Red leaves on a gooseberry. What to do if the gooseberries are covered with a brown coating? Actions for prevention

Often, when growing berry crops in his front garden, a gardener is faced with such a nuisance as a white coating on gooseberries. The vast majority of old bushes are susceptible to this defect. This defect is called powdery mildew and is of fungal origin. It is worth noting that this disease can affect not only gooseberries, but also other berry crops, including vegetables.

Below, we will look in detail at how to overcome such a phenomenon as plaque on gooseberries. What signs will indicate to the gardener its appearance, and what measures must be taken to prevent the development of this disease.

Features of the problem

As described above, white plaque on gooseberries is a defect of fungal origin. This disease begins to progress as a result of high air humidity with the onset of warm spring. The problem with combating this defect is that the fungus is resistant to sub-zero temperatures and can withstand wintering quite well in the remains of leaves.

This disease spreads in the following way: spores are spread throughout the green mass in such a way that parts of the gooseberries are covered. At first it’s just a white coating that can be easily wiped off.

Further, it begins to gradually darken and transform into a brown coating, which has a more dense structure. At the same time, the gooseberry foliage begins to curl, wither, and then completely fall off.

It is also worth noting that when a white coating appears on a bush, such a symptom does not always signal the development of a fungal defect; sometimes it can also be a sign of developing septoria. If it is septoria, then the signs will be as follows:

  • from the end of May, a coating forms on the foliage;
  • at first it is a gray coating with a brown edge, and then transforms into a whitish coating with a dark edge;
  • by August, diseased foliage begins to fall off, while the growth of new branches slows down, and the berries grow tasteless and deformed.

As can be seen from everything described above, the white coating has two origins. Therefore, the methods of struggle will be different.

Is it possible to prevent white plaque?

The best way to fight against it is through preventive measures. This approach copes best with defects of fungal origin.

It is worth noting that plants that have been growing in the front garden for several years and those that have been recently transplanted are most susceptible to such ailments. But young seedlings are considered the most resistant to various diseases.

You can save a plant from white plaque in the following way:

  • performing timely pruning, which is recommended to be done in early spring and autumn when the leaves begin to fall;
  • promptly get rid of all broken and damaged branches that are taken out of the area and burned;
  • all cuts on the bush are treated with slaked lime;
  • in the autumn, when all the foliage falls, it must be completely collected, taken out of the area and burned;
  • during the growing season, all affected leaves are carefully excised and destroyed;
  • in early spring, as soon as the frosts have subsided and the buds are not yet visible, each bush needs to be doused with thoroughly hot water, about 75 C;
  • regularly carry out potassium and phosphorus fertilizing.

All these manipulations will help prevent infection with a fungal disease, and if they are performed correctly, then treatment will not be required. At the same time, it is very important to emphasize that in the spring, nitrogen fertilizers are not used as fertilizer. Such drugs will do more harm than good to the berry bush.

How to overcome the white plaque that appears

If the gooseberries are covered with a white coating, then you should not despair and think why the infection occurred, but urgently need to take action. So, the fight for berry crops begins with the complete elimination of all affected parts of the bush. Then, when all diseased shoots and foliage are excised, treatment with chemical or natural preparations begins.

It is worth noting that today there are a lot of recipes than, but the following are most often used:

  1. Pour 7 kg of wood ash into two buckets of hot water, mix everything well and let it brew overnight. Then, the resulting solution is filtered and each bush is thoroughly sprayed with it before flowering, as well as after it.
  2. The collected weeds are finely chopped and placed in a bucket. Then pour boiled hot water and leave for several days, stirring everything periodically. Next, the finished mixture is filtered and the resulting mixture is processed. It is worth noting that with the help of such a product, the treatment of plaque on gooseberries is carried out in the evening.
  3. Another good remedy that will help get rid of white plaque on gooseberry leaves is regular mullein. A solution is made from it as follows: pour a bucket of organic matter with three buckets of boiled warm water and mix everything thoroughly. Then, leave it to infuse for three days, stirring it periodically. And when the solution is ready, it will need to be filtered and sprayed with the resulting mixture.

Experienced gardeners often recommend treating this gooseberry disease with regular whey. To do this, you will need boiled water at room temperature and whey. Mix these two ingredients in the following ratio: 10 parts water and 2 parts whey.

This mixture is ideal if plaque was found on gooseberries. Moreover, this solution is ideal as a preventative measure.

