Peach leaves curl than treat. How to deal with peach leaf curl. How is the disease manifested and what is dangerous

AT last years among amateurs orchard Peaches are getting more and more popular. Thanks to warming climatic conditions, excellent taste, variety of varieties and high yield tree becomes available planting material. Along with the expansion fruit crop rise and types various diseases. Among the dangerous ailments that have a harmful effect on peaches is curly hair. With the same problem, and .

Defeat by tafrin

The disease leads to the death of foliage and shoots. As a result, the tree is greatly weakened. Lack of nutrition due to a poor crown leads to the depletion of the plant. The tree blooms very poorly and practically does not produce fruit. If the defeat lasts for several years, then the plant is threatened with complete drying out. There is no cure for frizziness special means. Therefore, the main measures to prevent fungal infection are the preventive treatment of the plant with fungicidal agents. Used in the spring before bud break. At this stage, damage can be minimized.

To prevent a disease that causes peach leaves to curl, two treatments are carried out with special means:

Note!

If the treatment against plant diseases coincided with rainy weather, then it is recommended to re-spray with preparations, except for those that contain copper in the composition.

If the peach leaves are already curling, you should carefully examine the tree and remove all deformed shoots. Additionally, processing with special compounds is carried out. Such a procedure is allowed if more than 21 days are left before the formation of fruits. AT autumn period when a sick tree leaves its leaves, without fail wood being processed blue vitriol or Bordeaux solution.

Preventing peach leaves from curling is much easier than curing an affected tree. It is recommended to rejuvenate the culture at least once a year by removing old branches. Pruning strong shoots will lead to the formation of new ones. If diseased branches were removed, then they must be destroyed (burned). To strengthen the tree, increase its resistance to pests, abundant watering and timely feeding will help. For the good development of the plant, increasing the yield, a sufficient amount of nitrogen, potassium, trace elements and phosphorus is provided. Proper Care and disease prevention will prevent fruit loss, help maintain all garden crops in a healthy state.

Foreword

To avoid peach disease, constantly inspect the tree, use preventive methods to combat major fungal pathogens and pests. If everything is done on time and correctly, then you can save the peach from death and enjoy a juicy harvest. You should be attentive to all parts of the tree, especially to the trunk.

If brown blotches with a dark red or raspberry border appear on peach leaves, which eventually fall out and form holes, then your tree has been attacked by a fungal disease - clasterosporiasis. In the case of growth, the inclusions merge and form one large spot, which also falls out, leaving behind a vast hole. In addition to the leaves, the fungus affects the buds, flowers and ovaries. The process of their defeat is the same. Infected tissues gradually die, dry up and fall out.

Holes in peach leaves

The fungus feels especially comfortable in wet rainy weather, it winters well on healthy tree organs, forming sporulation. To protect the trees from this peach disease, in the spring, even before the first buds begin to bloom, we carry out. We treat the places of cuts with a thick solution of lime and 1% solution of copper sulphate. When the first signs of the disease are found, we spray the leaves with 3% Bordeaux liquid before bud break and after flowering. If kleasterosporiosis struck a peach during flowering, then we reduce the concentration of the drug to 1% so as not to burn the leaves and flowers.

After the leaves bloom in the spring, you can notice their deformation. Some leaf plates are not sufficiently formed, others have not yet had time to acquire a saturated green tint, and some even twisted, became wavy, brittle, lost elasticity. If the last leaf variant is present on your peach tree, it is a fungal disease known as curl. Leaf plates affected by the fungus acquire a yellowish-red or light green tint. They soon dry out and fall off. As a result, the tree can completely shed its foliage and be left with bare branches. It ceases to produce fully nutrients and discards the fruits that have not yet had time to form.

Signs of leaf curl

In addition to the lack of harvest, peach trees affected by curly lag behind in development from other horticultural crops, becoming less resistant to winter frosts. good condition for reproduction of the causative agent of this stone disease is rainy damp weather. The fungus is activated during the spring growing season, first appearing as a purple bloom with a border, and after a week forming growths on the back of the leaf plate in the form of a gray bloom. We treat trees for leaf curl as follows. First, we remove and burn the affected leaves and shoots, and then we treat them with copper-containing preparations, such as Skor, Horus, copper oxychloride, Hom, Oksikh.

