American powdery mildew, which affects gooseberry bushes, refers to diseases of fungal origin.

It is capable of causing significant harm to this berry crop, as it affects all the main parts of the plant:

• Fruit;
• Leaves;
• Young shoots.

Signs of powdery mildew on gooseberries

The main signs of the disease are quite simple to determine. On these parts, foci initially appear with a white coating, as if sprinkled with flour. This is nothing more than a mycelium with spores, which in dry windy weather are carried not only by air masses, but also by insects, thereby infecting neighboring bushes. During the life of the fungus, the plaque on the gooseberry coarsens, thickens and acquires a dark brown hue, resembling felt. The diseased plant begins to weaken and dies.

The appearance of powdery mildew is observed on gooseberries, usually after flowering. During this period, the bush actively gives rise to young shoots and forms the ovaries of its fruits. Traditionally, the disease spreads from the lower tiers of the plant, affecting young, tender shoots and berries. Such distribution is associated with suitable conditions for the germination of pathogenic spores inside the bush itself. It is the lower tiers that are closest to the ground, where the source of infection, located on last year's leaves and berries, successfully hibernates. After that, the disease spreads higher and higher.

During the summer period, powdery mildew on gooseberries manages to attack the shrub twice. The first defeat occurs in the spring at the time of active growth of green shoots and the formation of ovaries. The second - with the onset of the second wave of growth of young shoots, when the crop has already been harvested.

The mycelium of the ill-fated powdery mildew feeds through the young integumentary layers of the gooseberry. Exactly this vulnerable spot plants. This explains the selectivity of the disease. Indeed, during this period of development, young shoots, ovaries and leaves do not have time to coarsen properly. Interestingly, the infection can appear on young leaf blades as young as 10 days old. On berries, the fungus can successfully develop within 50 days from the moment of their formation and growth.

Reasons for the spread of powdery mildew on gooseberries

Powdery mildew fungus that affects gooseberry bushes loves high humidity and warm weather. So the optimal temperature range for the growth of mycelium is the range from 17 ° C to 28 ° C. The air humidity should be >90%. When the ambient temperature rises to 30 ° C, the infection stops its development. And at 32 ° C and air humidity less than 30%, the mycelium begins to dry out and dies.

Interestingly, in different years powdery mildew spreads on gooseberries in different ways. This is due to certain weather conditions. For example, sharp outbreaks of plant diseases occur in years with favorable conditions for the fungus. In just a few days, a maximum of a week, all young growths and ovaries are affected. In years with hot and dry weather, spores are in no hurry to germinate, and therefore summer residents manage to harvest a good harvest of berries untouched by infection.

In addition, the spread of American powdery mildew is influenced by such factors as:

• Agrotechnics of growing gooseberries;
• Shrub planting site;
• Distance between plants;
• And other factors.

It is known for certain that plants located in the lowlands of the garden plot are affected faster and more strongly than in elevated places. The soil is weak there. There, fog constantly gathers near the surface, water stagnates. And these are the most favorable conditions for the development of mycelium.

In addition to this outbreak in fruit plants and their severe course can be provoked by summer residents themselves. Excessive watering and the use of dark materials as mulch (peat, non-woven geotextiles, etc.) can be the very reason why gooseberries are affected by powdery mildew. From such agricultural practices, the humidity and air temperature of the bush increase, which contributes to the active spread of the disease.

Another reason for the spread of the disease are insects, both leaf-eating and sucking. These include gooseberry moth, yellow gooseberry sawfly. Shrunken and eaten leaves on the shoots contribute to the active appearance of a young growth vulnerable to powdery mildew. By the way appearance a large number young shoots can be provoked by excessive thinning and inept pruning of bushes.

Prevention and control of powdery mildew on gooseberries

And now, dear readers, we have come to the most important thing of our article - to the fight and preventive measures against American powdery mildew on gooseberry bushes. Taken together, this is a series of protective measures that must be strictly followed if you want to see healthy shrubs and collect good harvests. These include the following:

• Agrotechnical measures;
• Usage chemicals;
• Use of natural remedies;
• Preventive measures.

