The grape berry begins to dry and stop growing. Why drunk leaves grapes

It happens very offensive when the grapes are already at the finish.The reasons for this phenomenon are several. You need to learn them to distinguish them from each other to save the harvest of berries.

Sunburn

The most common cause of fading berries on the vineyard is their sunburn. It acts in different ways. Sometimes the berries are simply burning in the sun, in this case they acquire a brown color and taste becomes as worried.Sometimes - just slightly prove, without changing the color. From this, however, it is also not easier: the taste changes, the biting taste appears.For sale and on food such grapes is no longer suitable.

In order to save the crop, contrary to the recommendations of the bunches do not clarify, and even specifically leave steps in the area of \u200b\u200bthe brushes.

Mildew

The greatest damage is cropping this disease is delivering during flowering when the whole brush of grapes dry. Then, because of Mildu, some berries dry out, and the parts of the covers can dry out before ripening.Usually fades the lower third or half of the clusters.The reason is simple - the fungus overlaps the flow of supply along the bunch, and below the place of the defeat, all berries are faded.

So that this does not occur, spray bushes from Mildu three times: before flowering, after and in the "pea".Use better system copper-containing drugs - readomyl, ordnation, bench, polish, acrobat.

Oidium

Also can cause the enlightenment and drying of the berries.Although it is more common for sunburns when the berries appear barely noticeable grayish-white flare, as if tan from the sun. After that, the berry or burst, or is applied.

With Oidium easier: that it is possible to fight with him up to harvest, using a colloidal sulfur or teemite.The complexity is only that these drugs at temperatures above 35 ° C cause burns on grapes.

Moisture deficiency

Grapes are considered a drought-resistant plant.He really moves the drought well, but sometimes he reacts to her drying of the covers. Berries due to lack of water decrease in size and dry. Some clusses can completely dry.

Usually grapes during ripening are not watered until the harvest is completely cleaning. But in dry weather, watering is still needed.

Interestingly, grapes reacts not only for lack, but also to excess moisture. On the wetlands, there is also a fading of the covers, similar to the moisture deficit.

Overload harvest

If you leave too many brushes on the bushes, they can also begin to fade and not tying sugar. Therefore, it is important not to greed, remove extra clusses and carefully regulate the load of the bushes harvest.

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Many gardeners grow grapes to have a storehouse of vitamins and valuables on their site. Yes, and just a delicious dessert at your desk. But not many novice grapes know how to properly care for the bushes so that they give a good and tasty harvest. After all, gardening is a constant work and the struggle with pests, which are still lying to damage the berries of grapes or the bush himself.

Often the grapes turn yellow and falls foliage. Why do the leaves dry, what to do to prevent it?

Causes why grapes dries foliage

When planting a seedling of grapes, it is necessary to take into account many of the features and correctly choose a variety for your site. If you want to keep the harvest, and afterwards the whole bush, you need to install, why dries the leaves of grapes. Depending on the cause - you can correctly pick up the "treatment" of the plant.

Grapes are very demanding in the care of a berry bush, which poorly tolerates harsh temperature differences and is afraid of cold. Therefore, growing this culture in the north of the country, gardeners are faced with many different diseases.

Shelting grapes at the end of the autumn - you can save a bush from frosts, but acquire other problems in the growth and development of the bush. Under such a protective layer, the air is forced, which leads to an increase in the percentage of humidity inside. Without fresh air on the shoots of grapes, fungi and microbes grow and grow.

Diseases contribute to the various factors that appear subsequently improper plant care:

small amount of watering;
lack of light;
lack of heat.

All this leads not only to dryness and fall out of foliage and berries, but also to the esteem of the grape itself.

The patient plant can not only die, but also infect the rest of the bushes on the plot, since fungal diseases are easily transferred by disputes with wind.

In such cases, save the garden can replace all the affected bushes to more resistant and easy to leaving the plant. If you do not take any action, you can very soon lose all the bushes of grapes. The most common diseases for all grape varieties are oidium, bacterial cancer, alternaria and many others.

