Powdery mildew on gooseberries - control and prevention measures.

Sferoteka, or in a simple way - powdery mildew, appears in all its glory on gooseberry bushes in June. A white moss-like coating covers berries, leaves, shoots, mostly young ones. The disease can not only deprive the summer resident of the harvest, but also completely destroy the bushes. How to process gooseberries from powdery mildew in the spring, which means give a greater effect - these questions concern gardeners, experienced and beginners.

What kind of "chemistry" to spray gooseberries?

A fungus that winters well in the root zone - the causative agent of powdery mildew - awakens in the spring and rapidly sheds spores, infecting neighboring plants and soil. Although the disease enters its full "color" in early summer, all preventive measures are carried out in the spring, as soon as the snow melts.

If powdery mildew was noticed on the site last season, in the first days of spring, measures must be taken to curb the spread of the sphere library, and preventive treatment of gooseberries is carried out. Experienced gardeners may notice signs of damage even before bud break.

The following drugs are popular in the fight against fungus among summer residents.

• "Nitrofen". Spraying is carried out strictly before the opening of the kidneys. For processing, 200 g of the drug is diluted in 10 liters of water.
• "Topaz" - a solution for spraying is prepared by diluting the contents of 1 ampoule of the product with 10 liters of water. Plants are treated 2-3 times before flowering with an interval of 2 weeks. The drug is moderately toxic to humans and pets. It is not used near water bodies.
• "Tilt KE" - suitable for the prevention and treatment of already diseased bushes. It has the ability to penetrate into the cells of the surface tissues of plants, which increases its duration. The spray emulsion is prepared at the rate of 0.4 ml per liter of water. The result is obvious within a couple of hours after application. The drug is not used if there is an apiary or fish ponds nearby.

Also for treatment and prevention use "Emistar Extra", "Vitaros", "Skor".

It is possible to process gooseberries before the buds bloom, with proven means:

• copper sulfate - 80 g / 10 l of water;
• iron sulphate - 30 g / 10 l of water;
• ammonium nitrate - 50 g / 10 l;
• potassium permanganate - 1.5 g / 10 l of water.

Simultaneously with the treatment of the shrub, the funds are sprayed on the ground.

At the stage of bud formation, it is effective to use copper oxychloride, dissolving 30 g of the drug in 10 liters of water.

For the prevention or treatment of powdery mildew on gooseberry bushes, colloidal sulfur is not used, since it causes loss of leaves in the plant.

Chemical preparations of the same name are not used for more than 2 years in a row, since the mycelium can adapt to adverse conditions.

Biofungicides

Spraying gooseberry bushes with biofungicides is carried out when the daytime temperature is above 15 ° C. It is possible to apply them at all stages of the growing season. Effectively work against powdery mildew "Planriz", "Fitosporin-M", "Pseudobacterin-2", "Trichodermin".

An excess of nitrogen in top dressing increases the sensitivity of gooseberries to the causative agent of the disease.

Folk remedies to combat the sphere library

Application folk remedies in the prevention of the disease is no less effective than the use of chemical or biological drugs. But the old recipes that came out of the people are completely safe for people, birds, pollinating insects and other inhabitants of the garden plot.

A feature of the use of folk remedies on gooseberries is that the bushes are not sprayed, but each shoot is abundantly moistened.

• Watering with boiling water

The procedure is carried out as soon as the snow melts. Previously, all debris is removed from under the bushes. Exposure to temperatures above 60 ° C is detrimental to the spores of the sphere library, very often such a simple procedure is enough to completely get rid of the causative agent of the disease.

• wood ash

Ash - good remedy against a number of gooseberry pests (moth, aphids, sawfly, snails, slugs). At the same time, it serves as a supplier of calcium, potassium, phosphorus, and reduces the acidity of the soil.

For spring processing, they take dry ash, sift it. Dusting bushes is carried out at the rate of 15-20 g for each bush. At the same time, the ash is poured into the soil under the root (300 g / m 2) when digging, spilled with water, and dry earth is poured on top.

During the spring, four or five gooseberry treatments with ash are carried out, but already in liquid form. An infusion prepared at the rate of 300 g of ash per liter of water is kept for 5 days, then the shrub is abundantly sprayed.

• soda ash

Before flowering and immediately after its completion, gooseberry bushes are treated with a solution of soda. First, 50 g of the product is diluted in boiling water, then water is added to a volume of 10 liters, 1 tbsp. l. liquid detergent.

• soda with aspirin

Prepare a solution for spraying from 1 tbsp. l. soda, 1 aspirin tablet, 1 tsp. liquid soap, 1 tbsp. l. any vegetable oil, 4.5 liters of warm water. Gooseberry treatment begins from the moment the buds open, repeat every 2 weeks.

Zelenka, common for a home first-aid kit, also helps to get rid of the fungus. 2 drops of antiseptic are added to a bucket of water, gooseberries are sprayed.