All agrotechnical measures are aimed at increasing the overall resistance of plants. And the main task for the gardener is to create favorable conditions for the speedy maturation of integumentary tissues. What do we have to do:

• Try to plant shrubs in sunny and ventilated places;
• Control the density of the crown of the plant;
• Do not carry out heavy pruning;
• Timely and competent top dressing.

An excess of nitrogen in the soil will contribute to the strong growth of young shoots. But the introduction of potash and phosphate fertilizers will contribute to the rapid maturation of tissues. Which, of course, will have the best effect on the overall resistance of gooseberries to powdery mildew.

The use of chemical control agents is aimed at the destruction of spores and mycelium. Autumn sometimes and in the spring, gooseberries are best sprayed with a solution of copper sulfate based on a 10 liter bucket of water 200 grams of the drug.

The soil under the bushes, in order to speed up the decomposition of fallen leaves and other plant residues, spray with a 7% solution of urea.

In addition, in the fight against powdery mildew that appeared on gooseberries, it is recommended to use drugs such as:

• Topaz - dissolve one 2 ml ampoule per 10 liters of water;
• Bordeaux mixture -100 grams per 10 liter bucket of water;
• An aqueous solution of soda with laundry soap - 40 grams of soap and 50 grams of soda ash per 10 liters of water.

Natural remedies will also be no less effective means of combating powdery mildew.

As such means, infusions of rotted hay, mullein or hay dust are used.

Such infusions allow the cultivation of special bacteria that feed exclusively on powdery mildew. Prepare them in the following way. For 1 kilogram of raw materials take 3 liters of water. Insist all this for 3-4 days, filter and dilute the resulting extract with 10 liters of water. Spraying shrubs is best done in the evening sometimes after sunset. Holding such an event in the morning or afternoon hours will not give any effect, since beneficial bacteria die in sunlight.

Besides, experienced gardeners in the struggle for the preservation of plants and fruits, a soap-ash solution is used, which is sprayed on the bushes. It is prepared at the rate of 400 grams wood ash and 50 grams of chopped laundry soap to a bucket of water.

And, of course, Special attention should be given preventive measures to combat gooseberry powdery mildew. Here it is very important to remove and destroy damaged fruits and infected shoots in time. Digging the soil near the trunk circles is very important.

Spraying plants has proven to be a very effective preventive measure. in early spring hot (45 ... 50 ° C) water. A short-term exposure to elevated temperatures will not be able to cause any harm to the plant, but it is quite capable of destroying the mycelium of powdery mildew.

And remember. Only the timely implementation of all measures will allow you to get rid of an extremely harmful fungus.

powdery mildew gooseberry: causative fungus - Sphaerotheca mors-uvae Berk. Et Curt.

Class: Ascomycetes - Ascomycetes

Harmfulness of the causative agent of gooseberry powdery mildew

This disease is widespread. All above-ground organs of the plant, leaves, inflorescences, shoots, mostly young, berries are affected. The disease begins to appear immediately after the leaves bloom and progresses throughout the growing season.

Symptoms of gooseberry powdery mildew

Starting in spring, the infected organs of the plant begin to become whitish. powdery coating which is very easy to wash off. Young affected leaves usually curl up, and the ovary that appears falls off, the berries affected by the disease shrivel and dry out quickly. The shoots become deformed, twisted, their growth slows down and eventually they die. In summer, the plaque covering the berries and shoots takes on the appearance of a brownish film.

Biology of gooseberry powdery mildew

Mass infection of gooseberry bushes occurs precisely at the stage of conidial sporulation, the development of which takes a long time, forming many generations.

The marsupial stage in the development of the pathogen occurs in summer period, the plaque becomes more dense and acquires a brownish color. This brown plaque consists of mycelium and fruiting bodies. The fungus overwinters on infected gooseberry shoots and berries.

Bagspores, in fruiting bodies, ripen only in spring, after overwintering.

The release of ascospores from the fruiting bodies and infection of the plant occurs in the spring on the first warm days and coincides in time with the blooming of the leaves and opening of the gooseberry buds.

