White bloom on plum leaves how to fight. Causes of spots on plum leaves. Why do green and ripe plum fruits burst on a tree

Plum trees delight with their fruits already in the fifth, and sometimes even the fourth year from the date of planting. The culture belongs to stone fruits. This picky, fruitful tree takes root well, does not require special care. The fruits on one tree do not ripen at the same time, which allows you to feast on plums for a whole month.

If you plant several different varieties, then there will be no problems with their pollination, they will help each other out, while delighting with a good harvest.

From the plum you can cook compote, jam, and it is most useful to eat in fresh. In order for all these delicacies to take place, you need to take care of the health of the tree. For high-quality, undamaged fruits, you need to be aware of diseases and pests that can damage the crop, and prevent them in time.

The article will talk about what diseases can affect plum trees, and how to deal with them effectively.

Fungal klesterospirosis or in common perforated spots

A fairly common disease that, due to the fungus, affects the buds, branches and even flowers of the plant. It is possible to determine that the plum is sick with clasterospirosis by the following signs:

• leaves are covered brown spots, after, through holes are formed in place of the spots;

• rapid drying and falling of leaves;

• the fruits are covered with spots of dark purple color, pressed to the touch, with time they become convex, the pulp begins to dry out;

• shoots are strewn with round spots, which increase and begin to crack;

• kidneys die and fall off.

Fungal spores, which provoke perforated spotting on the leaves, hide in the wounds of the branches in winter, and come out when spring arrives. Rain, wind, insects - perfectly transfer spores to neighboring trees, which leads to infection and oppression of the crop.

Note: if you notice such signs, then you should immediately take treatment, otherwise there is a risk of the spread of the disease, and further loss of crop.

Fighting methods:

• you should carefully cut off all infected leaves and fruits, break off the shoots;

• a couple of weeks after flowering, the plum is sprayed with a solution of copper oxide chlorine or Bordeaux liquid (proportions: 10 liters of water and 40 grams of the drug);

• for preventive purposes, raking the foliage around the tree is mandatory.

Gum disease and signs of gommosis

Gommosis extends to many stone fruit trees. Most often, trees that are frozen in winter or affected by a fungus fall into the risk zone for infection. Gommosis can be determined by the yellowish sticky resin emerging from the trunk or branches, which forms a drop, which eventually dries up. The gum exudes from cuts in the tree.

One of the causes of the disease is waterlogging of the land where the tree grows, as well as an overdose of fertilizers.

For the purpose of treatment, if cuts and all kinds of damage to the integrity of the tree are found, all places should be treated with copper sulphate. If the defeat is global, then the branch is cut off.

fruit fungal rot

It is a fungal pad that covers the plum.

This disease requires immediate treatment. Otherwise, fungal spores that are on several fruits disperse throughout the tree and destroy the crop.

To prevent the spread of the fungus and protection, you should cut off all infected fruits, and spray the tree with a solution of Bordeaux mixture.

Moniliosis

Monilial fungus spreads to:

• flowers;

• young shoots;

• ovaries;

• plum.

It is divided into two types of damage:

1. Spring burn with moniliosis.
2. Summer fruit rot.

Surprisingly, the same pathogen has a different effect on the amount of spoiled flowers and cream. At high humidity fear is for the fruits.

How to determine moniliosis:

• the cream begins to rot;

• fruits fall off.

The fungus itself looks like white specks about 10 mm in size. These same specks store clusters of spores.

Moniliosis spores can overwinter in dried, last year's fruits, so you need to remove leaves and fallen plums from the ground.

Important: To prevent this disease, preventive measures should be applied in time, rather than treated later.

Prevention methods:

1. Time to trim the branches.
2. Rake up leaves that have fallen (as they may contain spores and fallen infected fruits).

If you notice trees already affected by moniliosis, you should immediately treat with a solution of Bordeaux mixture. For prevention, spraying should be carried out at least three weeks later. If the summer is humid, then the procedures are done more often.

In addition to diseases, plums can also be attacked by pests that live in fruits:

• plum codling moth;

• plum sawfly.

Plum codling moth and sawfly

Pests choose a plum for themselves, gnaw holes in it and safely populate, as in a house. The larvae are left inside, gnaw through the passages. Such a plum falls prematurely.

The sawfly is the first to operate, it lays its larvae still in flowers, which hatch by the end of flowering.

The codling moth lays its eggs on the leaves, on the underside, after the plum has faded. A week later, caterpillars hatch and begin to gnaw through the fruit.