Nitrogen shortage. A common reason why leaves and berries begin to dying, is the lack of fertilizers in the earth's coma, in particular nitrogen. Symptoms of such a disease: First, the leaves become lighter on the color, and then dry completely. How to get out of this situation? It is necessary to make nitrogen-containing drugs and continue to monitor the timely application of fertilizers. To prevent this problem, you can buy special powders in the store or make a cow manure or chicken litter.
Small pests. Small insects, practically invisible to our eyes, can cause irreparable harm to the plant. The most common pests of grapes include a web tick, TRU and others. To discover them, sometimes it is necessary to arm a magnifying glass. If you have found insects or traces of their stay on your plant - the plant must be immediately treated with special drugs that are included in the insecticide group against these insects. Preparations of the group of acaricides will help against ticks. An unusual yellow-red color of the leaf will be detected to detect pests, since the insects themselves are at the bottom under the leaves.
Diseases. Singing leaves can not only because of the wrong leaving or pests, but also indicate the presence of disease in the plant. Sometimes these ailments are found at grapes very often and can be dangerous not only for harvest, but also for the plant itself. The most dangerous can be called chlorine, which occurs in the case of an oversupply of carbonate in the land soil.
This ailment can be identified in several signs: the leaves become yellow, and after a while they begin to be mastered. If new foliage grows in their place, it is much smaller and thinner than the previous leaves. If the disease does not fight in time, then it affects the crop, the fruits become smaller and with an unpleasant taste. Also, chlorosis has a negative impact on the growth of young pains and on the whole plant as a whole.
As prophylaxis, regular soil loosening can be carried out, this procedure contributes to the evaporation of excess moisture from the ground and the better air exchange between the roots.

Dry leaves from grapes, what to do? The main thing is not to panic, but to establish the reason why this happens. After all, drying does not happen just like that, and later some kind of disease or improper care. And when you find out what negatively affects the foliage and berries, the treatment will pick up correctly, which will bring the result.

If grapes amazed by any disease, its yield is significantly reduced. Damage and dying plant shoots - serious damage for the vine. The pathological process can begin during the ripening of fruits or before and flow without visible signs.

Causes of blades of grapes

All diseases of the plant can be divided into two types: infectious and non-infectious.

Infectious pathologies - when grapes are infected from other patients with fungal, bacterial or viral pathogens. In the presence of favorable conditions, pathogenic microorganisms are rapidly capturing healthy bushes. Infectious diseases lead to depletion and decrease in the fertility of the bushes, in severe cases - to the death of the entire vineyard.

Noncommunicable diseases - when there is no transmission of the pathological process from patients with healthy crops. The main causes of these types of pathologies are unfavorable factors of the external environment (hail, hurricane, frost, heavy rains), unsuitable soil and improper leaving of the plant. Signs of infection of bushes by a non-infectious nature:

Non-infectious diseases also negatively affect cultural fertility and on the quality of the harvest.

Infectious diseases

Most often grapes black due to infectious diseases. The most common illnesses include:

The vital products of pathogenic microorganisms can be transferred not only from infected culture to healthy, but also with the help of animals, human and water clothes. Infectious pathogens are caused by the death of the entire vineyard.

It is important to know the causes and symptoms of pathologies in order to timely determine the disease and begin to combat it.

Mildew

Mildu is the most common disease of the vineyard. Especially susceptible to death European varieties of culture. Mildu's pathogen is a mildew-dealer mushroom. It develops in false foliage throughout the winter. Spores of the mushroom through the soil and water penetrate the leaves of healthy plants. Fungi is resistant to frost and dampness, since they have thick walls.

Mildu propagation rate depends on temperature modes. If the ambient temperature is about 25 degrees, the disputes leave the shell and in 5 hours penetrate into the foliage. The incubation period of illness depends on the time of year:

Spores penetrated into the leaves of the plant, the reason for the appearance of spots on them. Even inexperienced gardener is capable of noting pathological changes. Initially, the affected parts of the grapes have bright shiny stains. The size of formations over time increases in size, and under stains, on the back of the leaves, a light flare is formed - a mushroom.