What chemicals will come to the rescue?

The gooseberries are covered with a white coating, what should I do? This question is often asked by gardeners, especially beginners who have minimal experience in caring for berry crops. If your gooseberries have a white coating, then you can purchase chemical preparations in specialized stores that will help defeat powdery mildew. The most popular are the following:

Copper sulfate

You can treat gooseberries with this preparation and defeat the whitish coating quickly enough. It is worth considering that with the help of this product, treatment is carried out as a preventive measure even before the buds begin to grow, and then, if necessary, repeated treatment is carried out immediately when this problem is detected.

But at the same time, experienced gardeners say that if we treat it as a preventive measure, then this defect will not bother the plant throughout the entire fruiting season.

Topaz

The next drug is called Topaz. This product, of chemical origin, is in great demand among many gardeners. You need to spray the bush with it in two stages. The first procedure is carried out before flowering begins, and the second manipulation is carried out immediately as soon as the gooseberries fade.

Bordeaux liquid

It is also worth noting that such a liquid can be used at any time, the main thing is to carry out the treatment in a timely manner to save the crop.

In this case, the gardener decides on his own what to spray the affected shrub with. The only important thing is that all the drugs described above are very effective when the gooseberries are covered with plaque. And perhaps the most important thing is to start treating the berry crop in a timely manner. Otherwise, the fight for the harvest may be lost.

Conclusion

Gooseberries are one of the healthiest and most delicious crops that many gardeners grow in their front gardens. And in order to reap a good harvest from bushes that are not affected by the white defect, it is necessary to carry out timely preventive measures and treat each bush separately. And in this case, the question of how to get rid of it and how to fight it will not become relevant.

If gooseberries have been growing at your dacha for a long time, you got the bush from your grandmother, and she once took cuttings from her great-grandmother, most likely you are familiar with the problem of powdery mildew firsthand. This whitish coating on the leaves and stems, brown spots on the berries, which can be cleaned off if you try, but it’s still not very pleasant. Old varieties are good because they are tasty and definitely have not undergone any modifications, but the problem is that they are not at all resistant to various diseases.

I don’t want to get rid of a tasty variety, but I don’t want to defeat powdery mildew. At the same time, it would be nice to do without toxic pesticides. There are effective folk remedies for the prevention and control of powdery mildew. And they have been tested in practice. To help gardeners, we publish a table of environmentally friendly means of protection against powdery mildew on gooseberries.

According to science, the gooseberry disease, which everyone calls powdery mildew, is called spheroteca. It affects all parts of the bush: leaves, shoots, ovaries, berries. At first, the plant is covered with a white coating, and over time it turns into a brown coating, reminiscent of felt. Affected shoots become bent, leaves curl, and fruits do not fill well.

The disease is caused by a genus of fungi with the same name, which release spores twice: in spring and summer. Therefore, in a good way, you need to carry out three treatments of gooseberries against powdery mildew: before flowering, immediately after flowering and before leaf fall. In this case, it is better not to spray the bushes, but to wet them, trying not to miss a single branch. In addition, it is important to remember that the fungal spores overwinter in the litter, that is, it is necessary to spill the same product on the soil around the bush.

Folk remedies for powdery mildew on gooseberries

Means Proportions and method of preparation Processing Features
Ammonium nitrate
50 grams of ammonium nitrate are dissolved in 10 liters of water. Gooseberries are treated after flowering.
Aspirin+Soda
1 tbsp. soda, 1 aspirin tablet, 1 tsp. dishwashing detergent or liquid soap, 1 tbsp. vegetable oil is dissolved in 4.5 liters of water. The bushes are treated with this composition once every two weeks during the season.
Water
The water should be brought to a boil. In early spring, before the snow melts, gooseberry bushes are doused with boiling water directly from a watering can.
Haupsin or trichodermin ()
150 ml. The drug is dissolved in 10 liters of water. Spray gooseberries during the growing season at intervals of 2 weeks.
Ash
Option 1. One kilogram of ash is poured into 10 liters of water and left for 7 days, stirring occasionally. Then carefully pour the infusion, leaving sediment at the bottom.

Option 2. 300 grams of ash are mixed with 10 liters of water, brought to a boil and boiled for 30 minutes. Then cool until sediment appears and carefully pour into a clean container.

Option 3. 3 kg. ash is poured with 10 liters of boiling water and left for 24 hours. Then filter.

