What causes the watermelon to rot

Watermelon rot is really a very bad thing for growers, and once it is not controlled, it may cause very big losses to melon farmers. Therefore, in the process of planting watermelon, it is necessary to take proper care to prevent the occurrence of melon bursting, and attention should be paid to these aspects:

First of all, choose the place. Watermelon generally chooses slope land, sandy land, not too sticky soil, poor air permeability, which will hinder the development of the root system of watermelon, thereby affecting the growth of the later stage; To choose a location that is conducive to drainage, it is best to have slopes or high and low terraces, because watermelons need water, but they are more afraid of water, and excessive water absorption will cause melons to burst.

Second, seed selection. Watermelon seedlings are to be grafted, and better varieties should be selected to control the occurrence of melon explosion from the source. Fertilization should be appropriate, not excessive, to promote the watermelon to grow too fast, and the increase is also an important factor in rottenness.

Third, the medication should be strict. Some fruit farmers like to play cyclamate, reddening agent and other drugs that can increase the sweetness or red pigment of watermelon, once it is overdosed, causing the internal fiber of watermelon to be chaotic, and melon explosion will occur; There is also the use of fake drugs, will also be rotten, so buy drugs to go to a regular pesticide store, the drug should be used in strict accordance with the amount of instructions, regular medicine, do not abuse drugs. Self-preservation.

Fourth, weather reasons. Watermelons ripen in the summer, and the weather in summer is more abnormal, a rain and a sun. Under the exposure to high temperatures, the skin of the watermelon has been hot, and suddenly there is a cloud and rain, followed by the sun after the rain, which is equivalent to alternating between cold and heat, so rotten pockets will occur, and there are such news reports every year, melon farmers are suffering heavy losses.

This is an uncontrollable factor. It's southerners, take the south as an example, because we grow watermelons in the south, and they are mostly grown in the open air.

To sum up, the main reasons are proper care, pay close attention to the growth of watermelon, timely fertilization and medication, so that vines and melons can thrive, reduce the occurrence of rotten pockets in abnormal weather, and ensure income.

1. Plant growth regulators are sprayed unevenly.

Second, watermelons generally choose sloping land, sandy soil, do not be too sticky soil, air permeability is not good, which will hinder the development of watermelon roots, thereby affecting the growth of the later stage.

3. Encountering persistent cold air.

There are factors such as variety, fertilizer, soil and air humidity, light and temperature, plant growth regulators, and so on.

Variety, variety is the main factor that determines the characteristics of watermelon.

The phenomenon of watermelon rotten is commonly known as watermelon cracked melon, which may be due to too much nitrogen fertilizer, resulting in excessive expansion, followed by temperature, which is extremely fluctuating, which will also lead to rotten pockets.

Summary. The watermelon is rotten"This usually means that something has failed or expired. This metaphor is that watermelon is easy to become soft and unpalatable after being overripe.

The watermelon is rotten"This usually means that something has failed or expired. This metaphor is that watermelon is easy to become soft and unpalatable after being overripe.

So if something has been"The watermelon is rotten", meaning that it no longer has any value or effect.

Watermelons generally choose sloping land and sandy land instead of sticky clay soil, which has poor air permeability, which will hinder the development of watermelon roots and affect the later growth; To choose a location that is conducive to drainage, it is better to have a slope or high and low terraces, because the watermelon needs water, but it is more afraid of water. Excessive water absorption can lead to watermelon**.

Watermelon grafting and seedling, select excellent varieties, and control the occurrence of watermelon and hail from the source. Fertilization should be appropriate and not excessive, so as to promote the growth of watermelons too fast, and promoting inflation is also an important factor in bad pockets. Some fruit growers prefer to use cyclamate, reddeners, and other medications that increase the sweetness or red pigment of watermelon.

Once they play too much, it will cause the fiber in the watermelon to mess up, and the watermelon will explode; Also, if you use fake drugs, you will rot. Therefore, you should go to a regular pesticide store to buy medicine. You should take your medication exactly as prescribed.

Conventional drugs should not be abused. Self-improvement.

Watermelons ripen in the summer, and the weather in the summer is not normal, with rain and sun. Under the exposure to high temperatures, the watermelon rind becomes very hot. Suddenly, there are clouds and rain, followed by sun exposure after the rain, which is equivalent to alternating hot and cold, so rotten bags will occur.

Every year, there are such news reports, and melon farmers suffer a lot. This is an uncontrollable factor. It's a southerner.

Take the South as an example, because we grow watermelons in the open air in the South. Uneven spraying of plant growth regulators: After the farmer grows the watermelon, the watermelon grows normally until the early stage of fruit set.

The skin of young fruit deteriorates due to improper use of growth regulators or spraying of growth regulators on the skin of young fruits. However, the young fruit is in the stage of growth and development, and the daily growth rate is relatively fast, but the epidermis is aging and stiff, and finally, the aging part of the epidermis is compressed and cracked due to growth pressure.