• Mullein

The solution for processing is prepared as follows: 1 part of rotted manure is diluted with 3 parts of water, infused for 3 days, filtered, 3 parts of water are added to 1 part of the infusion. The product is suitable for treating plants before and immediately after flowering. Similarly, use rotted hay or straw.

• Whey, kefir or sour milk

A liter of dairy product is diluted with 9 liters of water. Spraying is carried out three times during the week on young leaves. To increase the effectiveness of the solution, add 10-15 drops of iodine to it.

• onion peel

200 g of raw materials are boiled for 10 minutes in 10 liters of water, let it brew for 2 days, filter, squeeze the husk into an infusion. Processing is carried out before flowering and after it ends.

• Tansy

Dry leaves and flowers (300 g) are poured cold water(10 l), insist 2 days. Slowly simmer for 3 hours, strain. The resulting solution is sprayed on the ground under the bushes after spring digging.

• horsetail

100 g of dry grass is soaked in 10 liters of water, after a day of infusion, boil over low heat for an hour. The cooled broth is diluted with water 1:5. Gooseberries are treated with horsetail from early spring until the end of leaf fall.

Spraying gooseberries with fertilizers immediately after the end of flowering performs two functions at the same time: it feeds the bush along the leaf and prevents infection with powdery mildew. The solution is prepared from 20 g of superphosphate, 50 g of potassium chloride, 30 g of urea, 5 g of potassium permanganate, 10 l of water.

How to properly treat gooseberries from powdery mildew?

The first treatment of gooseberry bushes is carried out strictly before the opening of the kidneys. To do this, select a chemical fungicide or folk remedy, including watering hot water. The term of the second treatment is the beginning of flowering, the use of biological products or products prepared according to folk recipes is optimal. The third spraying - after flowering is completed. Apply biofungicides or folk methods.

Shrubs are processed in the following order:

1. For the procedure, choose a dry cloudy windless day or the afternoon hours of a sunny day.
2. Carefully spray the crown, making sure that the product is sprayed on both sides of each leaflet - upper and lower.
3. Similarly, the side parts and the base of the bush are treated.
4. Water the soil under the gooseberry and around it with a healing solution.

It is advisable to simultaneously treat plants and soil in nearby beds.

Agricultural practices

It is difficult to achieve a stable positive result with the treatment of shrubs alone. It is also important to observe the simplest agrotechnical rules:

• thinning shrubs, timely cutting of old branches that give few berries;
• maintaining cleanliness under the bushes, regular removal of debris;
• refusal of nitrogen fertilizers.

Some gardeners successfully use the dry remains of garden and garden plants to combat the powdery mildew pathogen. The trunk circle is covered with tops, watered with a solution of the EM preparation. Beneficial microorganisms feed on spores and mycelium of the sferoteka with pleasure.

A positive result in curbing the spread of spores of the sphere library is given by sowing under the bushes of doctor plants - garlic, marigolds (tagetes), dill, parsley, mint. The first two also protect plants from pests, flowering marigolds and spices attract beneficial insects.

Gooseberry protection from powdery mildew is a constant process, the lightest spores are regularly carried by the wind. Spring processing of bushes protects berry bushes from pathogens introduced in autumn. In order to fully protect the garden from the spherical library, you need to constantly monitor the condition of the bushes, prevent them from shading, thickening, spray them with the optimally selected composition in due time, and cut out shoots with signs of damage with a firm hand. Compliance with the whole range of measures will preserve the harvest of gooseberries and the health of all plants on the site.

Gooseberries have a bright, unique taste and contain a huge amount of vitamin C. white plaque on a shrub, may indicate the presence of powdery mildew on the plant. This type of fungus develops rapidly, infecting other plants, as a result, it can destroy them. Therefore, you should learn how to deal with powdery mildew on gooseberries and when prevention should be carried out.

How to recognize powdery mildew

Powdery mildew is a spherotek fungus that spreads through spores, falling on vegetation from neighboring plants that suffer from it. It affects not only gooseberries, but also currants, cucumbers and other crops. Humid weather and a temperature of 17-28 degrees contribute to its development.

The main symptom of powdery mildew is a whitish-gray coating on fruits and leaves. It is quite thin and looks like dust at the beginning of the disease, but over time it becomes denser, begins to blacken. Small balls appear on the surface of the leaf Brown color- these are the fruiting bodies of the fungus-sferoteka. Powdery mildew can be seen already during the blooming of the plant, then on ripening berries and new shoots.

How powdery mildew spreads

The leaves that are sick begin to dry out, and the shoots become crooked at the ends, darken and die. Most often, the disease affects leaves and shoots that are near the ground. But over time, the infection rises gradually higher and infects the entire plant. If you do not figure out how to deal with powdery mildew on gooseberries, if berries have already appeared, they will crack and rot.