Spraying is carried out at the end of May - beginning of June three times with an interval of one day. The ash sludge is diluted with water and the soil under the bushes is watered with this mixture.
Soda Ash
50 grams of soda ash are dissolved in a small amount of hot water, then the water is brought to 10 liters and 10 grams of liquid soap are added. Gooseberries are processed twice: before flowering and after flowering.
Kefir or sour milk
1 liter of kefir or sour milk is mixed with 9 liters of water.
Mullein
Mullein is diluted with water in a ratio of 1:3 and infused for three days. Then dilute again with water 1:3 and filter.
Onion peel
200 grams of onion peels are poured with 10 liters of boiling water and left for 2 days. Gooseberries are treated before flowering, after flowering and before leaf fall.
Milk serum
1 liter of whey is mixed with 9 liters of water. Treatment is carried out three times every three days.
Tansy
30 grams of dry tansy are poured with 10 liters of water and left for 24 hours. Then cook for 1.5-2 hours and filter. Tansy decoction is used to treat the ground around the bushes in spring and autumn.
Rotten hay or forest litter
The bucket is filled one third with hay, topped up with water and left for three days. Then again dilute with water 1:3 and filter. Gooseberries are treated before flowering, after flowering and before leaf fall.
Soda
2 tbsp. soda and 50 grams of grated laundry soap are dissolved in 10 liters of water. The bushes are treated twice: before flowering and after flowering.
Fertilizers
For 10 liters of water you need 20 grams of superphosphate, 50 grams of potassium chloride, 30 grams of urea, 5 grams of potassium permanganate. Gooseberries are sprayed once after flowering.
Fitosporin
Take 100-150 ml. drug per 10 liters of water. The bush and the soil under it are treated in the spring before flowering and in the fall after fruiting.
Horsetail
1 kg. fresh horsetail is poured into 10 liters of water and boiled for 2 hours. The broth is cooled, filtered and diluted with water 1:5. Spray gooseberries during the summer season at intervals of a week.

In conclusion, I would like to say that powdery mildew, like many other fungal diseases, loves moisture, thickened plantings and soils poor in organic matter.

Therefore, firstly, you need to try to regularly cut out old, poorly fruiting branches so that air can freely penetrate inside the bush. And secondly, to heal and enrich the soil with organic matter. Instead of digging under the bushes, weeding out all the weeds and removing the litter (what if there is a fungus lurking there?), it is better, on the contrary, to put tops under the gooseberries (the tops of nightshades are especially good: potatoes and tomatoes) and generously spill them on top with a solution of EM preparations . Beneficial microorganisms will quickly get down to business and “chew” organic residues along with pathogenic fungi.

But also closely monitor his health. After all, they can significantly reduce the yield of our favorite berries, or even lead to the death of the plant.

It should be noted that gooseberry bushes They suffer mainly from the same diseases as currants, but unlike the latter, the degree of damage is much stronger and the speed of spread of diseases is faster.

Therefore, it is very important for us to catch the first signs of the disease in time and take the necessary measures. You can, of course, try to plant in your garden only those new varieties that are resistant to diseases, and ruthlessly get rid of old ones.

But, firstly, each of us has our own favorite variety, which is simply impossible to part with and which is worth fighting for; secondly, probably, such ideal varieties of gooseberries have not yet been bred that would not cause any disease at all.

Therefore, we should not relax, but need to carefully monitor the well-being of our northern grape bushes.

After all, the sooner we notice the first signs of diseases, the much faster we will help the plant cope with them. In addition, in this case it will be enough to use only traditional methods, excluding chemicals.

Gooseberry suffers most from the following diseases: American powdery mildew (spheroteca), septoria (white spot), anthracnose, goblet rust, mosaic.

As you can see, there are enough misfortunes for our gooseberries. And before we look at each of them in more detail, let's talk about prevention.

Prevention and more prevention

Undoubtedly, we all know the golden rule: it is much easier to prevent a disease than to treat it later.

This rule can certainly be applied to plants, and protecting them from pests should also begin with prevention. What preventive measures can we take:

  • strict adherence to the rules of agricultural technology when growing gooseberries;
  • We try to prevent thickening of the bushes and promptly cut out excess, damaged and dry branches;
  • We collect and remove fallen leaves, followed by burning them;
  • dig up the soil under the plant;
  • We plant plants next to the gooseberry bushes that repel pests - marigolds, chrysanthemums, dill, garlic and others;
  • in early spring, you can pour boiling water over the bushes, thereby destroying the spores of fungal diseases that have appeared;
  • Let’s not forget about regular nutrition, which significantly strengthens the plant’s immunity;
  • Spraying gooseberry bushes with a zircon solution in the spring also improves immunity.