Oidium

The second prevalence of grapes is caused by the fungus Uncinula Necator Burr. Primary symptoms of infection are invisible to the naked eye. Then on the leaves of the grapes appears a white flare. Mushrooms are not required to reproduce the moisture, the main condition is a suitable ambient temperature - from 5 to 30 degrees. Therefore, the ailment progresses in the dry time of the year or after the end of the warm winter.

It is possible to understand that grapes are infected with fungus in the appearance of his leaves. Top on them appears a pale gray shade. When erasing the plating, the plant will begin to spread the rotten smell. It should be noted that only young vineyards suffer. Bushes on which fruits have already been formed are resistant to oidium.

Incubation period of Uncinula Necator Burr fungi lasts from 1 to 2 weeks. The higher the air temperature, the faster they progress. Especially quickly mold spreads on those sections of grapes that are not sufficiently ventilated.

The pathogen fungi is actively distributed in the spring when the air temperature warms up to 8 degrees.

At this time, they spread their disputes with wind, insects and rain drops. Spores that have fallen on the plant can germinate in its cells only under certain conditions:

Plant leaves are affected by black rot mainly in June. The disease is especially susceptible to young bushes. Their green parts are rapidly covered with black splashes of rounded shape. The edges of the affected areas are hardening, resembling in the appearance of the scales. Gradually, the symptoms of infection are manifested on the crests of the plant, its inflorescences and fruits.

Anthracnose

Another reason for the blazing of grapes is a fungal anthracnose disease. It spreads with strong rains, hail, actively multiplying in a humid environment. Increased activity of fungi is observed at a temperature of from 2 to 30 degrees. For one season, the antimcan can give up to 30 generations.

Young grape leaves are affected by a poor through mechanical damage. Annznosis has its own distinctive features:

These symptoms of gardeners are often confused with hail damage. The main difference is that with the disease of the edge of black spots, it is raised.

Bacterial cancer

This ailment fear gardeners around the world. Since the disease amazes almost all grapes, leading to their blackery and death. Especially bacterial cancer is distributed in the cool regions. The culprit is alert - Bacteria Agrobacterium tumefaciens.

There are many reasons due to which the plant is infected with bacterial cancer:

Cutting the growths with subsequent processing does not bring results. The propagating bacterial cancer cannot be cured by any means. The best solution in this case is torturing the affected bush and its burning.

In the place of the infected plant, other cultures cannot be planted for 5 years.

Non-infectious diseases

Non-infectious pathologies are most often due to non-compliance with the rules for cultures. Diseases of noncommunicable nature arise due to:

All these factors negatively affect the vital activity of grape bushes. But in contrast to infectious diseases, they are easily eliminated without the use of plant processing and disinfection.

Sunbating and drying

Some kind of grapes with large varieties of berries are inclined to such a state. Avoiding the chances simply if they provide a bush with an arch or a gazebo. So hanging the clusters will be able to develop well, and the load on the branches will be distributed evenly.

If the plant does not have signs of infection with fungi or bacteria, but still drawn, you can suspect the drying of its crests. The drying of the crest does not apply to neighboring cultures and is most often due to insufficient moisture in the ripening fruits.

The drying of the ridges can cause bushes in winter. Under coating, the plant is poorly supplied with oxygen and is constantly in conditions of high humidity.

Noncommunication chlorosis

The disease occurs due to lack of iron in the soil. Sometimes the element in sufficient quantities is present in the ground, but poorly absorbed by cultures. Frequent feeding provoke an excess of potassium in the soil and it begins to push out the rest of the useful trace elements - magnesium and calcium.

The reaction of iron and excess calcium makes the first untouchable for cultures.

The disease also provokes the accumulation of hydrogen sulfide in the ground. More often, vineyards, located on heavy soils, in which oxygen is bad are affected. Blind air exchange becomes the reason for the weakening of the bushes. Berries on it begin to peel, not mature. Such bushes die in winter. Incompretable measures lead to the death of the whole harvest, because the composition of the soil is the same throughout the landing of culture.