Fighting methods:
From worms in fruits, the same drugs are used. If you treat it in time, first against the sawfly, during the flowering period with kinmix insecticides (3 ml per 10 liters of water), and then from the plum codling moth after flowering with Fufanon (10 ml per 10 liters of water), then your crop will remain intact.

Another unpleasant factor is the bitterness of the plum. Most often this is due to lack of moisture. Especially if the summer is hot. So don't
neglect watering. Water the trees at least once a week with water, and then instead of bitter plums, sweet and juicy plums will grow.

Despite a lot of diseases, this fruit tree is worth it to grow in your garden. You should spray the trees in time, carefully monitor the integrity, remove last year's fallen leaves, water well, and it will delight you with its delicious fruits for more than one year.

From this video you can learn about the causes of diseases fruit trees:

It happens that in a short time (a week or two), brown dots of several millimeters in diameter appear on the plum leaves. Then small holes form in these places. Some dotted leaves turn yellow and fall off.

chapter 1. Why do holes appear on plum leaves?

If holes appear massively on the leaves, then most likely the plum is affected by clasterosporium. Pests can also eat leaves and make holes in them, but it looks different.

Section 1. Description of clasterosporiasis

Causes clasterosporia fungus Clasterosporium carpoph. This microorganism hibernates in the form of spores, hiding in the cracks of the bark and under the bark. As soon as the spring sun warms up, and the temperature begins to rise, spores begin active germination.

The microorganism affects almost all areas and aboveground organs fruit plants, therefore, the fungus develops on buds, leaves, flowers, ovaries, fruits, and even lignified shoots.

However hallmark Clusterosporiasis is an active infection of the leaves of trees. As a result, spots of red-brown or crimson hues with a diameter of 1-2 mm appear on them. A few days later, they increase by 2 times, up to 4-5 mm, after which the tissue in this place gradually dies off. This leads to the fact that the affected areas of the leaf dry out and crumble, and a through hole appears in the leaf with a characteristic reddish border.

With excessively active reproduction of the pathogen, plum shoots are also affected. Small rounded spots with a diameter of about 1 mm of a red or orange hue appear on their surface, with a brown or black border. After a few days, they increase to 3-5 mm, stretch, are pressed into the surface and crack over time. At the same time, the color of the spot changes to a paler one with a purple border along the contour.

Not uncommon is the abundant release from such areas of gum - a thick resinous substance. With untimely treatment of the disease, the cracks heal, and growths form around them.

The affected buds of the tree are also covered with characteristic spots, after which they begin to secrete abundant gum. The gum dries, and gradually their surface becomes glossy. Over time, the tissues turn black, and the kidneys die and crumble. If up to this point flowers have time to develop on them, klesterosporiosis leads to their shedding.

Klesterosporium can also develop on fruits - ulcerative spots appear on the surface of the plums. At the beginning of the process, they may have shades of brown-red or brown flowers. Over time, they grow and take the form of warts. The top of the wart hardens, after which it falls off, and in its place a dimple forms, from which gum flows abundantly.

Occasionally, spots can grow together, forming a scab or scab, in which case the fruits die off completely.

chapter 2. What to do if holes appear on plum leaves

In modern agronomy, there are many ways to deal with ailments of fruit trees, however, to eliminate perforated spotting (clasterosporiasis), plums use only two approaches: this is the prevention of the disease with the help of agricultural practices, as well as the elimination of direct manifestations of the fungus with highly active chemicals. Let's look at each of these methods in more detail.

Section 1. The fight against clasterosporiosis of plums

If the tree is sick, then measures must be taken.

1) Agrotechnical control measures

Agrotechnical measures to prevent clasterosporiasis are quite simple, so even a novice gardener will be able to cope with them without much difficulty. The first thing to do before planting plums is to pay attention to disease-resistant varieties. In most cases, these species are not expensive, and their fruits are able to fully satisfy even a picky gardener.

If you have to take care of already planted trees, first of all, you need to carefully inspect the plant at least 2 times per season (in spring and autumn). All affected areas must be removed with garden pruner or other tools. Such parts of the plant are a real danger to your garden, so they must be burned or taken out of the site as soon as possible.

After trimming, the sections must be protected, for this purpose healing disinfectants are used. The best option is a thick lime mortar with the addition of copper (1 g / liter) or iron sulphate(3 g/liter).