American powdery mildew

Symptoms This fungal disease is a real plague for gooseberries, and not only for them, because currants and other plants also suffer from it.

The first symptoms of this scourge may appear in the spring immediately after flowering. Young shoots and leaves begin to become covered with a white, loose coating, which initially washes off well.

Then it gradually moves on to the ovaries and berries, covering an increasing area of ​​them. Every day the plaque becomes more and more dense and, in the end, it begins to resemble brown or dark brown felt.

Damaged shoots begin to bend, stop developing fully, and often dry out altogether. The leaves curl and become brittle, and the berries covered with this coating stop growing, often crack and quickly fall off.

And if we do not start treatment, the affected gooseberry bushes may die within just two or three years.

Moreover, the spores of this harmful fungus are carried by the wind, infecting more and more new plants. They are not afraid of any frost, they feel great in winter on fallen leaves and infected shoots, and high summer temperatures.

That is why the fight against this insidious disease must be waged throughout the entire season - from early spring to late autumn.

Control measures. There are quite a lot of ways to combat this common disease described in the literature. I want to recommend you some of them, which I think are the most effective:

1. Pouring gooseberry bushes with boiling water in early spring partially destroys fungal spores.

2. Then you can treat the gooseberries and the soil around them with a 3% Bordeaux mixture or a solution of soda ash (50 g of soda per 10 liters of water), adding laundry soap for better adhesion of the solution. It is advisable to carry out this spraying before the buds bloom on the gooseberries.

3. It is also good to spray the bushes with an infusion of wood ash (300 g per 10 liters of water), and also add the ash to the tree 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, take 1 part of mullein infusion or rotted manure, dilute it in 3 parts of water and leave for three days. Then dilute the infusion three times with water and filter.
You can also prepare infusions from rotted hay or hay dust, greenhouse soil or forest litter. The effectiveness of these infusions lies in the fact that the bacteria multiplying in them, once on the gooseberry bushes, begin to happily feed on the mycelium.
It is advisable to carry out treatment with these infusions three times per season: the first time we spray it before flowering, the second time immediately after it, and the third time we spray it before leaf fall.

5. Another interesting method - we make the following solution: dilute 1 liter of whey in ten liters of water and add 15-20 drops of iodine. This solution can be sprayed on bushes throughout the season every 10 days.

6. When you pick off the shoots on tomatoes, do not throw them away. They will also help us overcome powdery mildew. We infuse the tomato tops, then add 40-50 g of laundry soap to the infusion and spray the gooseberry bushes with this product. And at the end of summer, when we are already starting to remove the tomato stems, we can cover the gooseberries with them for the winter. This folk method is guaranteed to save you from pests and powdery mildew.

7. In the fall, it is necessary to carefully trim the affected plants, removing the affected ends of the shoots without any pity, collect fallen leaves and burn everything at once, without postponing this matter until later, since powdery mildew spores scatter quite quickly.

8. If the disease has already started, then, in order to avoid its spread throughout the garden, it is simply necessary to use chemical means of protection. These are drugs such as: “Topaz”, “Oxychom”, “Fitosporin” and others. In this case, strictly follow the dose recommended in the instructions for use.

Gooseberry anthracnose

Symptoms. Anthracnose is another fungal disease that primarily affects gooseberry leaves.

Initially, small, blurry dark brown spots appear on the leaves. As the disease develops, the spots merge, the leaves dry out and almost all fall off prematurely. Only at the tops of the growing shoots do three or four leaves remain.

In bushes affected by anthracnose, the growth of young shoots is significantly reduced, the sugar content of the berries is reduced, and one can no longer count on a good harvest.

Control measures. First of all, it is necessary to collect all fallen leaves, since it is in them that the fungus remains for the winter. We burn the leaves immediately.

In early spring, we check for uncollected leaves under the bushes. When the disease just begins, we tear off the affected leaves and spray the gooseberry bushes with a solution of copper sulfate (40 g per 10 liters of water).