During the flowering period, brown flowers may appear on the tree, which darken and dry completely. This alarming sign can signal the infection of trees with moniliosis, as a result of which the ovaries are not able to develop, and the already formed fruits are deformed and rot. The fungus is carried by pests of stone fruit crops, such as oriental codling moths, weevils, geese, as well as during pollination by bees from a diseased tree to a healthy one.

Fetus affected by moniliosis

The rapid spread of the fungus is facilitated by wet, cool weather. Per short term both young annuals and formed mature shoots die. As a prevention of infection, the tree is regularly rejuvenated by pruning dry and damaged branches, as well as removing rotten and unset fruits. And to cure peach trees, spray them with fungicides. The first time before flowering with the preparation Horus, the second - after the start of flowering Topaz and third after harvest Topsin-M, not forgetting to also use insecticides if pests have become the cause of the infection.

Why is the tree “crying” - how to prevent gum disease?

On the trunk of almost every stone fruit tree, you can see sticky protrusions that look like cured resin. This is a gum that was formed as a result of the destruction of cells, their membranes and sugary secretions. This phenomenon is called gum disease. It can be caused by various external factors, ranging from improper agricultural practices to adverse environmental conditions.

Peach gum disease

Among the most common causes, there is an excess of moisture, a sharp temperature drop, a glut of nitrogenous fertilizers, mechanical damage to the bark of a tree, infections against the background of other fungal and bacterial diseases (clasterosporiosis, moniliosis, bacterial cancer). As a result, cracks and burns appear on the peach trunk in the form of open wounds filled with gum. It is impossible to leave such a tree without care. Gum treatment reduces peach immunity, quality indicators of the crop, and in advanced cases can lead to the death of a large number of branches and the complete death of the tree.

Wound treatment is carried out as follows. Sharply remove the gum and clean the affected area, capturing 1-2 cm of living tissue. Disinfection is done with a solution of copper or iron sulphate at the rate of 3 g of the substance per 10 liters of water. Next, let the wounds dry slightly and cover them with a thin layer of garden pitch on top. To consolidate the therapeutic effect, before applying the garden pitch, wipe the cleaned places from the gum with fresh sorrel leaves, performing the procedure 2-3 times with an interval of 5-10 minutes.

Exists great amount peach pests. A special place among them is occupied by the eastern codling moth. She is a small butterfly that loves to use given plant for food and as a favorable place for wintering. The larvae of this pest especially like to eat young shoots of a tree, and adults - unripe fruits. In the cracks of the damaged bark, they lay cocoons, continuing to eat shoots and ovaries. To cope with the invasion of the eastern codling moth, we recommend installing corrugated cardboard or burlap traps soaked in a 1% solution Chlorophos.

Eastern codling moth inside the fruit

Among insecticides, spraying with 10% Karbofos, Benzophosphate, Trichlormetafos, 25% Rovikurt has a detrimental effect on pests and their larvae.

fruity or food moth- Another dangerous enemy of the peach harvest. It is a narrow-winged butterfly of a dark gray hue. Like the eastern codling moth, it also hibernates in the cracks of the tree bark, and in the spring it crawls out of its shelter and eats young shoots along with the core. As a result, not having time to form, the branches wither and die. The larvae of these pests eat peach buds and flowers. As a preventive measure, cut and burn damaged and dry shoots, fallen fruits and leaves. As for the main methods of struggle, they are the same as in the case of the eastern codling moth.

Insect Invasion - How to deal with it?

This familiar enemy cultivated plants often affects peach trees. It's about the ashes. Colonies of these small insects damage shoots and leaves, as a result, the leaf plates are folded and deformed, and reddish spots appear at the damage sites. The greatest aphid activity is observed in July. To combat these insects, spray the tree with a solution during the growing season. Karbofos or use the verified folk method, for which dissolve the piece laundry soap in 10 liters of water. For achievement maximum effect when using the second option, leave the peach tree in a soapy solution for 3-4 days. During this period, the aphid colonies and their larvae should completely leave the tree, and the remaining pests can be easily collected by hand.

Significant damage to peach bark is caused by scale insects, which are easily recognizable by their hard shields, thanks to which they protect laid eggs from enemies. A mass accumulation of these pests is observed in May, when the larvae pupate and spread throughout peach tree. By the end of July, they become adults, and the second breeding season begins. For pest control and as a preventive measure, before bud break, we spray the tree with an emulsion mineral oils, and during the growing season - with a solution of Karbofos.