When young fruits swell, they will encounter persistent cold air or persistent bad weather, which will lead to senescence of the skin of young fruits. This is also because the swelling force of the young fruit resists the hardness of the old skin, and the energy cannot be released, resulting in cracking of the melon skin. Some melon farmers use greenhouses for cultivation, which can be a big problem.

Ventilation due to the high temperature inside the greenhouse, the relatively low external temperature, and the large temperature difference between the inside and outside, resulting in the cold and hard skin of the young fruit, which eventually leads to the cracking of the fruit. The lack of moisture makes it difficult for watermelons to root downward. After deep rooting, a large amount of water absorption leads to excessive moisture and cracking of the melon.

Because of the sun, the young melon skin is sunburned and aged. Once the watermelon is wetted with water, it will swell, causing excessive pressure and cracking of the buried sail.

This is because there is too much water, and the sun is very poisonous, and there are germs, so the watermelon is messed up. The method of prevention and control is to drain and ventilate, reduce the temperature of the soil and ear soil, and spray pesticides.

It may be because of frequent watering, or the poor permeability of the soil, which leads to the disease of the roots of the fiber source watermelon. It can loosen the soil, or it can be used with drugs to carry out ** washing, and this situation can also be controlled.

Watermelon cracked melon is a physiological disease that occurs when melon farmers plant watermelons due to their own operation or the influence of weather conditions. This disease seriously damages the interests of melon farmers, greatly affects the yield of melons, once there is a cracked melon phenomenon, it means that the hard work of melon farmers is in vain, the whole watermelon has no yield, and it is difficult to find corresponding effective means to save this situation, resulting in direct economic losses for melon farmers.

Let's take a look at the cracking of watermelon, what is the reason for the cracking:

1. Plant growth regulators are sprayed unevenly. After the growers plant watermelons, the watermelons grow normally until the early stage of fruit hanging, due to the improper use of growth regulators or spraying growth regulators to the skin of young fruits, resulting in the aging of the skin of young fruits and the growth and development of young fruits, its daily growth rate is faster, but the skin is aging and stiff, and finally due to the growth pressure, the aging part of the epidermis is compressed, and cracking occurs.

Second, it encounters continuous cold air: During the swelling period of young fruits, they encounter continuous cold air or continuous bad weather, which causes the delicate skin of young fruits to become aging, and it is also because of the strength of young fruit expansion and the stiffness of the old skin, and the energy cannot be released, resulting in cracking of the melon skin.

Third, the temperature difference between the inside and outside of the greenhouse is largeDue to the high temperature in the greenhouse and the relatively low outside temperature, the temperature difference between the inside and outside will be too large, resulting in the cold hardening of the skin of the young fruit and eventually leading to fruit cracking.

Fourth, the surface water is insufficient: Insufficient water causes the watermelon to take root downward, and after taking root deeply, a large amount of water absorption leads to excessive water and cracked melon.

Fifth, the weather conditions are too sunny: Because the sun is too bright, the skin of the young melon is sunburned and aging. Once the watermelon is moistened by water resources, it swells, resulting in excessive pressure and cracking.

Cracked melon countermeasures:

Fruit farmers must pay attention to the reasonable watering of watermelon, must not produce flood irrigation, to prevent watermelon from absorbing too much water to produce cracked melon will also directly affect the taste, melon farmers can spray a new high-fat film, can adjust the amount of water absorption. After the watermelon seedlings bloom, you must remember to spray growth-promoting drugs, which can make the melon strong and powerful, and there will be no falling off, and it can also strengthen the nutrient delivery pathway, so that the watermelon-shaped fruit planted is sweet. After the watermelon seedlings bear fruit, during the swelling period of the melon, the plant needs sufficient water, otherwise it will take too deep roots.

During the period when the swelling is most rapid, you must remember to water more to promote the growth of the melon. Then there will be a hardening period of melon, that is, it is about to reach the maturity period, at this time, we must control the moisture, try to keep it dry, too much water will appear cracked melon, watermelon taste bad, sweetness is not enough and other phenomena, which directly affect the income of melon farmers.

In summary, the main reason for the rotten (cracked) watermelon is caused by the way of spraying nutrients, bad weather conditions, excessive temperature difference, insufficient moisture, and too bad sunlight. We must control the amount of watermelon watering, always pay attention to the weather forecast and apply fertilizer reasonably.

It may be a lack of water and fertilizer, it may be that it has been raining for a long time, or it may be that the watermelon has anthrax, or the temperature is relatively high; At this time, the soil should be eliminated, pesticides can be used, and proper fertilization and watering should be paid attention to.

It may be due to the long sunshine hours and high temperatures, or it may be that the soil has not been disinfected, pathogenic bacteria have appeared, it may also be caused by sclerotinia or gray mold, or it may be a problem with the technology used or pesticide technology.

It may be that the soil is not suitable or the seeds are not good, or there is not enough water, or there is not enough fertilizer, or it may be that the temperature is not suitable; The pH of the soil must be very suitable, the water should be sufficient, the quality of the seeds should be good, more fertilizer should be added, and measures to prevent insects and pests should be taken.