Important! All garden tools that have been in contact with the affected areas of the tree must be disinfected with a 40% alcohol or 0.5% potassium permanganate solution. Otherwise, the inventory may become an active carrier of clasterosporiasis.

Often, pruning of plum branches is carried out for a rejuvenating and aesthetic purpose, this is a necessary measure, the observance of which helps not only to give the tree the desired appearance, but also to increase its fertility.

However, it is this procedure that in most cases is the reason for the infection of the plant with the Clasterosporium carpophilum fungus, since a fresh and moist wound is an ideal environment for its development. Therefore, so that pruning does not soon cause the death of the entire crop, the places where the shoots are cut must be disinfected and also protected from possible infection.

To do this, they are treated with a solution blue vitriol(3 g / liter of water), and then covered with garden pitch. In addition, care should be taken to treat wounds and cracks on the trunk and shoots, they are also treated with a solution of copper sulphate, after which they are covered with garden pitch.

Foliage is an ideal source of moisture necessary for klesterosporium and nutrients, often it becomes a place for the primary development of fungal spores. Therefore, in order to prevent the occurrence of this infection, fallen leaves at the end of the season must be collected and disposed of.

In addition, digging will also help reduce the likelihood of perforated spotting. trunk circle plums to a depth of about 30 cm, while it is necessary not to forget to eliminate all kinds of litter.

To improve the effectiveness of the procedure, eradicate spraying of the soil with antiseptics is carried out in late autumn or spring, before bud break. To do this, freshly dug up soil is treated with a 1% solution of "DNOK" or a 3% solution of nitrafen to choose from.

Important! Pruning plums in wet or rainy weather should not be carried out. Clasterosporium spores, along with drops of water, can get on fresh cuts, which will only increase the infection of the tree.

Section 2. How to process plums

For the purpose of direct treatment of fruit trees from clasterosporiasis, spraying of the trunk and crown with highly active chemicals is used.

For these purposes, in professional and amateur gardening, various potent agents are used, as well as processing schemes. All of them in one way or another have their advantages and disadvantages, but the most effective is the comprehensive protection of the garden. It consists in periodic dressing of plants throughout the entire period of active vegetation.

Be sure to process the trees at least 2 times per season, in the spring, before the leaves bloom, and in the fall, during the period of mass leaf fall. To do this, use a 3% solution of copper sulfate or Bordeaux mixture.

Preventive treatment is carried out during the active vegetation of plants. Most often, plum trees are processed 1-2 weeks before or at the time of flowering, the second time - at the end or 2-3 weeks after this process.

The most popular drugs for prophylactic treatment are the following:

• "Kaptan" (50 g / 10 l of water): the solution is used after flowering and 10-12 days after the initial treatment;
• "Skor" (2 ml / 10 l of water): the mixture is used a week before active flowering and 2-3 weeks after the end of the process;
• "Signum" (1-1.25 kg/ha): the drug is used twice, during the period of the beginning of flowering and 10-14 days after the first treatment;
• "Horus" (2.5-3 g / 10 l of water): the garden is treated with a fungicide a week before flowering and 2-3 weeks after it. The drug is also used to combat the disease in the active phase. For this, the plants are treated 2 times with a frequency of 10-12 days;
• "Zineb" (40 g/10 l of water): the drug is used after flowering and 10-12 days after the initial treatment.

chapter 3. Varieties of plums resistant to perforated blotch

Among the plums, the following varieties have the greatest resistance to the causative agent of perforated spotting:

• "Anna Shpet" is a heat-loving variety cultivated in a southern climate. The fruits are large, dark purple or burgundy with a slight matte coating, the flesh is juicy, soft, yellow-green;
• "Hungarian Azhanskaya" - early high yielding variety, quite widespread in the southern regions of the CIS. Fruiting occurs early, already 4-5 years after planting. The fruits are medium in size, the skin of a brownish-red or purple hue is covered with a thin matte coating. The pulp is tender, juicy, greenish-yellow;
• "Renklod green" is one of the most ancient and widespread varieties of fruit plants. Regions with a subtropical climate are optimal for habitation, however, the variety is also distinguished by high cold resistance (within a warm climate). Medium-sized fruits, juicy, green or greenish-yellow skin and pulp;
• "Kirke" - amateur high-yielding mid-season variety, intended for cultivation in the southern regions. The plant is distinguished by large fruits of dark blue color with a whitish bloom, the flesh is juicy, tender, greenish-yellow.