IN winter period The sphere library is located on the tops of the gooseberry shoots of the current year. Favorable conditions contribute to the development of the fungus, during which there is an active release of spores. Further, the disease spreads throughout the plant, inhibiting its vital activity. Affected bushes become crooked and stop growing. Powdery mildew should be controlled, both on gooseberries, currants, and other plants that are susceptible to this disease.

Factors affecting the development of powdery mildew

Powdery mildew fungus begins to spread when high humidity in warm weather. Most favorable conditions for its growth is a moderate air temperature, while the humidity should be about 90%. During hot days, when the thermometer shows values ​​above 28 degrees, the fungus slows down its development and begins to die.

The degree of development of powdery mildew is highly dependent on the climate in the season in which it appears on the plant. This is related to weather conditions which may vary over several years. In a period of two to three days to a week, the disease affects all young growths and ovaries. In a hot year, when there is little rain, the spores of the fungus do not develop well, so summer residents can enjoy a rich gooseberry crop.

The following factors influence the spread of powdery mildew:

the use of some soil disintegrants for growing plants;

distance between gooseberry bushes;

excessive watering, etc.

Powdery mildew affects plants that grow in low places in the garden faster and more abundantly. The soil breathes worse there, and water often collects in the lowlands, which is a fungus ideal conditions for development.

Summer residents themselves can also provoke the appearance of outbreaks of the disease on their vegetation. They can heavily flood gooseberry bushes, and also use dark materials as mulch. When using such agricultural practices, the humidity and air temperature directly near the plant increase, which favorably affects the fungus and its reproduction.

Also, some insects can be the cause of the disease. Leaves that have been eaten or shriveled are the most vulnerable to fungus. The appearance of a large number of shoots can cause excessive thinning and improper pruning.

How to deal with powdery mildew on gooseberries

In order to get rid of powdery mildew, first of all, you need to cut off all the diseased parts and burn them. If this is not done, then they will accumulate a large number of harmful spores, in the spring they will infect new branches, as well as other shrubs. It is important to know how to deal with powdery mildew on gooseberries. In case of disease, plants are treated with fungicides at least a month before harvest.

Why powdery mildew appears

Powdery mildew spores are always present in the soil. They are found extremely rarely, because they begin to manifest themselves only in certain conditions. In sunny and warm weather, good watering and feeding plants, the fungus in rare cases can affect the shrub. When the temperature drops to 12-15 degrees, which lasts for some time, powdery mildew actively begins to manifest itself.

So, let's highlight the main factors that contribute to the infection of plants:

Wet, cool weather high humidity air about 80%;

excessive nitrogen content in the soil;

Too densely planted plants;

the soil was initially very dry, and then flooded with water;

watering the plant occurs even if upper layer land is not yet dry after the previous irrigation.

Such conditions are favorable for the spores of the fungus, in which case they wake up and can infect other plants. It is worth noting that they are able to be transported quite quickly with the help of wind or water. Another option for their distribution is the clothes and skin of a gardener who, in contact with an infected plant, transfers the disease to a healthy one.

What activities are carried out in the fight against fungus

The easiest way is to take preventive measures in time than to treat gooseberries from powdery mildew later. Strict execution certain rules will help you get good harvest berries. They begin to fight powdery mildew on gooseberries, both in autumn and in early spring.

Measures to combat the fungus are divided into:

agrotechnical;

natural and chemical means for external processing;

preventive methods.

Such measures are aimed at improving the plant's own protective capabilities, as well as at the fastest maturation of their integumentary tissues.

Disease prevention

In order to avoid the appearance of powdery mildew, you must:

· periodically thin out the plants;

pluck the lower leaves as they are in contact with the ground;

Water the plants when the soil is dry;

Do not get carried away with nitrogen fertilizers;

Feed plants with phosphorus-potassium mixtures.

In early spring, before the trees bud, gooseberries are poured with boiling water. This procedure is carried out instantly, using a watering can. They pour over the branches completely, without lingering on one of their sections. Such a quick exposure to boiling water will not harm the plant, but powdery mildew spores will have time to die. You can also use a household steam cleaner.

Powdery mildew treatment

To effectively cure the disease, the mycelium and spores of the fungus should be removed.

How to deal with powdery mildew on gooseberries?

stop all spraying;

Do not feed those gooseberry bushes where the fungus is already manifesting;

Make the best possible lighting of plants;

thin out planted bushes, get rid of dried leaves and branches;

In plants planted in pots, you need to update the top layer of soil;

Water or spray the gooseberries and the ground around them with a fungus remedy.

Can be used special means or self-produced substances.

How to deal with powdery mildew on gooseberries with folk remedies

Soap emulsion from soda ash:

liquid soap - 5 grams;

soda ash - 25 grams;

hot water - 5 liters.