The causative agent of the disease infects only the young tissues of the plant: ten-day-old leaves, young shoots and newly formed berries. 12-15 days after infection, the first symptoms of the disease appear on the gooseberry bushes. The disease develops especially violently in thickened plantings deprived of care at a temperature of 20-30 ° C.

Powdery mildew gooseberry photo

Control measures for gooseberry powdery mildew

Powdery mildew causes great damage to gooseberry plantations. With a very strong defeat by powdery mildew, the yield is reduced to significant levels from 20 to 50%, the growth of the bush falls and young shoots die. As a result of the active activity of the pathogen within two to three years, the complete death of the bush may occur.

Agrotechnical control measures

• preventing thickening of landings;
• thinning of dense plantings;
• destruction of weeds throughout the summer;
• digging the soil under the bushes;
• application of forfor-potassium fertilizers;
• avoid excessive application of nitrogen fertilizers;
• it is necessary to grow healthy bushes.

Chemical control measures

Spraying of bushes is carried out either in autumn after the leaves fall, or in early spring (working fluid consumption is 1500-2000 l / ha).

• Topaz 100, k.e.- 0.3-0.4 l / ha, spraying is carried out during the growing season, the multiplicity of 4 times;
• Horus 75, v.g.- 0.5-0.7 l / ha - during the growing season, 3 sprays should be made.

The gray-white coating that appeared on gooseberry berries is a sign of infection of the plant with a dangerous fungal viral infection - powdery mildew. An uninvited "guest" came to us from America. The disease spreads rapidly throughout the culture. White color over time it becomes gray and even acquires a brown tint. Adaptation to harsh winters contributes to the survivability of viruses. They endure our frosts on damaged bushes, so that with the onset of spring they multiply again with spores that already fall on nearby growing plants. When the first signs of powdery mildew are found, you need to know what to do with fruit crops, what control measures to apply.

Dangerous fungus

The fact that the gooseberry is useful, a storehouse of vitamin "C" is known not only to man. Powdery mildew also "knows" about it. Microscopic spores of the fungus are brought by the wind, along with birds and insects. Raspberries, yoshta, currants settle on bushes. In the last decade of May, according to the characteristic white bloom- the initial stage of infection - on the green shoots of the pest and are found. These are mushrooms. Given the rapid reproduction, the fight against powdery mildew on gooseberries begins immediately after the first symptoms appear, until the fruits have formed.

Spring warm days with rains create comfortable conditions to reproduce spores. If the bush has been infected since last year, the spores were not destroyed and overwintered safely, then in the spring, most often, the spread of powdery mildew begins from the lower branches. Covered leaves, and then the fruits with a white coating, after a while have an unattractive rust appearance with a hard crust that is difficult to clean. Leaf plates are deformed, twisted, stop developing. Young growth on the bushes dries out.

"Weaknesses" of powdery mildew

Like any pest, powdery mildew is "afraid" of chemistry. All preparations in liquid form are applied by spraying three times during the development period: in the spring, before the onset of active vegetation, when the first flowers appear, and another one and a half weeks after the start of flowering. Moreover, for preventive purposes, it is also necessary to treat neighboring plants with chemicals.

The lesions are already in the critical phase - the fruits cannot be consumed, and the bush must be treated with aggressive chemistry

Attention! Proper irrigation of plants should be carried out with a sprayer with a spray a wide range. In this case, the liquid is applied to the crown, to the soil in the root zone. Special attention is given to the wrong side (shadow) side: under the branches, on the back of the leaves. The plant is conditionally divided into zones and irrigated in turn: the “top”, “sides” and the bottom of the bush with the capture of the soil around it.

