What causes papaya tree leaves to turn yellow?

Hello, the yellowing of the leaves of the papaya tree may be due to insect infestation or overwatering.

1. Mosaic disease makes the leaves yellow.

At the beginning of the disease, the yellow return of the heart leaf shrinks, and the back of the leaf is soaked or punctate. After the onset of the disease, the leaf margins dry up, the leaves fall off, and only a bunch of new leaves are left at the top.

2. Spider mite damage makes the leaves yellow.

After the infestation occurs, the leaf surface is rough and irregular. The leaves gradually turn yellow, the young leaves become brittle, and the number of side buds increases compared to normal trees.

3. Scale insects cause yellowing of leaves.

After the occurrence of insect infestation, the leaves turn yellow, the branches wither, and the fruit trees grow poorly.

4. Overwatering makes the leaves yellow.

Papaya tree leaves turn yellow solution:

Distinguish the cause of yellowing, and if it is too much watering, you should pay less water. If there is a lack of nutrients, fertilize it.

If it is mosaic disease, you can spray an appropriate amount of phytoling, virus and other agents.

If it is a red spider infestation, you can use non-toxic and non-dry sticky shellac to apply a circle in the trunk, the ring width is about 1cm, and it can be applied again in about 60 days, which can effectively prevent the spread of red spider. It can be sprayed with agents such as mitete or dicofol for control, sprayed once in about 12 days, and sprayed 2 or 3 times in a row.

If it is a scale insect damage, immediately use 40% dimethoate oxide 1000 times liquid or deltamethrin 3000 times liquid or 50% malathion 1500 times liquid spray control, spray once every 8 days, spray 2 times or 3 times in a row.

The reason why papaya leaves turn yellow is either a lack of fertilizer, or when the leaves are changed in winter, the yellow leaves will fall off and new leaves will come out.

The leaves are infected with mosaic disease, which causes the leaves to shrivel and turn yellow, so it is necessary to fertilize and hoe the soil in time, water, and cut off the yellowed leaves in time.

The control methods of yellow leaves of papaya trees include spraying ferrous sulfate and doing a good job in maintenance and management.

For example, 3-4 consecutive sprays of ferrous sulphate solution or multifunctional foliar fertilizer containing iron during the growth period. Receive a little more sunlight every day, carry out regular fertilizer and water measures to avoid stagnant water and fertilizer damage, and prune branches and leaves regularly during the growing season.

1. Spray ferrous sulfate.

1.Most of the yellow leaves of papaya trees are caused by iron deficiency, and after the onset of the disease, they will start from the young leaves on the new shoots, and the leaves are yellow and green. Therefore, in order to restore the greenness of the leaves of papaya trees, an appropriate amount of ferrous sulfate is sprayed to supplement iron, which can effectively avoid yellowing, falling off and wilting of the leaves.

2.During the growth period of papaya tree shoots, you can spray ferrous sulfate solution or multifunctional foliar fertilizer containing iron 3-4 times in a row. In addition, in the process of iron supplementation, it is necessary to supplement fertile leaf boron fertilizer, which can effectively reduce and prevent the occurrence of yellow leaf disease.

2. Precautions.

When spraying, pay attention to the proportion of ferrous sulfate and water blended well, in the watering can be directly poured on the root soil layer of fruit trees, conducive to the full absorption and growth of the root system. Be careful not to spray directly in potting soil.

3. Maintenance management.

In order to prevent the occurrence of yellow leaves of papaya trees, it is necessary to do a good job in maintenance and management. Receiving a little more sunlight every day is conducive to the growth of branches and leaves. Carry out regular fertilizer and water measures to avoid stagnant water and fertilizer damage. During the growing season, prune the branches and leaves regularly to maintain the permeability and light transmission of the plants.

Hello, the yellowing of the leaves of the papaya tree may be due to insect infestation or overwatering.

1. Mosaic disease makes the leaves yellow.

At the beginning of the disease, the yellowing of the heart leaves shrinks, and water-soaked or punctate lesions appear on the back of the leaves. After the onset of the disease, the leaf margins dry up, the leaves fall off, and only a bunch of new leaves are left at the top.

2. Spider mite damage makes the leaves yellow.

After the infestation occurs, the leaf surface is rough and irregular. The leaves gradually turn yellow, the young leaves become brittle, and the number of side buds increases compared to normal trees.