It is necessary to add soda ash to hot water and stir the composition until it is completely dissolved, adding there gradually liquid soap. After the mixture has cooled, process the gooseberry bushes and the soil near them (its upper layer). The procedure should be done at least 2 times every week.

Decoction of horsetail:

fresh horsetail grass - 100 grams;

water - 1 liter.

The plant is placed in water for a day. Then it is boiled for 2 hours. When the broth has cooled, it is filtered from the grass. Store the infusion in a cool place, away from sunlight and light for a week. Before applying the product, it must be diluted with water 1:5. Treat gooseberry bushes every 5 days, doing the procedure 3-4 times.

Soap emulsion from vitriol:

• soap - 50 grams;
• vitriol - 5 grams;
• water - 5 liters.

Dissolve in different beakers warm water vitriol and soap. Then both products are combined, gradually pouring vitriol into the soapy solution, constantly stirring the resulting mixture. The diseased plants are treated with the prepared agent 2-3 times every 7 days.

Powdery mildew chemicals

Often used in the treatment of various fungal infections, topaz is a fungicide most commonly used by gardeners. Its main active ingredient is penconazole. For spraying gooseberries, dissolve 1 ampoule in 10 liters of water and 5 liters for flowers. Apply only a fresh solution, evenly distributing it throughout the plant. It is processed every 2 weeks, since its protective properties end after this time. Topaz is dangerous to fish and moderately toxic to humans and animals.

Tilt CE - systemic fungicide, which is used as a medicine and prevention of fungus. The active ingredient is propiconazole. It is a concentrated emulsion. The tool is able to suppress the formation of spores of the fungus, which prevents the development of the disease. It can get into the tissues of the plant, which makes it moisture resistant. It has a long duration of action, at elevated temperatures the effectiveness of the product is enhanced.

The emulsion is prepared shortly before treatment at a concentration of 0.4-0.5 ml. per liter of water. Do not use it at temperatures above 29 degrees and humidity less than 60%. The agent protects plants for about 3 weeks, and a noticeable result occurs after 2 hours. The drug poses a danger to fish and bees.

Weak spots of powdery mildew

Before you fight powdery mildew on gooseberries, you should take into account that the disease is fungal in nature. Three methods of plant treatment are used: agrotechnical, chemical, and agrochemical. When using the first method, you must immediately cut off the places where the fungus accumulates, and also do a planned pruning of the shoots before and at the end. growing season plants. It is better to do preliminary prevention of such a phenomenon as gooseberry powdery mildew. It is not too early to fight the disease in the spring, with the advent of heat, you need to start freeing the bushes from damaged and old branches, and the ground from last year's foliage.

It should be borne in mind that mushrooms form spores 2 times a year. Therefore, gooseberries need to be processed before and after its flowering, as well as when autumn comes. It is better to carry out the procedure in the evening, generously watering the entire plant and the soil under it. To do this, use a broad spectrum sprayer, carefully irrigating the wrong side of the gooseberry leaves. Before you fight powdery mildew on gooseberries, you need to remove its affected areas even before you start processing the plant.

If the shoots are formed correctly, they will be strong and will be able to withstand powdery mildew. Gooseberries should be fed with potash and phosphate fertilizers. Avoid the use of nitrogen fertilizers, they inhibit the growth of shoots, which leads to their defeat by the fungus. If a large area with plants has been damaged, then strong chemicals should be used.

You should start fighting powdery mildew, both on gooseberries and other plants, even with the onset of spring. Using natural methods or chemical means, bushes should be regularly treated with them. Also, experienced gardeners recommend timely treatment of the disease and its periodic prevention. It is necessary to fight powdery mildew on gooseberries, both in June and in autumn, after the active growth of the plant is completed.

Yesterday I read a lot about this disease in the internet. Here's what we liked:

I spray the plants with an ash solution. I was convinced that the method is effective, reliable and, I affirm, completely destroys the disease. Fortunately, wood ash is always at hand.
I take about 1 kg of clean sifted ash and stir it in 10 liters of water heated in the sun. I insist the solution for 3-7 days, stirring occasionally. Then carefully pour into a clean bucket, without filtering. In this very light solution, before spraying the plants with it, I add a little soap to better adhere to the leaves. To speed up the preparation of the solution, you can put the container on the fire and boil, stirring, for at least 30 minutes, and then, without filtering, cool and, as soon as the solid particles settle to the bottom, drain the solution into a clean bowl.
After preparing the solution, I immediately proceed to spraying gooseberries and black currants. The tip of the sprayer - with a sprayer. The solution must not flow. I spray the plant from above, and then from all sides, to moisten the leaves both above and below, and all the shoots, not missing a single one. If there is no sprayer, you can just take a basin, pour the solution into it and dip the bushes into the basin so as to thoroughly moisten all the leaves and branches. I process the plants in the early evening. If the treated plant has been exposed to rain, then the operation is repeated. I spray the plants three times, every day or every other day. I dilute the thick mass remaining in the solution to 10 liters with water and water the bushes with it.
You might be thinking what is so special about it? The fact that I process plants not when they are sick and already covered with a white powdery coating, but before the onset of the disease, I am ahead of its onset. Prevention. We know that this disease appears at the end of May - beginning of June. At this time, I spray the bushes.
I'll give you an example. I had a gooseberry bush of the Avenarius variety, severely affected by powdery mildew. It was terrible to look at him. I chose the time, otherwise all hands did not reach, prepared an ash solution and sprinkled the plant with it as described above, repeated the treatment in the second year. He also processed other currant and gooseberry bushes. Avenarius has completely recovered, has a good growth, bears fruit well and has not been sick for three years.
With such spraying, I kind of kill three birds with one stone: I destroy powdery mildew, give root and foliar top dressing. I also treat plants prone to powdery mildew: zucchini, pumpkins, phlox and others. I don't have this infection in my garden now. I highly recommend this method of plant protection.
For example, an infusion of grass and celandine roots is actively used for spraying bushes against scale insects and aphids: 100 g of dry grass is infused in 1 liter of water for 2 days.

7. A decoction of tomato leaves acts on sucking pests. 4 kg of finely chopped tops are poured with water in an amount of 10 liters and boiled for 30 minutes over low heat. The broth is cooled, filtered, then 2-3 liters are diluted with 10 liters of water, add 30 g laundry soap and sprayed

8. Tomatoes growing in the aisles of the gooseberry will protect it from the moth and sawfly. Affected shoots become twisted and eventually dry out. Affected leaves curl, become brittle, stop growing. Affected berries do not have time to ripen, they simply crack and fall off the green bush. The result of such a disease is the lack of a crop and young growth, and within a few years the death of the entire plant.

Powdery mildew (or sphere library) is fungal disease, which begins to spread in the spring with the onset of heat by spores. By the way, this disease comes from America, so it is often called "American powdery mildew" in the literature. Well, again, trouble is on our heads from the American continent. Colorado beetles they don't have enough. Actually, as already mentioned, this is really a bad disease, which should not be passed by. But despite all its seriousness, powdery mildew is quite easy to deal with.

Here we can distinguish two areas of action - agrotechnical and chemical, which give a good result in the aggregate.
For those who in no way recognize the use of chemistry in their area, agricultural practices(including folk recipes) may be sufficient. But if the disease still raged too much or the gooseberry plantations are extensive, then, perhaps, you should not give up chemicals. Moreover, literally one spraying with them is enough, while folk recipes will have to be resorted to not two or three times per season, but more, especially if warm and humid weather contributes to the spread of powdery mildew.

Powdery mildew PREVENTION:

1. Pruning gooseberry bushes in autumn or early spring contributes to good development bush and helps to resist various diseases, incl. and powdery mildew. During pruning, be sure to remove the branches affected by the disease, and then it is better to burn them or take them away from the site and bury them deeper.

2. During the entire growing season (i.e. spring and summer), the shoots and berries found infected with the disease should be removed if possible. It is believed that the spores of the disease hibernate on the affected shoots, and sometimes on fallen leaves. Therefore, in early spring, last year's foliage from under the bushes should be removed.

3. In early spring, when the snow has just melted around the bushes, and the threat has passed severe frosts, but strictly BEFORE the buds swell, it is good to pour hot (+90) water over the gooseberry bushes. In such water, potassium permanganate can be dissolved up to Pink colour or soda (1-2 tablespoons per 10 liters of water). Such a "hot shower" is good as a prophylaxis against many fungal diseases, and on blackcurrant, they say, it also helps with spider mites.

4. As fertilizers, use only potash (which includes, for example, ash) and phosphorus. They contribute to the resistance of gooseberries to powdery mildew. But it is better to refrain from nitrogen fertilizers. Nitrogen can cause the shoots to fail to mature and become more susceptible to powdery mildew as a result.

These methods of prevention are useful to use in combination.

RECIPES FOR TREATMENT of powdery mildew with chemistry and folk remedies:

1. In early spring, BEFORE the gooseberry buds swell, spray the bushes and the litter around them (last year's grass, leaves) with a 1% solution of copper sulfate (100 g of copper sulfate per 10 liters of water).

2. Magazines and literature recommend using chemical drug"Topaz" (according to the instructions). If necessary, spray with this solution twice - BEFORE flowering and immediately AFTER flowering. You can get by with one spraying - immediately AFTER flowering. I have tried this drug in practice and can confirm its effectiveness.