If the disease develops dangerously, it is necessary to treat the gooseberry bushes with 1% Bordeaux mixture at least four times. We spray - before flowering, immediately after it, then 12-14 days after the second spraying and the last time we process the gooseberries immediately after harvesting.

White spot or septoria

1 - affected currant shoot, 2 - affected leaf, 3 - drying of leaves due to severe damage, 4 - pycnidia and conidia, 5 - perithecia, bags with ascospores

Symptoms This disease also affects the leaves, on which a large number of roundish grayish spots with a dark border appear. A little later, dark dots appear on the spots; they contain spores of the causative agent of septoria.

Gooseberry leaves begin to curl, dry out and fall off prematurely. After some time, the bushes remain completely without leaves.

Control measures. We fight white spot in the same way as we fight anthracnose, namely: we collect and destroy leaves (in autumn or early spring), at the initial stage we tear off diseased leaves, loosen the soil under the bushes.

We can also increase the resistance of gooseberries to septoria by adding manganese sulfate, copper, boron, and zinc to the soil around the bushes.

Glass rust

1- currant shoot with aecia on leaves and berries, 2- gooseberry shoot with affected leaves and berries, 3- affected sedge leaf with urediniospore pads, 4- sedge shoot with affected leaves, 5- aetia and aeciospores, 6- urediniospores, 7- teliospore

Then they take the form of small glasses. The fungus spends the entire spring and early summer on gooseberry bushes. Then insects and wind carry its spores to the weeds. It feels especially good on sedge.

And then all summer the fungus develops on their leaves and overwinters there.

And in the spring it returns again to the gooseberry bushes, the leaves of which, becoming diseased, become ugly and fall off prematurely. Gooseberries also change, become one-sided, their development stops, and then quickly dry out and fall off easily.

Control measures. First of all, try to plant varieties that are resistant to this disease. When planting, choose higher places on the site so that there is no stagnation of water and where sedge does not grow.

Affected plants must be treated with 1% Bordeaux mixture: first when the leaves bloom, then after flowering and the last time 8-10 days after the second.

Gooseberry mosaic

3, 3a - affected gooseberry leaves, bordering gooseberry veins

The diseases described above can affect both gooseberries and currants and even other plants.

At the same time, our gooseberries also have “their own” disease. This is gooseberry mosaic, which is a viral disease.

The virus can live and develop only in the cells of living organisms. It is spread both by sucking insects, such as aphids, and by herbivorous mites, with the sap of diseased plants, and also through undisinfected garden tools after pruning infected bushes.

Symptoms. When gooseberry bushes are affected by this disease, first of all, a bright yellow pattern begins to appear on the leaves, which is located along the main veins.

The bushes stop growing, bear fruit very poorly, the leaves are small and wrinkled.

Control measures. Gooseberry mosaic is practically untreatable. Bushes affected by the disease must be dug up and burned immediately.

In order for gooseberries to avoid this disease, we will take preventive measures: purchasing and planting healthy seedlings; We treat the bushes against sucking insects in a timely manner so that the disease is not introduced; comply with quarantine measures.

At the end of the article, some general tips for processing plants:

  • We begin treating gooseberries with all these solutions as soon as the first signs of the disease appear with an interval of 10-12 days.
  • If it rains within 5 hours after our treatment, then spraying must be repeated.
  • Two weeks before the scheduled harvest of berries, we finish treating the bushes with all preparations.
  • It is best to treat gooseberry bushes against diseases and pests in the evening or in cloudy weather during the day.
  • When processing, try to generously moisten not only the top side of the leaves, but do not forget about the bottom.

In this article, we got acquainted with various gooseberry diseases and learned how to deal with them. Now we need to deal with our beloved gooseberries, but that’s in the next article.

See you soon, dear readers!

Gooseberries are part of a group of plants characterized by low resistance to certain fungal diseases. Fungal diseases most often lead to drying out of gooseberries. Vigorous gooseberry varieties often suffer from this disease. In the article we will tell you why mold and mildew appear on gooseberries, and how to fight them using folk and chemical methods.

Gooseberries are most often affected by fungal diseases such as:

  • powdery mildew;
  • septoria;
  • anthracnose;
  • rust.

Many diseases develop as a result of poor plant care.