3. Scale insects cause yellowing of leaves.

After the occurrence of insect infestation, the leaves turn yellow, the branches wither, and the fruit trees grow poorly.

4. Overwatering makes the leaves yellow.

There are several reasons for leaf yellow, first, excessive watering, second, lack of nutrients, and third, natural physiology. Solution: Supplement fertilizer and use special compound fertilizer for flowers and fruits.

Top dressing once a week and return water the next day. This can improve plant absorption and prevent excessive concentration from causing damage to plants. In the future, you should pay attention to watering, do not dry and do not water, and watering should be watered thoroughly.

If your papaya tree has yellow leaves, in this case, there is no way, because the papaya itself is in the process of flowering and fruiting, and it has a huge impact on the tree, so you should use these chemicals.

The yellow leaves of papaya trees are generally infected, so it is necessary to inspect the plants in time, cut down the diseased plants in time, and disinfect the papaya trees with the general methods of protecting the trees. After the yellow leaf treatment, the management of papaya trees can be strengthened, and the autumn planting can be changed to spring planting to achieve the purpose of early effect, and insecticides are also sprayed to control the pests.

Papaya yellow leaf processing method.

1.Cut down diseased plants.

Papaya trees are more resistant during the vegetative growth period, but during the flowering and fruiting period, the resistance will weaken, and diseased plants will easily appear, making the leaves yellow, so once the diseased plants are found, the diseased plants must be cut off in time, and the papaya trees must be disinfected regularly using the general methods of protecting trees.

2.Strengthen management.

After dealing with the diseased plants and yellow leaves, it is necessary to strengthen the maintenance and management of papaya trees, and change the autumn planting to spring planting, and properly dense planting and basal fertilizer application to promote their growth, so as to harvest a certain number of fruits before the peak of the disease.

3.Pest and disease control.

After the papaya leaves turn yellow, in addition to timely treatment, there should be a sense of prevention. The peak period of papaya tree occurrence and yellowing is from March to June and September to November each year. During this period, management should be strengthened, insecticides should be sprayed frequently, and pests should be removed in time after detection to reduce the number of infection vectors.

It can also be topped with water-soluble fertilizer to increase disease resistance.

The leaves of the papaya tree can be caused by insect infestation or excessive moisture.

Infected with diseases, papaya yellow leaves may be infected with mosaic disease, need to prune off the diseased leaves, and spray phytophytosis for **; Infected with insect pests, after being attacked by red spiders and scale insects, papaya will also appear yellow leaves. Lack of iron, which can also lead to papaya yellow leaves, can be alleviated by applying ferrous sulfate solution.

In the early stage of the disease, the leaves will be yellowed, the back of the leaves will appear water-soaked or punctate, and the edges of the leaves will gradually dry up and yellow and fall off. After finding that the papaya leaves are infected, it is necessary to prune off the diseased leaves in time, destroy them in a centralized manner, and then spray the leaves with phytophytochemicals.

In the process of daily cultivation of papaya trees, if they are attacked by aphids, red spiders, and scale insects, the leaves will also turn yellow. If it is infested by red spiders, you can spray the mites for **, and after spraying 2 or 3 times in a row, you can kill the insect pest. If infected with scale insects, spray 1000 times of 40% dimethoate emulsion for spraying**.

The yellowing of papaya leaves may also be caused by a lack of iron, if there is a long-term lack of iron, it will cause the young leaves on the papaya tree to begin to yellow leaves, but the leaf veins have always maintained a green growth state, and the leaves will appear yellow for a long time. Therefore, during the growth period of papaya tree shoots, ferrous sulfate solution can be sprayed 3 or 4 times in a row to alleviate it.

Papaya trees are poorly waterlogged, and if the soil contains too much water and insufficient oxygen, the roots will not be able to breathe properly and the leaves will turn yellow. Drains can be dug outside the canopy of papaya trees, and the surrounding soil can be loosened so that the water can evaporate as soon as possible, and high-potassium foliar fertilizer can be sprayed on the canopy to improve the plant's resistance to stress.

Summary. Hello dear, the reasons for the wilting and falling off of papaya leaves are as follows: 1. Improper watering.

Papaya trees wilt and are most likely caused by improper watering. When watering, if the papaya tree is watered too much, it will cause water accumulation in the roots, and the roots will be suffocated and the plant will wither, and if the water is too little, the plant will also die due to lack of water. 2. Improper light temperature.

Papaya trees prefer sunlight and warm environments, and if they are exposed to sunlight for too long, it may cause wilting. At the same time, if the temperature of the surrounding environment is too low, the papaya tree will be damaged by frost, and the branches and leaves will turn yellow and wither, and in severe cases, it will wither.

Hello dear, the reasons for the wilting and falling off of papaya leaves are as follows: 1. Improper watering. Papaya trees wilt and are most likely caused by improper watering.

When watering, if the papaya tree is watered too much, it will cause water accumulation in the roots, and the roots will be suffocated and the plant will wither, and if the water is too little, the plant will also die due to lack of water. 2. Improper light temperature. Papaya trees like sunlight and warm environments, and if the papaya trees are exposed to the sun for too long, they may be disturbed and cause wilting.

At the same time, if the temperature of the surrounding environment of Hongcha fruit is too low, it will cause the papaya tree to be frost damaged, and the branches and leaves will turn yellow and withered, and in severe cases, it will wither.

The efficacy and function of papaya: 1. Beauty and beauty: Papaya is rich in papaya enzyme, vitamin C, vitamin B, calcium, phosphorus and other minerals, and also rich in carotene, protein, calcium, citric acid, which can promote spleen and stomach digestion, improve constipation, and promote the metabolism of the human body, so as to achieve the effect of beauty and skin care.

2. Lactation: Papaya contains amino acids, papain, rennet and other nutrients, among which rennet has a certain lactation effect. 3. Supplemental nutrition

Papaya contains a lot of water, carbon footprint, hydration, hydration, protein, fat, vitamins and a variety of essential amino acids, which can effectively supplement the nutrients of the human body.

Papaya yellow leaves are generally infected with diseases. At this time, the plants should be inspected, the diseased plants should be cut down in time, and the papaya trees should be detoxified, generally to protect the trees. After the treatment of yellow leaves and celery, the management of papaya trees should be strengthened, and the autumn sowing can be changed to spring sowing to achieve the purpose of early fruiting, and spraying insecticides to control pests.

Cut down diseased plants. Papaya trees are more resistant during the vegetative growth period, but their resistance weakens when they reach the flowering and fruiting stage. Therefore, when diseased plants are found, they should be cut down in time, and the papaya trees should be disinfected regularly with tree guards.

Strengthen management. After the treatment of diseased plants and yellow leaves, the maintenance and management of papaya trees should be strengthened. We can change autumn sowing to spring sowing, proper dense planting, plus sufficient basal fertilizer, to promote its growth, so that the fruit can be harvested in the same year, and a certain amount of fruit can be harvested before the peak of the disease.

Pest and disease control.

Papaya leaves are yellow, in addition to timely treatment, it is also necessary to have a sense of prevention. Every year in March 6 and 9 November is the peak season for papaya disease and yellow leaves. During this period, it is necessary to strengthen management, spray insecticides frequently, clean up pests and diseases in a timely manner, and reduce the source of infection.

The yellow leaves of the papaya tree are generally infected with diseases, so it is necessary to inspect the plants, cut down the diseased plants in time, and disinfect the papaya trees with the general tree guard. After the treatment of yellow leaves, the management of papaya trees should be strengthened, and autumn planting can be changed to spring planting to achieve the purpose of early fruiting, and insecticides need to be sprayed to prevent insect pests.

1. Cut down diseased plants

Papaya trees are more resistant during the vegetative growth period, but when they reach the flowering and fruiting stage, the resistance will weaken, and it is easy to have diseased plants and cause yellowing of leaves. Therefore, when diseased plants are found, it is necessary to cut down the diseased plants in time, and regularly use tree guards to disinfect papaya trees.

2. Dansheng strengthens management

After the diseased plants and yellow leaves are disposed of, it is necessary to strengthen the maintenance and management of papaya trees. We can change the autumn planting to spring planting, appropriate dense planting and apply sufficient basal fertilizer to enhance its growth, so that the fruit can be harvested in the same year of planting, so that a certain amount of fruit can be harvested before the peak of the disease.

3. Pest control

After the leaves of the papaya tree turn yellow, in addition to timely treatment, it is also necessary to have a sense of prevention. Every year from March to June and September to November is the peak period of papaya tree disease and leaf yellowing, during this time to strengthen management, frequent spraying of insecticides, find insect pests in time to clean up, reduce the number of infectious media.