3. An excellent preparation for the fight against powdery mildew is "HOM". This is a kind of substitute for Bordeaux mixture. Bushes are sprayed with a solution of HOM (0.4%, i.e. 40 g of HOM per 10 liters of water) BEFORE the gooseberries bloom. Despite the fact that "HOM" - copper-containing drug, it can be used in combination with pesticides. That is, we take 40 grams of HOM and dilute it in a small amount of water. Then we take ampoules of "Fufanon" or "Decis" (calculation according to the instructions attached to the preparations) and also dilute in a small amount of water. Then these two solutions are mixed together and brought to 10 liters of water. Spray BEFORE flowering.

4. 150 g of laundry soap + 20 g of copper sulfate per 10 liters of water.
Laundry soap is rubbed on a grater with large holes. Copper sulfate is first dissolved separately in hot water, and then poured in a thin stream, stirring constantly, into the soap solution room temperature. The resulting soap-copper emulsion should be bluish in color, homogeneous in consistency, without flaking. Spray IMMEDIATELY AFTER FLOWERING, or in the worst case, immediately after fruit set.

5. Here are a number of drugs recommended in various literary sources (though I have not tested them): Vectra, Skor, Cumulus, Abiga-Peak, colloidal sulfur.
"Thiovit Jet" (20-30 g per 10 liters of water) is characterized, like other sulfur preparations, by a protective and eradicating infection effect on early stages powdery mildew development. It is also used on currants.

6. 50 g of soda (2 tablespoons) + 50 g of laundry soap per 10 liters of water. Soap is rubbed on a grater with large holes. All this is thoroughly soluble in water. I don’t spray the bushes with this solution, but I water it directly from the watering can through the strainer nozzle, and also water the ground around the bushes. Good prevention. This procedure should be done BEFORE flowering, as soon as the leaves begin to bloom, and IMMEDIATELY AFTER FLOWERING. If necessary, you can repeat the procedure 2 more times with an interval of 7-10 days.

7. Daily infusion of ash - 3 kg of ash per 10 liters of water. The ash is poured with boiling water and left for a day, then strain the resulting infusion and spray the bushes with it before and after flowering. This procedure is usually repeated 2-3 times with an interval of 7-10 days. One bush consumes 2.5-3 liters of liquid. I don’t really like this method, because I don’t like to mess around with ash in this way. And besides, for me, ash is primarily important as a fertilizer for cabbage, strawberries, onions and other crops. Therefore, for the treatment of gooseberry powdery mildew, I do not use it. Note - one liter jar holds 500 gr of ash.

8. And one more way to deal with powdery mildew. Take 200 g (1 glass) of urine and dilute in 5 liters of water. The resulting solution is immediately sprayed with bushes. This spraying is carried out immediately AFTER the gooseberry blossoms. The procedure is repeated 3-4 times per season with an interval of 7-10 days. This recipe was shared by one of the readers of the magazine "Plant farming". I tried it, it helps.

Of course, I do not use all the treatment recipes at once in one season. I choose the most convenient recipe for me at the moment. For example, this summer I resorted to a solution of baking soda and laundry soap (point 6). I watered my bushes before flowering and immediately after.
So I think that to choose one of the recipes and carry out two sprayings: the first before flowering, and the second right after, and this will be quite enough to defeat powdery mildew.

It must be said that among the gooseberries there are varieties that are resistant to powdery mildew.
And if you don’t want to get involved with this disease at all and spend your precious time on all kinds of spraying there, then it’s better to choose just such varieties and breed them in your area.
Here are some varieties that are resistant to powdery mildew:
"Kolobok" (tested in practice, this bush grows next to the local gooseberry, which is covered with white bloom every year, and at least he needs something without any spraying there)
"Ural grapes" (also tested the resistance of this variety to powdery mildew on personal experience)
"Kuibyshevsky"
"Grushenka"
"Finnish"
"Senator"
"Harlequin"
"African"
"Houghton"
"Masheka"
"Anniversary"

In general, it has been observed that thornless gooseberry varieties are almost not subject to powdery mildew. So when choosing a variety, you should pay attention to the presence or absence of thorns.

But there are varieties that are prone to powdery mildew:
"Seedling Lefora" (I get sick every year, I always have to spray)
"Date fruit"
"Triumphal"
"Golden Flame"
"Prunes"
"Russian"

Another useful rule- when buying seedlings, one must be very careful and not take those that are in doubt, covered with an incomprehensible coating and somehow do not look very good.

In conclusion, I would like to say that many plants suffer from powdery mildew - trees, flowers, vegetables. But, apparently, for each plant species there is some separate powdery mildew spore fungus, which spreads only on it and nowhere else. In other words, if your gooseberry is sick with powdery mildew, then, for example, cucumbers planted nearby will not become infected with powdery mildew from gooseberries. Gooseberries have their own powdery mildew, which is not transmitted to other crops, cucumbers have their own, flowers have their own, apple trees also have their own, etc.

A rich harvest for all!