Powdery mildew: types of disease, development and symptoms

The disease powdery mildew (spheroteca) is also popularly known as ash, white thread or white. There are two types of disease:

  1. European powdery mildew - mainly affects the leaves and shoots of gooseberries. On late varieties of gooseberries, the fungus can also develop on the berries. The disease manifests itself in the form of a white coating, which is formed from thin fibers produced by fungal spores. From the initial stage of the disease to the deepest degree of damage, the plaque does not change color and remains grayish-white.
  2. American powdery mildew - mainly affects leaves and berries. A white coating forms on the affected areas. When the plant is deeply damaged, a white coating also forms on the shoots. At the beginning of the development of the disease, the plaque is characterized as white; in the absence of timely treatment, the plaque becomes brown and forms mummies with brown felt.

The development of both types of disease is cyclical in nature and affects gooseberries from the bottom up. The danger of the disease lies in the fact that the affected shoots, berries and leaves crack due to an increase in spore mycelium, which leads to secondary infection of the plant, after which the plant begins to rot and die.

On the affected areas of the plant, a white coating of spores forms, which, when ripened, forms droplets, hence the name “powdery mildew.”

Tip #1. In order to destroy the disease, it is necessary to cut off the affected parts of the plant, which should be burned after removal.

When the plant is completely removed, the soil is dug deep and phosphorus-potassium fertilizers are applied. Powdery mildew spores are spread by wind, rain, insects, and also by humans when caring for plantings. Powdery disease spreads quickly, especially during summer, develops in low-lying and shady areas, and affects not only gooseberries, but also currants.

Stages of development of powdery mildew

Powdery mildew affects gooseberries in the spring, when the flowering stage ends. The development of the disease has several stages:

  • Initial stage: a light grayish coating appears on the shoots and leaves. The structure of the plaque is loose. At this stage of disease development, plaque (spore mycelium) is easily removed.
  • Progressive stage of disease development: spores grow and form on gooseberry ovaries. The plaque acquires a viscous structure.
  • The last stage of the disease is characterized by the formation of a dense cocoon on the affected areas, which envelops the areas, turning them into “mummies”. The threads of the cocoon darken and become brown. Under the cocoons, the plant organs become deformed, curl, and dry out. The growth and growth of shoots stops, the leaves and ovaries fall off. The plant weakens, the stem part and plant organs crack, and as a result of secondary infection they rot, which leads to the complete death of the gooseberry.

Experienced gardeners recommend carefully assessing your ability to care for the plant when planting gooseberries. For those who do not have the opportunity to monitor gooseberries, but have a desire to grow them on their plot, gardeners suggest planting hybrid varieties of gooseberries and certain varieties resistant to fungal diseases. "

Disease-resistant gooseberry varieties

Below are varieties characterized as resistant to fungal diseases:

Fungal disease anthracnose: features of the development of the disease

Anthracnose is a fungal disease; a humid climate is a favorable environment for development. It mainly affects leaves, shoots and petioles of gooseberries; in rare cases, anthracnose appears on berries.

Brown spots form on the affected areas, which grow at tremendous speed and spread to healthy areas of the plant. In the absence of timely treatment, ulcers form on the affected leaves and petioles. At this stage, the growth and development of young gooseberries stops. Old gooseberry bushes stop bearing fruit, the growth of young shoots stops, and the leaves die off.

Anthracnose spores are not afraid of frost and overwinter in fallen leaves. Disease persistence in the external environment for up to 2 years

The spread of the disease can be stopped by neutralizing the accumulation of spores, which form in the form of mycelium on the leaves of the plant, and after they fall, they continue to form new spore communities in fallen leaves and in accumulations of plant waste. That is why the fight against anthracnose begins after removing fallen leaves.

At the first signs of anthracnose, the plant should be immediately treated with a solution of copper sulfate, for the preparation of which it is enough to mix 30 g of copper sulfate with 5 liters of water. The solution is used to treat not only affected gooseberry bushes, but also healthy ones.

Fungal diseases of gooseberries: brown and white spot

Septoria is a fungal disease known as brown spot. Affects leaves and shoots of gooseberries. Shapeless grayish spots with a brown edging around appear on the affected areas. Spots on leaves and shoots develop very quickly, covering the entire leaf or shoot within a month. The affected areas dry out, curl and turn brown.

Septoria develops at air temperatures above +20C.

To neutralize the disease, it is necessary to remove the infected parts of the plant. After removal, treat the gooseberries with chemicals.

Tip #2. To increase the resistance of gooseberries to a disease such as septoria, experienced gardeners recommend applying fertilizers with a high content of zinc, manganese and copper to the soil twice a year.