Particularly dangerous enemies of peach are weevils-flower beetles. Adults of these insects eat buds, flowers and buds, as well as young leaves from the inside. As a result, the tree loses its ability to reproduce and stops growing. In addition, they are the main carriers of fungal diseases. If insects attack the tree after the fruits have ripened, they leave numerous narrow passages in them, where they lay their eggs. Such peaches become inedible, the productivity and quality of the crop is sharply reduced. Good performance in the fight against weevils-flower beetles is given by the installation of trapping belts, whitewashing the trunk with lime mortar, cleaning wounds to living tissue, disinfecting and treating dead areas of the bark with garden pitch, and pruning darkened buds.

The assessment of peach disease, like no other crop, should be approached very carefully, since these trees are very sensitive to fungicides and react sharply to the slightest mistake in prevention and treatment - premature shedding of foliage and fruits, reduced winter hardiness, delayed development and growth of the shoot. When growing peach, pests and diseases can be divided into several groups.

Clusterosporiasis

This peach disease is one of the most widespread and harmful. The entire aerial part of the plant is affected - shoots, foliage. Flowers and buds, ovaries. The disease is especially noticeable on the leaves - red-brown spots with a dark red or brown-crimson border. Leaf tissues affected by the fungus die off, quickly dry out and fall out, forming bald spots, which is why the disease is also called perforated spotting.

The causative fungus forms a mycelium in peach tissues, which eventually penetrates into the cells and causes their death. He calmly winters on the affected branches, shoots and flower buds. In rainy spring weather, conidia, freed from gum, spread to healthy organs of the tree, and sporulation is formed on the mycelium. Therefore, in early spring, before the start of sap flow, but when a positive temperature sets in, pruning of diseased, damaged branches and shoots should be carried out. The cut sites are disinfected with lime mortar with the addition of iron or copper sulphate.

Effective in the treatment of chemical treatment with copper chloride or meteor. In this case, the first spraying is carried out during the swelling of the kidneys, the next two at the beginning and end of flowering.

leaf curl

A prolonged, rainy, wet spring can provoke the mass development of this peach disease. The causative agent is a marsupial fungus, which appears already during the growing season on newly blossomed young leaves, first with a purple tint or border, and after 7-10 days in the form of a gray coating on the back of the leaf. Shoots are mostly affected. The leaves die off, curl and fall, as a result of which the shoot is completely exposed, and also dries up or dies at the first frost. An infected peach practically does not bear fruit, the yield drops sharply, and if ovaries appear, the pericarp is severely deformed.

Prior to sporulation, peach shoots and leaves affected by curly hair are removed and burned. Before the start of rains in the autumn period, blue processing is carried out copper-containing preparation. In the spring, the peach should be sprayed several times: the first - in the phenophase with copper oxychloride, the second - after 8-12 days with such preparations as soon, chorus with the addition of delan 65% w.g.

The photo shows leaves damaged by curl.

powdery mildew

One of the most serious diseases of peach and other stone fruits. Shoots, foliage and fruits are affected by a light gray felt coating. shoots infected powdery mildew, deform, lag behind in development or die off. The mushroom picker has special suckers with which it penetrates the epidermal cells of the tree, sucking out nutrients from the peach and destroying it. Conidia are carried by the wind and cause reinfection. The disease develops as quickly as possible in dry, hot weather.

It is necessary to timely remove the sources of primary infection - affected shoots and branches, fallen leaves and fruits. The main treatment is to spray topsin or topaz at the end of flowering. Simultaneous spraying with insecticides compatible with these preparations also has a beneficial effect.

In the photo below you can see an example of an infected peach and its fruits.

Stone fruit moniliosis

It appears in the spring during the flowering period. The flowers turn brown, dry up and crumble, the leaves, annual shoots and young ones also darken. fruit branches. The ovaries crumble, and not fallen fruits darken, deform and rot. The infection is spread by oriental codling moths, weevils, geese and bukarkas or by cross-pollination of a healthy and diseased tree. The disease actively develops during the period of wet, cool weather in the spring. In a short time, well-developed large branches and two-year-old shoots can dry out.