The author of the text and photo is Katerina Shlykova (an amateur gardener since 2003) there is quite a lot of literature. I want to recommend you some of them, which I think are the most effective:
1. Early spring dousing of gooseberry bushes with boiling water partially destroys the spores of the fungus.
2. Then you can treat the gooseberries and the soil around it with a 3% Bordeaux mixture or a solution of soda ash (50 g of soda per 10 liters of water), adding laundry soap there, for better adhesion of the solution. This spraying is desirable to carry out before bud break on the gooseberry.
3. It is also good to spray the bushes with an infusion of wood ash (300 g per 10 liters of water), and also to bring the ash into the trunk circles, distributing it evenly and mixing it with the ground.
4. The bacterial method of combating this insidious disease also gives very good results. To do this, we take 1 part of the infusion of mullein or rotted manure, dilute it in 3 parts of water and insist for three days. Then we dilute the infusion three times with water and filter.
You can also prepare infusions from rotted hay or hay dust, greenhouse soil or forest floor. The effectiveness of these infusions lies in the fact that the bacteria that multiply in them, once on the gooseberry bushes, begin to feed on the mycelium with pleasure.
It is desirable to carry out the treatment with these infusions three times per season: the first time we spray before flowering, the second time immediately after it, and the third time we carry out the treatment before leaf fall.
5. Another interesting method - we make such a solution: dilute 1 liter of serum in ten liters of water and add 15-20 drops of iodine. This solution can be sprayed bushes throughout the season every 10 days.
6. When cutting off stepchildren on tomatoes, do not throw them away. They will also help us overcome powdery mildew. We insist on tomato tops, then add 40-50 g of laundry soap to the infusion and spray the gooseberry bushes with this remedy. And at the end of summer, when we are already starting to harvest the stalks of tomatoes, you can overlay gooseberries with them for the winter. Such folk method guaranteed to protect against pests and powdery mildew.
7. In autumn, it is necessary to carefully prune the affected plants, removing the affected ends of the shoots without any pity, collect the fallen leaves and burn everything at once, without postponing this matter for later, since powdery mildew spores scatter rather quickly.
8. If the disease is already running, then, in order to avoid spreading it throughout the garden, it is simply necessary to apply chemical means of protection. These are drugs such as: "Topaz", "Oxyhom", "Fitosporin" and others. At the same time, strictly observe the dose recommended in the instructions for use.
I myself will only treat gooseberries.

Powdery mildew of 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 covered with a whitish powdery coating, which is very easily erased. 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 long time, forming a set of 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 vigorous activity 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.

When powdery mildew overcomes gooseberries, measures to combat this disease are selected carefully. After all, most often she is noticed when berries are poured on the bushes. It is unlikely that pesticides can be used when treating gooseberries from powdery mildew in the summer, so we have prepared several folk recipes for the treatment and prevention of this disease.

Powdery mildew on gooseberries: control measures from the piggy bank of folk remedies

As a rule, powdery mildew is found on gooseberries by gardeners in the summer, when there are already berries, what to do in this case? What to spray? After all, fungicides have a waiting period of 3 weeks, and the berries ripen earlier. Let's go over the arsenal of folk remedies so as not to harm ourselves and the bush:

1. Infusion of onion peel. take onion peel, pour water and insist for several hours. Spraying with this solution can be used either as preventive measure or only in the very early stages of the disease.
2. wood ash solution. Dilute 1 liter of ash in a bucket of boiling water. Preferred wood ash. Also add liquid or laundry soap to the solution so that it does not immediately wash off the leaves. Spraying the entire shrub is carried out after two days - this solution should be well infused. The treatment of gooseberries with an ash solution is carried out twice with an interval of 10 days.
3. Soda solution. in a bucket hot water dilute 50 grams of ordinary baking soda. Liquid soap is also added here, or a few shavings of ordinary household soap - this component is so that the solution does not just “stack” from the leaves, but lingers on it, destroying the fungus. After the solution has cooled, you can begin processing currant leaves. The procedure is repeated after 7 days.
4. Serum solution. To prepare the solution, take whey, kefir, any other fermented milk product, mix with water in the proportion of 1 part whey and 10 parts water. Spraying with this solution is carried out similarly to soda, only more often - once every three days for a sufficiently long time. The action of the solution is such that the serum forms a dense film on the surface of the leaf, which does not allow the fungus to “breathe”, and thereby “suffocates” its development. But for such an action, it is necessary that the film wrap around the sheet as long as possible, so the procedure should be carried out only in dry weather.
5. Infusion of garlic arrows. Pour half a bucket of collected arrows with water and leave for 24 hours. Spraying the leaves with a ready-made infusion must be carried out on both sides of the leaf.
6. Infusion of horsetail. Such an infusion is prepared for a day. First, a concentrate is made - 100 g of horsetail are taken per 1 liter of water, soaked, left for 20-24 hours. After this, the infusion must be boiled for 2 hours. As soon as the concentrate cools, it is filtered. Since it is intended for multiple uses, the storage of the solution is carried out in the refrigerator. For spraying diseased bushes, the concentrate is diluted with water as 1/5, the procedure is carried out only 4 times every three days.
7. Solution with rapeseed oil. 10 mg of oil is diluted in a liter of water, approximately 1% solution is obtained. Must be used immediately after preparation. Rapeseed oil effectively fights the fungus, significantly reducing its number.
8. A decoction of tansy. It is rather a prophylactic that does not destroy the fungus on the bushes, but those spores that are in the soil and can spread to the plant. Approximately 300 grams of fresh tansy is placed in a bucket and poured with water, insisted for a day, then brought to a boil and left for 2 hours over low heat. After the solution has cooled, they spill the soil near the gooseberry bushes. It is advisable to carry out such a procedure only in the spring.
9. Dry mustard solution. On a bucket of boiling water take 2 large spoons of dry mustard. After the solution has cooled, spraying can be carried out.
10. Iodine solution. For the treatment of bushes, a mixture of 10 liters of water and 10 cubes of iodine is used. It will take two sprays with an interval of 3 days.
11. Mullein infusion. To prepare the infusion, take 1 part of mullein and 2 parts of water. Usually make a bucket. It is necessary to insist 4 days, after which the concentrate for spraying will be ready. In no case should gooseberries be sprayed with pure infusion! It is imperative to dilute with water in a ratio of 1/10, only after that it is possible to treat gooseberries against powdery mildew. You need to spray in the evening, after the sun has disappeared. Otherwise, the shrub may get burned.