• Among the available and inexpensive means– . It is dissolved in an amount of 100 g in 10 liters of water. Spray at the beginning of the growing season.
• A good result during the flowering period from treatment with a solution of sodium carbonate. For 10 liters of water you will need 50 g of soda ash.
• Good effect and from the solution (0.2 kg of the drug and 10 liters of water at room temperature). Apply before bud break.
• You can get rid of powdery mildew on gooseberries with the appearance of buds if their branches are sprinkled with a composition. It is sold in specialized stores or prepared independently. Bordeaux mixture from powdery mildew on gooseberries is used 3%. For cooking, you need to take: copper sulfate (copper sulfate) - 0.3 kg, lime - 0.4 kg, water - 10 liters. First, vitriol is dissolved in 1 liter of water. Then, after complete dissolution of the salt, another 5 liters of water are added. The resulting saline solution is gradually poured into the lime solution. Well mixed, filtered. You should get a rich blue Bordeaux mixture.
• Copper-containing preparations against powdery mildew on gooseberries: Gold, Ridomil Thanos, etc.
• A proven remedy for powdery mildew on gooseberries is potassium permanganate (KMnO4). In a weak solution prepared from 1.5 g of the drug per 10 liters of water, it is applied to the gooseberry twice: before flowering and again after 10 days. Topaz is used for the same purposes.
• Crystals of permanganate salt (2 tablespoons) are diluted in water (10 l). The mixture is heated to 90°C. To hot compositions, the branches of the plant, as well as the soil under the bushes, are irrigated before the formation of buds for the purpose of prevention.
• In the distribution network, you can purchase chemical-based drugs that kill the fungus (fungicides):, Skor, HOM, Abiga-Peak and others. When preparing the solution, you must strictly follow the instructions.
• Fitosporin has a good effect. This is a complex effect on the fungal and bacterial environment of the drug, especially in the soil litter. It's all about. preserved live bacterium Bacillis subtilis, which does not die even at -20 or +40 °C. The fruits and soil are treated both before planting the plant and during the fruiting period.

Physical and cultural measures

Treatment blue vitriol- as a way to prevent powdery mildew

• When the snow melts, all the foliage wintering under the bushes is burned along with spores.
• Gooseberries are regularly inspected. Cut off at the first appearance of infected branches. This should be done on the eve of winter and with the onset of spring. All trimming is burned, or it needs to be dug outside the boundaries of the garden.
• In a critical situation, when none of the processing methods helps, you should act radically: uproot and burn the infected bush.
• Most effective method get rid of the pest - plant varieties resistant to powdery mildew fruit crops: "Finnish", "Harlequin", "Houton", "Gingerbread Man", etc.

From public stocks

Folk remedies in the fight have a sparing effect on the plant itself and on the future harvest.

Common household formulations, dietary supplements or medications in our home first aid kits will help get rid of the pest without resorting to drastic measures.

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Powdery mildew on gooseberries - control and prevention measures

Symptoms of the disease should be distinguished from the manifestation of other fungal infections, for example, phytophthora. This is necessary in order to select effective methods and properly treat a sick bush.

Risk of infection and consequences

Signs of appearance

Recognizing powdery mildew on gooseberries is easy by the following signs:

• the surface of the affected leaves is covered with a whitish coating (mycelium), which is more often localized in separate areas in the form of spots;
• gradually, the infection covers the surface of young branches, and then the set berries;
• the affected areas become brown, coarsen;
• the attack spreads over the entire height of the bush, the fruits do not have time to ripen, deform, look inedible.

In the American form of the disease, the plaque is denser than in the European one: in the latter case, it resembles a web. Despite the fact that powdery mildew is not dangerous to humans, it is impossible to eat a berry if it is covered with a coating - an allergic reaction is possible.

Causes

To understand how you can get rid of powdery mildew on gooseberries, you need to understand the mechanism of infection. The causative agent, which has fallen from the outside, waits for the moment when the plantation weakens, after which it begins to multiply. The disease is promoted by excessive pruning, due to which the increased growth of fragile young shoots begins.

One of the provoking factors in the development of the disease is the neglect of autumn harvesting of fallen leaves. Inside the substrate, the spores of the fungus remain until the onset of the new season, after which they are activated. Strong, well-developed stands are more resistant to disease damage than weakened specimens. However, this does not mean that their danger will pass: the development of spores will take a little longer, but the disease will still manifest itself.

Factors affecting development

Soil seeding alone is not enough to develop symptoms - this requires the presence of certain factors:

• excessive watering (if the topsoil is still wet);
• rainy cloudy weather for 10-12 consecutive days;
• too dense planting of bushes;
• excess nitrogenous compounds in the soil.