Methods of treatment

The grape berries are black quickly, and you need to know what to do to prevent the enforcement process. Events for the treatment of culture will depend on the type of disease.

Mildu Treatment

Healthy bushes for the purpose of prevention are treated with drugs:

Kuroskat;
Strobe;
Anthratrol.

To Mildya did not damage the vineyard, the soil fertility potassium and phosphorus. From the vines of grapes remove steps, so that all its forces go to the aging fruit.

Treatment of Oidium

The fungus of this type no longer transfers the constant inflow of fresh air. Therefore, unaccomplished agrotechnical methods will help to remove Oidium:

In the treatment of oidium, grapes spray with drugs: Tanos, Horus, Topaz. This reduces the spread of fungi.

Treatment of black spotty

In order to prevent the development of the disease, prophylactic spraying is carried out at the beginning of spring. For the procedure use fungicides. The procedure is repeated 2 times during the season, combining it with processing from Oidium and Mildew.

The main rule of the prevention of black spot is the timely removal of shoots.

Sections of sections are treated with solutions, so that they do not become vulnerable to the fungus.

Anthrand treatment

The disease is poorly treatable. But with regular processing, the likelihood of its development is reduced. For spraying bushes use:

Processing is performed after heavy rains. Twice grapes are treated with fungicides - before its flowering and during the ripening of fruits.

The overall treatment scheme is as follows:

before the advent of kidneys, grapes spray with drugs containing copper;
before flowering, the vine plants are treated with topaz or strobe to protect against mild and iodium;
after a few weeks, the bushes spray from insect pests by quadris or bi 58;
non-agricultural fruits are treated with fungicides;
during the staining of the berries, the plant's chemical treatments are refused.

If there is an adverse infectious background, cultural treatment continues after harvesting.

Grow the vineyard on its plot - this is probably dreaming of many gardeners. But you will need to work a lot, because this plant must be treated in a timely manner from various infections and pests. Nevertheless, brown spots on grapes are not uncommon, even taking into account the conduct of timely feeding. Why rot and dry the berries of grapes, and how to prevent it - that's what you need to figure it out before you make your vineyard.

Main reasons

If dark spots appeared on the grape berries, the key factor that caused a similar result is not always the same. For example, if your vineyard was affected by infectious diseases, the pathogens can be fungus, viruses or pests. Much depends on the features of the care.

Frequent errors are able to become if not the key cause of the occurrence of a disease, at least it will contribute to him. We must not forget about possible mechanical damage to the branches and foliage of the plant, as well as the climatic conditions in particular your region. All this as a whole can cause the development of certain ailments. If points or specks appeared on the berries, it's time to figure out what exactly you are dealing with this time.

Infectious diseases

When pathogenic microorganisms fall on the foliage or grape berries, the disease begins to develop rapidly. In a short time, you will notice how small stains on the fruits increase in diameter, and the berries become sluggish, black and dry. What is interesting, ways to infection shrubs can be several. Optionally disputes are transferred from a patient plant to healthy.

Sometimes fungus and other malicious microorganisms fall on grapes with animals, human or water clothing. If the green grape fruits became black, be sure to consider the most common infectious diseases:

mildu or Falconic Rosa. These microorganisms can calmly fall in plant residues, and with the onset of spring, their disputes are spread by the wind. This ailment primarily causes serious harm to the berries of grapes. They soon begin to darken, and foliage twisted and can dry;
anthracnose. In the development of this disease, absolutely all parts of the shrub dry up and dry out. Initially foliage and shooting plants are covered with brown spots with a dark border. If the shrub stem suffered from the anthrax, all the affected places are recommended as quickly as possible to cut and burn. If this is not done, the plant will lose up to 70% of foliage;
black spotty. If the grapes spoke soon after the rain, obviously, the reason was exactly given. In the future, he will spread to foliage and shoots. You can correct the situation with a burgundy fluid. She spray shrubs.