Regular rejuvenation of the tree and pruning of damaged shoots and fruits should be carried out. As a preventive measure, moniliosis is treated with chorus before flowering, then, after flowering, it is sprayed with topaz and a third time with topsin. This destroys all pest vectors and the fungus itself.

fruit rot

With this disease, the yield is significantly reduced, and may approach zero, since the peach fruits are affected, they deform, gradually rot and fall off. On the surface of the infected fruit, numerous pads of light gray or gray color. At first, rot looks like brown spot which is growing rapidly. The fungus-causative agent hibernates in dried fruits on a tree and begins to actively develop during the ripening of ovaries, the size of Walnut. AT summer period several generations of the fungus appear, the disease spreads rapidly.

It is necessary to collect and destroy the damaged carrion daily, and in the fall to remove the fruits remaining on the trees. Prior to flowering, the peach must be treated with preparations such as Teldor or Topsin M. Repeated spraying is carried out at the end of flowering and during the period of fruit growth.

The main pests of peach

Aphid

Small insect, mainly located on reverse side sheet. Damages young shoots, foliage, causing them to curl and dry out. With slowness in the fight, aphids can rapidly develop and damage a large number of beside standing trees. At the first sign of an insect on a peach, it should be treated with potent pesticides, since aphids are resistant to weak pesticides.

Insect-damaged leaves and shoots can be seen in the picture.

Flower weevils

This is a large group of beetles. Adults pierce buds, buds and flowers, eating away stamens, pistils, petals and less often young leaves. They are carriers of many peach fungal diseases. In the fruits, the beetles gnaw out small narrow pits in which they lay their eggs.

Effective in the fight against weevils is the chemical treatment of wood before the buds swell. Trapping belts superimposed above the trunk, pruning and removing buds with a brown top, cleaning the branches and trunk from exfoliating and dead bark, whitewashing the trunk with lime mortar give nice results in the fight against insects.

Ticks

Small, broad-oval arachnids. They hibernate on the bark of a tree, at the base of large branches. The tree is greatly weakened, with a large number: the yield drops, the shoots do not develop, the leaves become discolored and fall off.

Good results are obtained by spraying the tree with organophosphorus compounds, pyrethroids and neonicotinoids. In addition, it is necessary to regular pruning tree, keep the trunk area clean, whitewash the trunk and install trapping belts.

fruit moth

Narrow-winged small butterfly of a dark gray color. Caterpillars hibernate in cracks in the bark, forks. In spring, they bite into the buds, and then into young shoots, eating their core. As a result, the shoots wither and die. During development, one caterpillar can damage 5-6 shoots. Mature caterpillars hide in dry leaves, bark crevices or in trunk circle. Butterflies, hatching from a cocoon, lay their eggs on the buds and peach flowers.

Prevention consists in cutting and burning damaged shoots, carrion and root vegetation. Also effective are regular loosening of the soil under the crown and the imposition of a trapping belt on the skeletal branches and trunk of a peach.

Eastern codling moth

This small butterfly enjoys the peach as a wintering home. On damaged shoots, in cracks and exfoliations of the bark, under fallen leaves in the near-trunk zone, insect cocoons can be found. Caterpillars eat new shoots and small ovaries, and eventually unhardened peach pits. The picture shows a developed codling moth.

Prevention - pruning and processing

Since peach diseases can develop at lightning speed at the most favorable time for its development and destroy not only the crop, but also cause irreparable harm to the plant, preventive treatment should be carried out regularly. To prevent the development and infection of fungal diseases, blue spraying with a Bordeaux mixture or other low-toxic fungicide should be carried out 2-4 times a year. Processing is carried out in early spring, when the buds have not yet opened, and in autumn, when the tree has completely shed its leaves.

In pest control, in addition to chemical processing, necessary:

timely cut off damaged shoots, remove carrion. It is advisable to burn them at a distance of at least 15-20 m from the garden plot;
Regularly loosen the soil in the near-stem zone under the crown, put a trapping belt on large skeletal branches and a tree trunk;
Remove excess weeds near the tree, as well as basal shoots;
Carefully clean the lagged bark on the trunk and branches;
In addition, the annual contribution mineral fertilizers in the spring, allows you to get not only good harvest, but also strengthens the tree itself, increasing its resistance to disease.

Video "Peach - pests and diseases"

Video shows available methods control of major pests. Talks about the prevention and treatment of the most common peach diseases.