Effective ways to prevent and treat powdery mildew

Prevention of powdery mildew on gooseberries helps prevent the development of the disease and preserve the harvest of berries.

1. Light transmission of landings

Do not thicken gooseberry plantings. The distance between adult bushes should be at least one and a half meters. Break the berry bush only in well-lit areas of the garden and vegetable garden. Thin out bushes in spring and autumn, removing shoots growing inwards.

2. Hot shower with potassium permanganate

In early spring, after the snow melts (before the buds swell), pour all the branches of the gooseberry with hot water (temperature about 90 ° C) with the addition of potassium permanganate crystals (the solution should have a pale pink tint). Instead of potassium permanganate, you can use baking soda(2 tablespoons per bucket of water) Such a shower prevents the development of all fungal diseases and destroys the laying of eggs of some pests.

3. Cropping

We advise you to carry out sanitary pruning of gooseberry bushes in early spring and autumn. All shoots with signs of disease, as well as dry, broken and weak branches, are subject to removal. In the summer, cut off all the branches on which signs of powderiness have appeared. Plant residues after the procedure must be disposed of by incineration.

4. Cleaning up litter and carrion

In summer, it is required to completely select all the berries from the ground under the bushes and bury them in a secluded corner or take them out of the site. In autumn, the near-trunk circles of bushes should be cleaned as much as possible from leaves in which fungal spores hibernate.

5. Autumn digging

After harvesting plant residues, it used to be customary to dig up the soil around each bush to a depth of at least 12-15 cm. During such digging, fungal spores will be underground or on the surface and freeze out during the winter.

Loosen the soil under the bushes regularly. Do not let the branches of plants touch the surface of the earth, for which make props or wooden fences.

7. Spraying

Sick bushes should be sprayed in the spring before the leaves begin to bloom with a biofungicide tank mix. Another option is a solution of soda ash, it works well against the mycelium of the phytopathogen. The solution is prepared by dissolving 50 g of soda and the same amount of grated laundry soap in a bucket of water.

8. Treatment with ash infusion

Plants can be irrigated with infusion of plant ash throughout the growing season. When the first symptoms of the presence of mycelium appear, the plants are treated, trying to ensure that the solution gets on both parts sheet plates. To prepare this natural fungicide, 1 kg of ash is poured into a bucket of hot water and the liquid is infused for about 4 days. After straining, 30 g of soap is added to the infusion to improve the adhesion of the composition. The event is performed three times with an interval of 1-2 days.

9. Bacterial prophylaxis

The infusion of rotted mullein contains bacteria that inhibit the vital activity of the powdery mildew pathogen. Humus is poured with water 1:3, allowed to brew for three days, diluted with settled water 1:2 and used for spraying infected bushes.

10. The right fertilizer

Do not use nitrogen preparations (urea, ammonium nitrate, fresh manure and bird droppings), since an excess of nitrogen increases the susceptibility of plants to fungal spores. If you have not abandoned chemistry, add potassium-phosphorus complex compounds under the bushes, for example, potassium chloride and superphosphate. But fertilizing from vegetable ash is safer.

Carefully caring for gooseberries, you can fully enjoy the juicy fragrant berries every summer. And although popular measures struggles given by us act softer, but coupled with preventive methods you will get rid of such a disease as powdery mildew on gooseberries (and certainly not be poisoned by pesticides).