Chapter 4. Video

Plum is a common tree in the south and in middle lane Russia. The culture bears fruit abundantly and is unpretentious in care. But it can also be attacked by an infection that will spread to the entire plot, which will lead to the complete death of the crop. One of the signs of disease is a change in the color of the foliage. If these are not special red-leaved varieties, it is urgent to deal with the reasons why the plum leaves turn red in the summer.

Nutrient deficiency

If there is a lack of phosphorus in the soil, the foliage will turn red or brown tone then darkens and dries up. It will not bloom for long, the fruits will form small.

If the site has sandy soil possible magnesium deficiency. It is characterized by the appearance of red spots. Subsequently, the leaves curl and fall off.

Need to pick up the right fertilizer, then the new shoots will no longer be affected by redness.

fungal diseases

All plants, without exception, are susceptible to fungal diseases.

Favorable environment for the development of the fungus:

• nearby growing poplar;
• high humidity;
• untreated bark with open areas;
• frequent planting and contact of crowns;
• dried fruits on the branches;
• storage nearby diseased fallen leaves.

If the leaves begin to become covered with red spots, and there are white coating is coccomycosis. Its spores multiply on the back of the leaf. As a result, the fruits stop developing, quickly fall off along with the leaves. It is necessary to spray the plum and the surrounding land with copper sulphate. Coccomycosis spores withstand well low temperatures, therefore, destroy the infected branches so that the infection does not spread again.

Young trees are most susceptible to coccomycosis.

Polystigmosis or red spot is dangerous for plums. Rusty spots appear on the leaves on both sides. trunk and root system becomes weak. It will not bear fruit in the summer, it will not survive the winter frosts. To fight this scourge, you need to treat the plum with Bordeaux liquid even before flowering.

rust mushrooms

In the south of Russia, the so-called rust is common. Plums do not have immunity to it, but varieties have completely different susceptibility. Initially, the spreader of this disease is an anemone, garden flower. In its roots, spores ideally wait out frosts. In summer, they scatter with the wind, infect the surrounding plantings. Spots appear on plum leaves, then they turn red, by autumn they swell and darken. Treat with copper chloride. Varieties Anna Shpett and Renklod have low susceptibility to rust. To prevent disease, uproot the anemone.

Another of the fungal diseases is moniliosis. The tree looks like it has been burned: gray swellings form on the shoots. The buds fall sharply, the leaves dry up, the bark cracks, gum appears from the cracks. Infection occurs in the spring during flowering, if there are sudden changes in temperature. The leaves must be treated with the drug "Hom". For prevention, we use Bordeaux liquid or Horus: before bud break, then after flowering. Up to 4 liters of solution will be required for processing.

For any fungal disease, remove infected areas (leaves, branches, bark) and burn.

You can’t leave them for the winter: the fungus is very tenacious, tolerates low temperatures well. In the spring, the spores will again be carried by the wind, they will infect neighboring plants.

When processing with preparations of copper or Bordeaux liquid, be sure to wear gloves and closed clothing to avoid contact with the skin. We monitor the concentration of copper, excess can cause burns to the bark and root system.

Root system problem

The leaves will begin to change color from the top of the crown if there are root problems.

Plum and cherry plum should not be planted in areas where stagnant water is possible:

• in the lowlands;
• in areas prone to swamping;
• in areas where The groundwater passing too close to the surface.

Such a site provokes rotting of the root system.

Problems can begin if the plum is not properly prepared for planting. The roots were affected by the disease and stopped incorrectly. If the root system is affected, the young shoot must be processed, transplanted to a more suitable place.

Another danger is the excess mineral fertilizers. As a result of oversaturation with elements, a burn can occur.

It is necessary to prepare the tree in advance for winter period. Before frosts in late autumn, cut off long branches, wrap the base of the trunk to prevent cold air from entering.

In the summer, you need to monitor watering. During the dry period, you need to moisten the trees 4 times a month, pouring 7 liters of water at a time.

fruit mite

Under the influence of the pest, the leaves quickly turn red and crumble. To get rid of the tick, you need to remove the dead dried bark from the trunks. Treat with insecticides ("Karate") 3 times intermittently - during the swelling of the kidneys, then after blooming, a third time after the formation of buds.

Some gardeners vaccinate plants. This method does not always provide protection, often the opposite. The infected culture can no longer be saved, it remains only to dig up and burn. The area where it grew must be treated with copper sulfate or fungicides.