White spot - a fungal disease that affects only gooseberries, and only the leaves. The development of the disease occurs as a result of poor plant care. With poor care, photosynthesis is disrupted in gooseberry leaves, resulting in the formation of dry white spots with a dark edge. If you examine the affected leaf under a microscope, you can see spores on the surface of the white spots that are located in the tissues of the leaves.

White spotting leads to leaf drop and also reduces the plant's resistance to other diseases. The harm from such a fungus is minimal and mainly indicates the need for better care.

Pillar rust: types of fungus, disease development

The disease can be caused by two types of fungi; the color of the spores resembles rust. The first type of disease is caused by a fungus such as Puchinia. The development of the disease begins in early spring. Puchinia fungi attack the lower part of the leaf and unripe gooseberries.

At the initial stage of the disease, yellowish growths form on the affected areas, later the growths degenerate and form pits in which mycelium actively begins to develop, from which orange spores appear. This type of disease occurs in the middle and northern zone. Carried away by wind and rain.

The second type of disease is caused by a turf fungus that forms specific reddish cushions on the lower parts of the leaves. By autumn, such pads turn brown, persist through the winter and re-develop in early spring. The disease has a cyclical nature of development; in the absence of timely treatment, the growth of new shoots and productivity decreases.

If anthracnose is not treated, the gooseberry completely dies out in 1.5-2 years

Traditional methods of combating fungal diseases of gooseberries

Gooseberries are mainly processed during the fruiting period. During this period, chemical treatment is not the best option, as it is an unsafe method. Experienced gardeners during the fruiting period of gooseberries recommend fighting diseases using traditional methods.

There are 5 main folk recipes that effectively eliminate fungal and mold diseases of gooseberries:

  1. Manganese solution - used to remove fungus from berries and plant leaves. The solution allows you to stop the further development of the fungus, and also disinfects areas of the plant that are not affected by fungus and mold. Potassium permanganate is diluted with water - 10 g of potassium permanganate per 15 liters of water. Treatment with the solution proceeds by spraying. The procedure should be carried out once every 10 days, until harvest.
  2. Decoction of wood ash. To prepare the decoction, you need to mix half a bucket of wood ash with 10 liters of water and boil for 20-30 minutes. The resulting decoction should be diluted with water in a 1:1 ratio. In order for the solution to stick to the gooseberry leaves and berries during processing, laundry soap is added to the solution. Treat with a spray bottle.
  3. Manure solution. Fresh manure is poured with cold water. Mix half a bucket of manure with 10 liters of water. The solution is stored in a dark place for 3 days. The solution must be thoroughly mixed daily. After 3 days, the finished mass is filtered and diluted with water in a ratio of 1:10. Mix with water before processing. Treat once a week by spraying.
  4. Organic infusion. To prepare, mix half a bucket of rotted hay in equal quantities with forest litter and add greenhouse soil. The mixture is soaked in water with the calculation of one part of the mixture in three parts of water and put in a warm place for 3 days. The finished infusion is applied by spraying.
  5. Mullein infusion. Half a bucket of cow dung is mixed with a bucket of warm water. The mixture is put in a warm place for three days, after which the infusion is filtered and again diluted with warm water in equal proportions. It should be diluted with water before spraying the plant. Treat the plant once every 5-6 days. If the disease has completely affected the gooseberry, then it is not advisable to use traditional methods of treatment; in such situations it is necessary to resort to the help of fungicides.

As a preventive measure, gooseberries are treated with antifungal solutions before and after flowering, as well as before leaf fall.

Chemicals to combat fungal diseases

After timely pruning of the affected shoots and leaves of the gooseberry, they are treated with chemicals. To combat fungal diseases of gooseberries, the following fungicides are used:

  • “Topaz” is a systemic chemical that suppresses fungal diseases during the period of active growth of spores and their release from the fruit unit. Can be used in any weather conditions. The effect can be observed in the first 2-3 days, protection lasts up to 15 days. The main advantage of the drug is that it is non-toxic. Used mainly in spring before and after flowering.
  • "Fundazol" is a broad-spectrum active ingredient. Used on the hottest days; the higher the air temperature, the more effective. The drug is low toxic. After treatment, the protective effect lasts from 10 to 25 days. The drug penetrates through the roots and leaves of the plant. Used in any climate zones. Treat before flowering and after harvest.
  • "Topsin" is a systemic drug used for preventive and therapeutic purposes. When processing a plant, the substance is absorbed by the root system. The result is visible within 3 days. Protection lasts for a month.
  • “But” - suppresses the growth and development of pathogenic fungal formations. Used as a therapeutic and prophylactic drug. Treatment can be carried out in any weather conditions by spraying. The protective effect lasts for half a month.