Every year, peach diseases cause enormous damage to gardeners and farmers. Treating trees takes not only a lot of time, but is also expensive. Gardeners try to take preventive measures in a timely manner, which significantly reduces the occurrence of problems. Peach diseases, description with photos and methods of treatment - everything is discussed in detail in the article.

We offer you to learn how to deal with numerous peach diseases

Peach diseases and their treatment, photo

Peaches in our country are very much appreciated, they are not cheap and are perceived at the level of a delicacy. At the height of the season, many peaches and nectarines can be found in the market. different varieties. However, home-grown fruit is a completely different matter. They are more fragrant, tasty and guaranteed to be free of harmful substances. That is why summer residents strive to grow this tree for their family, but for this you need to learn how to cope with the numerous diseases of this plant.

fruit rotor moniliosis - a fairly common peach disease caused by a fungus. The mycelium of the fungus is spread by insects, wind or rainwater. Spores quickly infect fruits that have damage, cracks or wounds from bird bites, insects. With moniliosis, the flowers and leaves of the tree dry up, the shoots turn black. Mushroom spores appear in the form of gray circles on ripening fruits, the flesh begins to rot, and later the fruit mummifies.

In the photo, fruit rot or peach moniliosis

Preventive measures include the following:

spring pruning of dead branches;
destruction of affected fruits and shoots;
crown thinning;
spring spraying of trees with fungicides.

Gardeners at the first sign of fruit rot resort to the use of medicinal preparations, the affected fruits are removed, and the branch on which they grew is cut off. It is recommended to use "Topsin" or Bordeaux liquid. It is desirable to carry out the first treatment even before flowering, then repeat twice more.

powdery mildew- a dangerous fungal disease, which is easy to identify. The first signs of damage appear on the leaves. A white, velvety coating appears on the surface, resembling scattered flour in appearance. Soon, the infected leaves fold, as shown in the photo, and crumble. Spores are carried by wind or raindrops and settle on fruits, which also begin to hurt, crack and rot. The thicker the crown of the tree, the more serious the defeat will be.

In the photo, mildew or peach powdery mildew

All shoots with powdery mildew are subject to mandatory pruning and destruction. Spraying with colloidal sulfur, copper sulfate, Topaz or Fundazol preparations is an effective control measure. To folk ways It should be attributed to spraying the tree with a soap and soda solution.

Peach diseases: photo and fight against them

Scab- the formation on the reverse side of peach leaves of clarified areas of a round or oval shape. Scab also affects the bark, which cracks, as shown in the photo. At the first sign, the affected leaves are removed and destroyed. All trees are sprayed with Delan, Topsin. Preventive measures include spring processing preparation "DNOK" and autumn spraying with Bordeaux liquid.

In the photo, the symptoms of peach clusterosporiosis

Clusterosporiasis- one of the most dangerous fungal diseases of peaches. Most often, fruits that grow in the southern regions of Russia, in the Moscow, Tula, Ryazan regions, on the territory of Krasnodar Territory. The infection overwinters on plant debris, among fallen leaves, wood. In the spring, you need to start inspecting and pruning the tree. All diseased branches must be cut off before the start of the sap flow, and the wounds should be treated with lime mortar or iron sulfate.

In spring, when the weather is wet and cool, the infection spreads over the area, which leads to the defeat of all parts. fruit tree. Small brown-brown spots form on the leaves, as shown in the photo. Gradually, they increase in size, and the affected leaf withers and falls off. The spots can merge, they are always surrounded by a border characteristic of clasterosporia.

Early spraying of peach with Bordeaux liquid is effective preventive measure. During the growth period, drugs "Skor", "Abiga-Peak" are used. Treatment with strong poisons should be carried out 3 weeks before harvest. To reduce the likelihood of tree infection with clasterosporiasis, it is worth giving preference to planting varieties resistant to fungal infection, namely:

Albert;
Cardinal;
Greensboro;
Hale.

Video about the treatment of peach for diseases:

Peach disease: peach leaf curl, how to treat?

leaf curl- a particularly dangerous fungal disease, most often progresses intensively during prolonged cool and rainy weather. Peach fruits are rarely affected, but symptoms can be seen on young leaves. On their surface, a red-pink wavy curl is formed. A white, shiny coating appears on the reverse side of the leaf - the mycelium of the fungus. Affected leaves turn yellow and fall off.