Conclusion

It is necessary to do preventive procedures with copper preparations and Bordeaux liquid, check the plants for pests and monitor the entire area. Remember good harvest can only be obtained from healthy plants.

Like any living organism, the plum tree is susceptible to disease.

It affects him, like a person, pathogenic flora of three types:

• Bacterial;
• viral;
• Fungal.
• Non-infectious diseases in trees also occur.

During the years of revelry of any of the groups of diseases, not only the garden can lose its crop.

The owner, who has not taken timely measures to protect and treat plants, may lose the garden itself.

Gum treatment of plums and methods of treatment

Gum therapy is not infectious disease, but more often occurs on those trees that have been damaged by frost, infected with other diseases. Quite often, gum disease is a sign that the soils in your area are acidic or overly moist. Gum production is also observed in the areas of novice gardeners who overdo it with fertilizer application.

How to recognize the disease?

The first signs of the disease - on the trunk you can see droplets of translucent gum, which is also called resin. The harm from gum treatment lies in the loss of an aesthetic appearance by plants, as well as in the possibility of infection penetrating through wounds.

Control measures

If gum is released, this place must be cleaned with a sharp knife, and then disinfected with a 1% solution of copper sulphate. For greater reliability, after a few hours, the wound can be rubbed with fresh oxal leaves and repeat this procedure several times. At the end of the treatment, the wound should be covered with ordinary garden pitch.

How to protect the garden from gum disease?

In order to prevent the plums that grow in your area from starting to secrete gum, you need to properly care for them, water them moderately and apply normal doses of fertilizer. All wounds that form after sanitary or formative pruning should always be covered with garden pitch.

Plum pockets and methods of treatment

This disease affects the fruits. With a significant infection, more than half of the entire plum crop can suffer.

How to recognize the disease

The first signs of the disease can be seen when the fruits become baggy, and their fleshy part grows strongly. Diseased fruits do not form stones, they are strongly stretched in length and lose their taste.

Observant growers identify this disease by the whitish, waxy coating that appears on the fruit. This sign precedes the mass abscission of plums.

Approximately 15-17 days after the end of flowering, you should carefully examine the trees in the garden.

Plum pockets - fungal disease, which has been widely distributed in years since high humidity air and low positive temperature during the flowering period.

Control measures

Treatment of plants with 3% Bordeaux liquid will help overcome the disease. in early spring(before bud break) or during their swelling. You can carry out additional processing immediately after the plum blossoms, but then the concentration should be 1%.

How to protect a plum from pockets?

If you do not want the disease to appear on your site, always collect and destroy fallen fruits and cut out those branches on which diseased fruits were noticed last year.

Plum dwarfism and methods of treatment

An insidious viral disease that occurs more often in a latent form. It is difficult to identify the affected tree. Dwarfism can manifest itself only at the last stage, when the fight against the disease is meaningless. Therefore, all actions of the gardener should be directed more towards preventive measures.

Signs of the disease:

• depressed tree growth;
• unnatural shape of the leaves. They become elongated, clumsy and more like willow leaves;
• premature leaf fall. This is because the sheet plate becomes brittle;
• yield reduction;
• lack of peduncles or a small number of them. The flowers are ugly and underdeveloped.

At the last stage of the development of the virus, there are practically no leaves on the branches of the tree, they are bare. Single needle-shaped leaves can be seen only on the tops of the shoots.

Infected trees cannot be treated and must be uprooted.

As preventive measures resistant plum varieties are planted in the garden, and plants are regularly treated for pests.

Plum moniliosis and methods of treatment

The causative agent of the disease is the monilia fungus. Infection of the tree occurs during the flowering period, if there are drops or a decrease in temperature. Cold spring weather only speeds up the process. Spores penetrate the plant tissue through the pistil, gradually affecting the entire tree.

Signs of defeat:

• sharp fall of flowers;
• drying of peduncles and adjacent leaves;
• old shoots and branches crack, gum flows out of the formed wounds;
• the whole tree looks "burnt".

The disease spreads not only to fruits, but also to shoots, plum leaves. The pathogen overwinters in the affected tissues of the tree. Prevention of moniliosis begins in the fall. All affected shoots are cut out and the garden is treated with Hom, Bordeaux liquid or copper oxychloride. To spray one tree, you will need up to 4 liters of solution.

Perforated spotting, or plum clusterosporiosis and methods of treatment

The causative agent is the fungus Clasterosporium carpophilum. Numerous, small, reddish spots appear on the leaves, brightening over time in the center, with a blurry raspberry border. The affected tissue cracks and falls out, the sheet becomes perforated.