The disease often appears on plantations growing in low-lying places, as well as in the absence of good drainage, when water stagnates in the soil.

Distribution methods

The fungus forms spores, which settle on the surface of the soil, and then are dispersed by the wind. The infection can spread through infected cutting tools and even gardener's clothes. At high planting densities, the spray generated during irrigation contributes to the transfer of the powdery mildew pathogen. Insect pests, especially the gooseberry moth, are also capable of spreading spores of the pathogenic fungus.

Effective ways to fight

There are many methods of treatment. How to treat gooseberries from powdery mildew? It is worth noting that it is better to give preference to biological products and folk remedies, especially during fruiting. Fungicides should only be used as a last resort.

Chemical

Some drugs can be toxic to bees - this must be taken into account if an apiary is located near the site. The degree of risk, as a rule, is indicated by manufacturers on the packaging of products.

The use of copper sulfate

The use of copper compounds is one of the most affordable chemical methods control of gooseberry powdery mildew. To prepare the mixture you need:

• heat up to a temperature of 30-32°C 10 l pure water;
• dissolve 100 g of copper sulfate in a liquid.

Plantings are treated with the agent at the beginning of the growing season, that is, before the leaves appear. Sprinkle "medicine" should be not only on the shoots, but also on the soil around the bushes.

Saltpeter

Ammonia preparations are also effective, but they can be used only after the flowering of the plant. The solution is prepared from:

• 10 liters of warm water;
• 50 g of ammonium nitrate.

When spraying, it is better to protect the respiratory organs by wearing a fabric mask.

Potassium permanganate

Potassium permanganate is able to help overcome powdery mildew if plantings are treated with it at the initial stage of the disease. To obtain a disinfectant composition, dissolve 1.5 g chemical compound in 1 bucket (10 l) of water. Plants on which the first signs of damage are noticed should be sprayed with the resulting mixture. The surface of the soil should also be watered.

soda ash

Sodium carbonate kills the spores of the fungus that causes gooseberry powdery mildew. The chemical is used in conjunction with soap. To prepare a healing liquid, you will need:

• 50 g of soda ash;
• 10 g of laundry soap;
• 10 liters of warm water.

All ingredients are thoroughly mixed. Processing is carried out twice: before flowering and after its completion.

"Topaz"

With the help of chemicals, spores of the fungus are destroyed, the development of mycelium stops. "Topaz" is a one-component agent based on penconazole. advantage given substance is that it penetrates extremely quickly into the tissues of the plant, due to which the treatment of plantations is possible even 2-3 hours before the upcoming rain. The effectiveness of "Topaz" is not reflected low temperatures air.

To remove the fungus and not harm the plants, the dosage of the drug should be strictly observed.

The contents of a 2 ml ampoule are dissolved in 10 liters of warm clean water. Spray on shrubs should be in calm weather. The best period for the procedure is the beginning of the growing season. "Topaz" is not suitable for fighting if the fruits are tied. With the secondary appearance of signs of powdery mildew, spraying is carried out again.

"Hom"

The drug is copper oxychloride. Treatment of a diseased gooseberry should be carried out during the growing season, with the only exception being the flowering period. To prepare the mixture, dissolve 40 g of powder in 1 bucket of clean water. Before dilution, a small amount of liquid can be added to the dry product to make a slurry. The mixture must be used immediately - it is not subject to storage. For better adhesion active substance you can add 100 g of milk to the solution. It is important to ensure that the leaves are completely wetted, especially from below. The procedure is carried out in calm weather.

"Amistar Extra"

The composition of the drug includes azoxystrobin and cyproconazole. Their complex provides a long-term protection effect, blocking the growth of pathogenic fungus. The fungicide is effective at all stages of the development of the disease. Its protective action continues even after precipitation.

The disadvantage of the tool is that it is produced only in large containers, as it is designed for industrial use.

"Amistar Extra" is dangerous for bees, therefore it requires special care when handling it. The treatment is best done by wearing a mask. To obtain a solution, the suspension is mixed with water in the proportions indicated in the instructions. The first spraying is carried out when signs of powdery mildew are detected, the second - if necessary, if the disease has resumed its development.

Biologicals

The most common remedy is "Fitosporin-M". This microbiological preparation containing the spore culture of Bacillus subtilis is available as a powder, paste or liquid (suspension). It spreads through the vascular system of the gooseberry and stops the reproduction of the fungus. The tool retains its properties even after freezing.

"Fitosporin-M" is used at any stage of development: during the growing season, when opening buds, fruiting. Spraying is carried out 1 time in 10-12 days. The drug is diluted with water according to the instructions. For 10 liters of water consumed:

• 5-6 g of powder;
• 15 g of paste.

The suspension is diluted by adding 10 drops of liquid for every 200 ml of water. Another widely used drug is Planriz. Its basis is the culture of Pseudomonas fluorecsens. Beneficial microorganisms destroy the shell of powdery mildew pathogens. "Pentafag C", "Gamair", "Alirin B" have a similar effect.

Folk recipes

Preparations made at home are harmless to humans and pets. They are not toxic to bees, in addition, when using them, you can eat berries without fear. How to get rid of powdery mildew on gooseberries with folk remedies?

soda solution

Sodium bicarbonate is a compound that inhibits the development of fungus. In the fight against powdery mildew on gooseberries, soda can be an "ambulance" if country cottage area located away from the city and there is no way to quickly purchase a tool industrial production. When preparing a treatment solution, it should be borne in mind that the powder cannot be diluted with water, the temperature of which is higher than 55 ° C - beneficial features substances are lost. The spray mixture should consist of:

• 5 liters of water;
• 2 tbsp. l. baking soda;

For maximum effect, treatment is carried out every 10-12 days. By the way, this frequency is relevant for all folk remedies for powdery mildew on gooseberries.

A decoction of horsetail

Many underestimate the compositions, which are based on vegetable raw materials. Meanwhile, in the fight against powdery mildew on gooseberries horsetail successfully competes with chemicals. It increases the immunity of plantings, while performing therapeutic and prophylactic functions. To prepare a decoction, 1 kg of chopped horsetail should be soaked in 10 liters of water. After 12 hours, the liquid is brought to a boil, then cooled. The resulting concentrate is diluted in a ratio of 1:5. Plants are treated every 10-12 days.

Tansy

A decoction of the plant is used for preventive purposes: they can be sprinkled on the surface of the soil around the plantations. The procedure is carried out twice a year: in spring and autumn. To obtain a disinfectant liquid, 30 g of dried raw materials should be poured into 10 liters of water and infused for 24 hours. Then the infusion is boiled for about 1.5 hours and cooled. The resulting decoction does not need to be diluted.

Kefir or sour milk

As an effective and safe measure to combat powdery mildew on gooseberries, if berries have already appeared, treatment with fermented milk products can be recommended. For spraying plantations, 1 liter of kefir or liquid yogurt is mixed with 9 liters of clean water. The procedure is carried out three times, maintaining four-day intervals between irrigations. This tool also helps in the fight against late blight.

Iodine

To prepare the solution you will need:

• 10 ml of medical iodine;
• 10 liters of water.

The mixture is poured into a container with a spray bottle. The resulting preparation should be abundantly moistened with affected plants. The procedure is repeated after 2 weeks.

Mullein solution

An effective measure to combat powdery mildew is mullein treatment. To get spray liquid:

• 1 part of mullein is diluted with 3 parts of water and infused for 3-4 days;
• the resulting concentrate is again diluted in a ratio of 1:3;
• filter the substance.

Processing is carried out before the opening of the buds, after flowering is completed and before leaf fall.

Soap and soda

Surfactants are added to therapeutic mixtures for better adhesion: this way the agent will linger longer on the surface of the sheet plates. To prepare the solution, you need three ingredients:

• 10 g of baking soda (a tablespoon without a slide);
• 5 g of laundry soap;
• 4 liters of water.

Sick plantings are sprayed in the morning or in the evening, when they are not exposed to direct sunlight.