The causative agent is highly winter hardy and survives even in severe frosts. During the period of intensive spring growth, spores spread throughout the plant, affecting leaves and buds. Germinating, spores inhibit the development of the tree. The leaves, when viewed, are rough in texture, short and thick, as shown in the photo.

In the photo, fungal curl of peach leaves

Gardeners recommend that all affected leaves and shoots be urgently removed from the tree and destroyed. In early spring it is necessary to carry out preventive spraying of peach. For this, the fungicide "DNOK" is suitable. You can also use biopreparations, because they are not so harmful. Experienced gardeners use combinations of biologics and the simultaneous addition of a fungicide. In a dosage of 100 grams per 10 liters of water, mix:

Trichodermin is a drug containing spores of the antagonist fungus, it inhibits the development of peach curl.
Planriz is a bacterial agent that suppresses the development of rot, pathological microflora, stimulates the plant's immunity.
Pentaphage is a potent fungicide with preventive and curative properties.

During the growing season, you can use the drugs "Delan", "Skor", "Copper oxychloride". Before processing, it is recommended to carefully study the instructions for each product, observe the dosage and precautions.

Video about peach diseases and methods of treatment:

Peach diseases, description with photos and methods of treatment - important topic for consideration that excites owners and small gardens. Measures to combat them are described in the article. However, it is better to prevent the occurrence of ailments than to get rid of the consequences later, because sometimes this leads to crop losses.

Why do peach leaves curl. Curliness of peach leaves. Recommendations for treatment.

In recent years, peach has become increasingly popular with our gardeners due to its outstanding qualities and precocity. A lot of its distribution is facilitated by the diversity of varieties and availability, as well as climate warming.

Along with the peach, its diseases also spread. One of the most dangerous and harmful peach diseases is leaf curl.

Peach leaf curl is caused by the microscopic fungus tafrina ( Taphrina). It affects leaves, young growing shoots, occasionally flowers and fruits.

The first signs of the disease appear already at the beginning of the blooming of the leaves - in the month of May. First, the leaves turn pale, acquire a yellowish-pink color, their surface becomes uneven, bubbly, they are severely deformed, twisting, and become brittle. After some time, a white waxy coating of sporulation forms on the underside of the leaf. Shoots with affected leaves stop growing, thicken and twist, turn yellow.

In the future, such leaves and shoots die off, which greatly weakens the tree, which receives less nutrition due to the loss of part of the crown. Severe curl damage over several years can cause peach trees to dry out.

Curly fight. How to treat peach from leaf curl.

Since the main source of infection is the mycelium and spores that hibernate under the scales of the kidneys, in the cracks of the bark and the affected branches and shoots, and we do not have specialized means of protection against curliness (and even so far they are not particularly looking for - the peach culture in Belarus has no industrial value), then the main way to combat curliness is prevention in the form of treatment universal fungicides during the period of swelling and blooming of the kidneys.

It is at this moment that infection of new leaves with curl occurs, and if we have time to prevent it, we will reduce the manifestations of the disease to a minimum.

When to process a peach.

So, the first processing - spring before bud break- 3% solution Bordeaux liquid or copper sulfate. This will protect the peach from the second dangerous disease – perforated leaf spot(clasterosporiasis), as well as other fungal diseases.

The second processing is period of swelling and bud break peach. To do this, you can use fungicides such as Horus(the only fungicide that is active already at an air temperature of +6-8°C, unlike other drugs that act at a temperature of +15°C); Topsin M, Bayleton, Skor, Delan.

In Russia, fungicides such as planriz and Trichodermin(in principle, if allowed in Russia, it can also be used in Belarus) .

If the weather is rainy during the peach blossom period, spraying with one of the above fungicides (except for copper preparations) can be repeated.

If the infection has already occurred and curly leaves have appeared on the shoots, then

1) such shoots must be removed from the trees;

2) carry out preventive spraying, provided that at least 3 weeks are left before the start of ripening of peaches.

In autumn, during leaf fall, repeat the treatment with copper sulfate or Bordeaux liquid.

It is imperative to carry out annual peach pruning with the removal of affected shoots and periodic rejuvenating pruning.

All cut wood must be destroyed immediately.

To increase the resistance of peach to curl and other fungal diseases, it is necessary to provide the trees with sufficient watering and balanced nutrition (nitrogen, phosphorus, potassium + trace elements).

Kondratenok Yulia Georgievna, candidate of agricultural sciences for the protection of the orchard.