With a strong spread of the disease, the kidneys, young shoots and fruits are affected. Shallow ulcers with gum are formed on the fruits, reddish-brown spots with a scaly elevation appear. The fruits are deformed, partially dry out. Affected leaves fall prematurely, and affected shoots dry up.

Control measures. To treat plums from this disease, spray the trees before bud break, and again, immediately after flowering with a 1% Bordeaux mixture, HOM or Abiga-Peak preparations. With a strong development of the disease, repeat spraying after harvesting the fruits with the same preparations.

Cercospora plum spot and methods of treatment

The causative agent is the fungus Cercospora cerasella. The spots on the leaves are small, brown in color with a dark border. On the underside, dark sporulation pads form, the tissues of the spots crack and fall out, the leaves turn yellow and fall off.

Control measures. Collect and remove plant debris, spray trees immediately after flowering with a 1% Bordeaux mixture or HOM, Abiga-Peak preparations.

In case of a strong spread of blotch, spray plum trees also and Abiga Peak after fruit picking to treat this disease.

Plum brown spot and methods of treatment

When a plum is affected by brown spotting, or gnomoniasis, small spots begin to appear on its leaves from spring, which can be from reddish-brown to yellowish-ocher, with a purple border. With the development of this disease, black small dots appear on both sides of the leaves - spores of the fungus. Subsequently, the spots increase, turn brown and occupy the entire leaf plate, then the leaves curl and fall off.

The fruits do not ripen, and more ripe plums become ugly in shape. As a treatment, before flowering, the soil and trees are sprayed with a solution of copper sulfate 1% (100 g per 10 liters of water). 14 days after flowering, trees can be treated with 1% Bordeaux liquid (100 g per 10 liters of water) or Hom fungicide (35 g per 10 liters of water). In case of severe infection, repeat the treatment 2-3 weeks before harvest. As preventive measures, it is necessary to remove and destroy fallen leaves in time and dig up the soil around the tree trunk - in the place where fungal spores hibernate.

Polystigmosis - red spotting (lat. Polystigma) plums and methods of treatment

Polystigmosis refers to common fungal infections, the spores of which, with high humidity at the end of spring, affect the plum - diseases and treatment with a photo, as well as detailed description external signs will help to recognize what exactly the tree is infected with and begin processing.

Small red spots appear on the leaves of trees, which gradually dry out and die. The main preventive measure is the cleaning of plant debris and the burning of fallen leaves in the fall, since it is on them that the pathogenic fungus hibernates. Diseases of plum leaves - polystigmosis or red spot.

If symptoms are detected, it is necessary to carry out an uprooting treatment of plants and soil in the near-stem circles with 1% copper sulphate before bud development begins. Further control methods are the use of fungicides Oksikhom, Skor, Topaz.

Spraying is carried out before flowering, at the end, and after harvesting. The most resistant varieties: Renklod Altana and green, Ochakovskaya, Vengerka.

Plum rust and treatments

Rust on the leaves of the plum tree appears most often in the height of summer. The formation of spots is caused by a fungus, which over time provokes spores in their dark center. The mycelium of the fungus is spread to neighboring plants by wind or rainwater drops. The leaves themselves fall off quickly. According to the observations of gardeners, the whole tree suffers from rust. It weakens and does not tolerate the winter period.

Spraying the plum with a fungicide will kill the fungal infection. You can use Bordeaux liquid. It is important to finish the treatment with any poison 20 days before the fruit ripens. For prevention, you can spray the plum with a fungicide in late June and mid-July. This will be enough to prevent rust from affecting the tree.

Root cancer of plum leaves and methods of treatment

Plum tree disease is caused by bacteria that live in the soil. Microorganisms easily penetrate the root system through the affected areas and cracks, as a result, growths are formed, the growth of the tree stops, young seedlings, as a rule, die.

Note: most often, root cancer appears in dry weather, on neutral and slightly alkaline soils.

How to deal with the disease:

• Do not plant new seedlings of not only plums, but also other fruit crops on the infected area.
• Dig up a tree, inspect the root system, cut off all growths.
• Disinfect healthy roots with a solution of vitriol - per bucket of water (10 liters) 100 grams of copper sulfate.
• If the root system is severely affected, it is better to destroy the seedling.
• Upon completion of work, all garden tools treat with a solution of chloramine or formalin.

Video about plum diseases and methods of treatment: