Anthurium andraeanum are various, and if it is treated without distinction, it may be counterproductive, unable to save the life of Anthurium andraeanum, but accelerate its decay.

How to raise Anthurium andraeanum? The flowers are so beautiful and the leaves are bright!

How does Anthurium andraeanum spend in many colors?

Generally speaking, if the temperature is too low or the sun is not enough, Anthurium andraeanum is not easy to bloom, or even if it is blooming, it is not bright. Other factors, such as too little moisture and lack of fertilizer, can also lead to less flowering of Anthurium andraeanum. Therefore, if you want the Anthurium andraeanum flowers to bloom more beautifully, you must do the following:

Scattered light

Anthurium likes the sun, but it is not suitable for direct sunlight, because the leaves will be burned. Therefore, it is best to put Anthurium andraeanum in the bright astigmatism link to avoid sun exposure and not be too cool. If there is enough scattered sunlight, the flowers will bloom more brightly.

Keep it moist

Anthurium likes moist, basin soil surface dry can be watered, about 2-3 days watering, Anthurium also has certain requirements for air humidity, usually should also pay attention to spray water around the leaves. This ensures that the flowers are bright and full. If the temperature is too low and the growth of Anthurium andraeanum is relatively slow, it is necessary to control watering to avoid rotting roots.

Thin fertilizer is applied frequently

Anthurium andraeanum is fond of fertilizer, fertilizing every two weeks, which can be carried out at the same time as watering, and applying phosphorus and potassium fertilizer before flowering. The best time to fertilize is

Morning or evening. Fertilize once a month in winter.

In addition, Anthurium andraeanum should also apply some water and fertilizer, drop one or two drops when watering, once every 3-5 days, and once every half a month in winter.

Do not use foliar fertilizer on Anthurium andraeanum, because it has a layer of wax on its surface, which will hinder absorption.

Acid soil

The soil of Anthurium andraeanum had better be acidic, fertile and well drained. You can spread some coarse sand, ceramsite or peanut shell at the bottom of the basin. In addition, soil consolidation will hinder root respiration and nutrient transport, but also affect the quality of flowering, usually pay attention to loosen the soil, and change the basin in time when necessary.

Retain air root

Some of the roots of Anthurium andraeanum will be exposed to the soil surface, and many flower lovers are afraid of being bad for the flowers, so they quickly bury them back. Do not do this, these exposed roots are called air roots, in order to better absorb nutrients and respiration, burying is equivalent to hindering his breathing, but also lead to poor flowering.

What if the leaves of Anthurium andraeanum turn yellow?

There are many factors that cause the yellow leaves of Anthurium andraeanum, such as light, temperature, ventilation, watering, fertilization and so on. So when we encounter the symptoms of yellow leaves, we must distinguish them carefully and prescribe the right medicine to the case.

Improper lighting

Sometimes the edges of Anthurium andraeanum leaves will be dry, yellow, with similar burn marks. This situation is not necessarily caused by sunlight exposure, but also caused by long-term uneven light, even in astigmatism, the side that is exposed to long-term light will be burned.

So the Anthurium andraeanum raised indoors should often turn the flowerpot to avoid burns on one side and ensure the graceful plant shape on the other hand.

Temperature discomfort

Anthurium likes a milder environment. If the leaves of Anthurium andraeanum are all dark yellow and have no luster, they may even fall off seriously, which is caused by too high or too low temperature.

When it is above 35 ℃ in summer or less than 10 ℃ in winter, Anthurium andraeanum should be kept indoors for maintenance. To maintain its stable growth environment.

Stagnant water and rotten roots

Stagnant water and rotten roots will lead to yellowing or even local blackening of leaves and malaise of plants.

We should stop watering, move Anthurium andraeanum to a ventilated place, loosen the soil, and wait for the water in the basin to evaporate. Wait for Anthurium andraeanum to come back to life before normal maintenance. If the situation is serious, it is necessary to trim the root and change the basin.

Poor ventilation

When the indoor ventilation is not good, yellow-brown spots will appear on the Anthurium andraeanum leaves.

This condition requires timely cutting off the yellow leaves, otherwise other healthy leaves will also be infected and yellowed. The next step is to increase ventilation. At ordinary times, we should pay attention to open more windows to ensure air exchange with the outside world.

Lack of fat

If the Anthurium andraeanum leaves start yellowing from the edge, accompanied by yellow spots and easy to fall off. This is caused by the lack of phosphorus and nitrogen fertilizer. You can apply crushed eggshells and rotten rice panning water.

Diseases and insect pests

In fact, many diseases are caused by improper water and fertilizer and inadequate ventilation. In general, as long as we maintain correctly, we can avoid diseases and insect pests. But if it happens, how can we save it?

▷ disease:

There are two most common diseases of Anthurium andraeanum: leaf spot and anthracnose. It can be sprayed with chlorothalonil solution or soaked in the basin, and it can be eliminated quickly.

▷ pests:

If it is nematodes, scale insects, you can use spectral insecticides or pyrethroids, which is very effective.

If it is a red spider, you can spray some flower protection god or mite net.

If the situation is not serious, you can spray detergent water directly.