Knowing what to do if dark spots appeared on the grapes, and the leaves have modified the color or dry, you can save your plants from death.

Non-infectious diseases

Suppose the berries of grapes began to black and dry. The reason is not always an infectious disease. Sometimes it turns out to be mistakes that you need to care for plants. For example, if excessively flexing the ridges of the shrub, it contributes to drying them. The lack of moisture affects the grapes in the most best. That is why watering plants during the vegetative period is obligatory.

Adverse factors also include heavy soils. If yellowish spots appeared on the leaves of grapes, it is possible that it is noncommunicable chlorosis. You will manage to eliminate the problem if mineral fertilizers in the soil are in a timely manner.

Grape treatment

When the reasons for drying the vineyards were clearly defined, it's time to start treating the ailment. The optimality of one or another method will depend on the disease itself. For example, if your shrubs were amazed by Mildew, they must necessarily farewell and then burn. Otherwise, the disease will spread to healthy grape bushes.

Suppose your vineyard suffered from black spot. In this situation, it is much easier and cheaper in a timely manner to proceed to the prophylactic treatment of the plant. For this, special fungicides are used that grapes spray at least twice a season. So that Black Spottedness does not become more of your problem, it is worth sticking to the key recommendation: unnecessary or damaged spoil shoots are immediately removed, and the sections are processed by a special means.

It is quite difficult to get rid of anthrax, so prevention is the best solution for you.

The spraying of bushes is recommended twice during the vegetative period (before the start of the flowering phase and in the process of fruit ripening). Do not forget that the treatment will be effective if you apply medicines after the rains. When it is time to collect a crop, with spraying shrubs it is better to postpone. But if the problem was not completely eliminated, in the autumn period, treatment is recommended to continue.

Prevention

The blackened bunches of grapes are far from the most desirable result for any grape. However, if the infectious disease is already affecting the entire shrub, it is difficult to cure it. Therefore, experts are usually recommended to conduct preventive treatment in a timely manner. For this, special preparations or burglar liquid are used.

Watch out for the condition of its vineyard from the very beginning of the growing period. We regularly examine the borders and the foliage of the plant for the appearance of black dots, stains or dried parts. If you pay enough time, then you will not need to look for ways of treating infectious or non-infectious ailments. Save the berries of grapes from rot, and you can enjoy their taste.

Video "Grapes and Fighting with them"

From this video you will learn about grape diseases and how to treat them.

the inogrlyubim culture of gardeners is grapes, as it is easy for it, and the fruits are delicious and useful. Even with the right landing of seedlings and with proper care, garden culture may not be happy with a rude crop every year. You may encounter such a problem as fading leaves, berries, brushes.

In this article, you will learn why the bunches of grapes are withering and dry out, and what measures will help prevent this process.

Under some circumstances can dry from half to the whole harvest

Establishing reasons

In order to stop the process of drying the grapes in a timely manner, it is important to determine the reasons. For common reasons include:

A large amount of ultraviolet.
Defeat Mildew.
False sunny burn or oidium.
Insufficient moisture.
Trees of clouds.
Defeating with gray rot.
Damage to chlorosis.
Insufficient soil fertilizer.
The invasion of pests.

Gardeners should be able to distinguish the reasons to properly organize the process of restoring the vineyard. To do this, describe each of the reasons.

Solar burn causes gradual berries drying

Large amount of ultraviolet

A large amount of ultraviolet form a burn, which affects not only on the bunches, but also on the leaves, berries. Solar burns are several degrees, and with a light lesion, grapes can not determine the cause in time. It is important to pay attention not only to the color of berries, but also for their taste. With a strong burn, the berries will change color, when burning weak or moderate, berries retain their color, but the taste changes regardless of the lesion level.

The defeat of the ultraviolet acts as a frequent reason, it is recommended not to lighten the bunches, on the site of the arrangement of the brushes to leave stepsings.