Brilliant green

The usual "brilliant green", which is in any first aid kit, is effective tool against fungus. To each liter of water add 1 ml of the substance. The resulting solution is treated with leaves, shoots and gooseberry fruits.

baking soda solution with aspirin

To prepare the mixture you will need:

• 10 g of baking soda;
• 1 aspirin tablet;
• 5 g of laundry soap, grated;
• 4.5 liters of warm water.

All components are thoroughly mixed, after which the liquid is placed in a container with a spray bottle. Spraying is carried out every 10-12 days.

Preventive measures

Fungal diseases on plants can be prevented if enough time is given to their prevention. With well-organized care, you will not have to then wonder how to deal with powdery mildew on gooseberries. What to do to avoid adversity?

The correct distance between landings

As mentioned above, insufficient spacing between bushes is an additional risk factor. The infection spreads more easily through such plantings. Therefore, placing the gooseberry on garden plot keep the distance:

• between individual specimens - 1.25 - 1.5 m;
• between rows - from 2 m.

Treatment with a hot solution with potassium permanganate

Gardeners, wondering how to treat gooseberries from powdery mildew in spring, often forget that the ashtray is very sensitive to thermal effects. Irrigation with hot liquid in the spring before the buds swell will help prevent the development of fungi. This will require:

• 1 g of potassium permanganate;
• 10 liters of water at about 90°C.

To process the shoots with a solution, use a small watering can. The action is carried out once, even if the hot mixture does not get on the entire surface of the plant, otherwise the planting can be destroyed.

Timely pruning of bushes

The procedure prevents thickening of the bushes, which provides the culture with good immunity. Immediate removal of areas affected by the fungus helps to localize the infection. Cut branches must be burned. Gardeners distinguish:

• shaping pruning in the spring;
• sanitary (removal of broken branches affected by pests);
• rejuvenating (to stimulate the appearance of young shoots).

In the first year, 3-4 shoots are left, in the second - 8, in the third - 12. By the age of five, the shrub should have 20 well-developed branches. In autumn, plantings are carefully examined, cutting off diseased, damaged fragments.

Cleaning up leaves and rotten fruit

Fallen substrate should be removed and burned in autumn. This is necessary not only for the site to have a well-groomed appearance. The causative agent of the ashtray overwinters in the leaves, beginning to spread through garden plantings in the spring. For cleaning, a rake with frequent teeth is suitable.

Digging the soil in autumn

The procedure is necessary, since powdery mildew spores settle precisely in the upper layers of the soil. Turning earthen layers contributes to the death of pathogens. The shovel should be deepened by 12-14 cm. At the same time, traditional “autumn” fertilizers (superphosphate, dolomite flour). smash large clods not necessary: ​​this procedure should be postponed until spring.

Loosening trunk circles

Soil cultivation with a chopper should be carried out every 20-30 days. Loosening provides oxygen to the root system, reduces the likelihood of fungus damage, accelerates the development of the plant, strengthening its immunity. The procedure also prevents stagnation of moisture in the soil.

Spraying with infusions and special formulations

It was said above that in order to combat ash, gooseberries are treated with a decoction of horsetail or tansy. However, these measures are not only curative. Even if there are no signs of disease on the plants, they can be sprayed once every 2 weeks for a preventive purpose. In addition to infusions, treatment to prevent the disease is carried out using:

• kefir;
• baking soda;
• "greens".

Compliance with fertilizer application requirements

To avoid imbalance nutrients in the soil, top dressing should be applied correctly. Fertilizers containing nitrogen, the excess of which contributes to the appearance of powdery mildew, are usually added to the soil in the spring. If an infection appeared on the site last season, this procedure can be skipped. Instead of this:

• before the leaves appear, manure is applied (2 kg per 10 liters of water), and the surface is also sprinkled with ash;
• in summer, magnesium sulfate (50 g per 1 m²) and potassium humate (20 g per 10 l of water) are added to the soil;
• in the fall, after picking berries, superphosphate (15 g per 1 m²), dolomite flour, are buried in the soil during digging.

Powdery mildew on gooseberries is not a sentence for planting. The disease can be prevented if enough attention is paid to agricultural technology. It is also quite possible to cure the affected shrub if the spread of the infection is stopped. Treatment of gooseberries from the fungus should be timely, then the plant will fully recover.