It could be that the temperature is too high, or the humidity in the soil is too high, or it may be anthracnose. Be sure to use a visible powder for spraying, also pay attention to the drainage of the soil, and do not water for a long time.

Summary. Bacterial fruit rot and pubic dermatosis. It is recommended to use succinmethyl or can kill 3,000 or spring thunder king copper or quinolione, spring thunder mycin or thiazolezinc, and zhongshengmycin for prevention and control.

Bacterial fruit rot and pubic dermatosis. It is recommended to use succinmethyl or can kill 3,000 or spring thunder king copper or quinolione, spring thunder mycin or thiazolezinc, and zhongshengmycin for prevention and control.

Prevent bacterial diseases and remove diseased melons in time. It can be used with 10% mesomycin 1000 times, 3% thiamethone 750 times, 77% copper hydroxide 800 times, 20% thiafile zinc 750 times, alternately.

Solution Physiological Diseases (1) Scientific fertilization: more rotting chicken manure should be applied on the stubble of the sandy soil, and if the soil is acidified, a certain amount of lime should be applied to avoid a large amount of ammonium nitrogen fertilizer and potassium fertilizer at one time. (2) Balanced water supply:

Soil moisture can not change drastically, otherwise it is easy to cause umbilical rot, in rainy years, usually to water more appropriately, in case of sudden increase in soil moisture when it rains. Drain water in time after rain to prevent water accumulation in the field for a long time. (3) Foliar calcium supplementation.

The watermelon had that little dot on it, and then he started to rot slowly.

This is a symptom of fruit rot.

Is it okay to use mesomycin.

OK. Zhongshengmycin can be the first bacterial disease of vegetables, the soft rot of cabbage, the bacterial fruit rot of watermelon, and the bacterial horn spot of cucumber. It can also ** some diseases of fruit trees, such as anthracnose, black pox, spotted defoliation, watermelon wilt, mildew and so on.

When using drugs for prevention and treatment, it is generally necessary to use it continuously about times, and if it is not serious, it can be used continuously for 1-2 times.

Summary. Hello! There are many reasons why watermelons are particularly easy to rot when the weather is hot:

1. The weather is hot, and the watermelon tissue ages quickly.

2. Bacterial invasion, bacteria multiply quickly.

3. Loss of water.

What is the reason why the watermelon is rotten.

Hello! There are many reasons why watermelons are particularly easy to rot when the weather is hot: 1. The weather is hot, and the watermelon tissue ages quickly. 2. Bacterial invasion, bacteria multiply quickly. 3. Loss of water.

Ask about custom messages].

<> diseases such as black spot, umbilical rot, white silk disease, sclerotinia disease, flower rot, acid rot, anthracnose, bacterial leaf blight and bacterial fruit rot may cause watermelon rot, among which acid rot mostly occurs on semi-ripe melons, and a tight white mold layer will be produced on the surface of watermelons in the later stage of the disease, which will cause melon and fruit rot in severe cases; Anthrax mostly occurs on young melons, causing them to become deformed or fall off and eventually rot.

1. Black spot disease leads to watermelon rotten fruit

The diseased part often grows a black mold layer, and the diseased spots are water-stained and dark, which causes fruit rot in the later stage of the disease.

2. Umbilical rot causes watermelon rot

As the disease progresses, the top of the watermelon quickly turns dark brown, the flesh loses moisture, is flat or concave, generally does not rot, and the diseased fruit is often sabotaged by some fungi when the air is humid.

3. White silk disease leads to watermelon rot fruit

The diseased part of watermelon is gray-brown and reddish-brown, and a silky white mycelial layer is produced on the surface, which will further radiate and expand to the surrounding areas in the later stage.

Fourth, sclerotinia sclerotinia causes watermelon rotten fruit

The diseased part is mostly on the top of the fruit, and it is a light brown water-soaked spot at the beginning and gradually expands, and when the air humidity is relatively large, the diseased part is soft rot, and blue-gray cotton hairy hyphae grow.

5. Flower rot leads to watermelon rot

First the flower rot, and then the young fruit near the residual flower is diseased, which is water-stained soft rot, and in severe cases, the whole fruit rots.

6. Acid rot causes watermelon rot

It mostly occurs on semi-ripe melons, and the diseased melons are water-stained at the beginning, and a tight white mold layer will be produced on the surface of the watermelon in the later stage, which will gradually become granular, and cause melon and fruit to rot in severe cases.

7. Anthrax causes watermelon rot

It mostly occurs on young melons, causing the watermelon to be deformed or fall off, the fruit to turn black, and finally rot.

8. Bacterial leaf blight causes watermelon rot

In the early stage of fruit infection, slightly raised brown round depressions appear on the surface of the watermelon, which may invade the flesh and eventually cause fruit rot.

9. Bacterial fruit rot leads to watermelon rot

In the early stage of the disease, there are many small dark green spots with watery stains, which develop and expand into large dark green water-stained spots with irregular edges, and the disease is serious, resulting in watermelon rotting.