Defeat Mildew

A terrible disease, which acts as the cause, why fad and dry the bunch of grapes, there is mildu fungus. Actively attack the disease begins at the time of flowering grapes.

Mildew grapes makes a crop completely unsuitable

I am striking Mildew as separate sections of the vineyard: berries, brushes, and whole clusters. The disease is dangerous in that the infected area overlaps food access, moisture to healthy areas, garden culture begins to dry. In order to avoid defeat, it is recommended to use Ridomil, Ordan preparations, "Polych". Prevention should be carried out three times: until the moment of flowering, at the flowering stage, a month before harvesting.

Tip: In order to get a good harvest, choose the right variety that corresponds to the area of \u200b\u200byour stay. The earth needs to be disappeared, normalized to water. Pour dill near the vineyard.

False sunny burn or oidium

Even experienced winegrotar does not always correctly determine why the bunches of grapes are faded, and this affects the ways of struggle. It is important to determine correctly that the vineyards are striking - sunny burn or oidium. As with a large number of ultraviolet, berries are affected, they acquire a gray bloom, and the bunches begin to dry out. You can fight the combat with the Oidium to the harvest phase. It is recommended to use the colloid sulfur.

Oidium grapes completely destroys bunch

It is important to take into account that a number of funds, and sulfur, too, negatively affects the vineyards at the air temperature above thirty-five degrees.

Insufficient amount of moisture

Grapes love garden culture for the fact that it does not require much care, it is well tolerating drought, it does not require rich enough. But, it does not act as a sign that the grapes do not need to water, since the lack of moisture in the soil can cause the thunderstorms drying. In the absence of water, the entire vineyard suffers, and the leaves, and berries, become sour taste, decrease in size. Brushes can dry completely. If the wet summer, then watered vineyards after harvesting. During the drought period, abundant irrigation should be organized often.

The lack of moisture is manifested on the leaves and on berries

An interesting fact: if the vineyard is located on a wetland, then the brushes can also be faded as with moisture deficiency.

Trees of Grozdaev

A large amount of harvest, berries, can cause why vineyards are withering. It is important that there are no many brushes on the bushes, because the uneven distribution of sugar will be. Extra clusses are recommended to delete, control the load on the bush.

But yields need to normalize the number of covers

Defeat by gray rot

A common disease that affects the vineyards in the spring, serves gray rot. Spring is a period of high humidity and warm air, and this is the optimal environment for the development of the fungus Botrytis Cinerea. Gray rot is completely covered by bushes, and the struggle is recommended to start at the first signs. There is no moisture, minerals, the bushes begin to dry. This is a dangerous disease that suggests why the bushes are fused and dry does not have effective ways to fight.

Gray rot - Dangerous bacterial disease

Since the affected areas need to cut and burn, and this, when untimely struggle, leads to the destruction of a whole bush or a number of vineyards.

There is a Botrytis Cinerea in all regions, grapeters are important to make the prevention of garden culture. To do this, in one liter of water a small spoonful of soda, spray the bushes with a solution. There is a positive face of fungus. If you need to get luxury wine, then the fungus is applied to the fruit specifically, because the disease increases the level of sugar in the berry.

Harrow damage

If there is a large amount of carbonate in the soil, chlorosis occurs, which causes the bustle of grapes. The disease is actively developing in the early spring and in the second half of the summer period. He suffers from chlorosis the entire bush.

Grape chlorosis can cause ripe ground ripe

Insufficient soil fertilizer

With insufficient number in nitrogen soil, the bushes will fall asleep. Originally suffer from the leaves, they acquire a light shade, and the bunches breathe. In order to prevent withering, it is recommended to fertilize the soil with chemical means that contain nitrogen or chicken, cow dung.

The invasion of pests

Insects are a common cause. Vineyards striking the wave and web tick.

Philoster tick on the roots of grapes

The sizes of pests are small, to see them with a naked eye difficult, and this will not allow you to determine the invasion and correctly choose the way to fight. If you saw that insects spoil the bushes, use injections. Acaricides are recommended to combat the tick clamp.