The table shows the most widely used chemicals for fungal diseases of gooseberries.

Chemical substances Use for diseases Processing method
Topaz Powdery mildew, septoria, rust, anthracnose, scab. Requires treatment 2 times a year. Treated by spraying, carried out in dry, windless weather. The drug is diluted in water in a ratio of 2-3 ml of the drug per 10 liters of water.
Fundazol Powdery mildew Used as a disease prevention. In case of disease, the plant is treated by root treatment, as well as by spraying the above-ground part of the plant. Gooseberries are processed 2-3 times per season. The drug is mixed with water in a ratio of 1 g per liter of water.
Topsin Powdery mildew, anthracnose Gooseberries are treated 2 times a year before flowering and after harvest by spraying. The drug is mixed in a ratio of 10 g per 10 liters of water. "
But Powdery mildew, anthracnose Gooseberries are processed 2 times a year. At the end of flowering and during fruiting. The interval between treatments is 7-8 days. The bushes are treated by spraying; 0.15 g of the drug is used per 1 liter of water.

Preventive control measures

It is much easier to prevent any plant diseases than to try to neutralize them. Preventive measures include:

  • Follow the agrotechnical rules for growing gooseberries. When planting, maintain the required distance between plants. Carry out thinning procedures in a timely manner to remove damaged and weak leaves and shoots. It is important to remember that thickening is one of the main reasons for the development of fungal diseases.
  • Timely collection of fallen leaves and accumulation of other vegetation, which create favorable soil for the development of fungus and mold. After harvesting, loosen the soil well.
  • Treat the plant with boiling water twice a year; boiling water destroys the spores.
  • You can avoid infection if you increase the gooseberry's resistance to diseases. To do this, in spring and autumn the plant is fed with a solution called “Zircona”.
  • Throughout the year, feed the plant not only with nitrogen fertilizers, but also with phosphorus-potassium fertilizers. It is important to know that an excess of nitrogenous fertilizers leads to fungal diseases. "

Frequently asked questions when combating fungal diseases of gooseberries

Question No. 1. Is it possible to get rid of powdery mildew by removing only the infected areas of the plant?

Removing only the affected gooseberry organs without adding potassium fertilizers will not give the desired result. After treatment for 2 years, it is necessary to apply potassium fertilizers in October and April.

Question No. 2. At what time of year are gooseberries susceptible to powdery mildew?

Summer is the most favorable time of year for the development of this disease. At this time, the spores grow and are released from the mycelium. Hot and dry weather contributes to the development and spread of this disease. In summer, it spreads more often when watering plants.

Question No. 3. To which fungicides do fungal diseases develop resistance and immunity?

All chemicals intended to combat fungal diseases of gooseberries are characterized by the emergence of resistance. To prevent disease resistance and addiction to drugs, fungicides should be alternated.

Question No. 4. Are there environmentally friendly fungicides?

There are biological drugs. These include Fitosporin, Pseudobacterin and Gamair.

Question No. 5. What fertilizers increase resistance to fungal diseases?

Phosphorus-potassium fertilizers increase resistance to pathogens of fungal diseases. Nitrogenous fertilizing should be excluded during the period of budding and fruiting of gooseberries. An excess of nitrogenous fertilizers promotes the proliferation of spores of fungal diseases.

Common mistakes when dealing with fungal diseases of gooseberries

  1. Treatment is carried out without removing the affected plant organs
  2. Affected leaves and shoots are removed, but left in a general pile of vegetation on the site.
  3. When applying fertilizers, use only nitrogenous fertilizers.

Among all the effective folk methods of combating powdery mildew on gooseberries, the most effective method of control is the replacement method. The essence of this method is to replace mold and fungal bacteria with more active but beneficial microorganisms.

Natural dairy products - milk or whey - are used to replace harmful bacteria with beneficial microorganisms. Mix the dairy product with water in a ratio of 1:10 and spray the gooseberries. When microorganisms colonize areas of the plant, they eat fungal and mold spores, thereby destroying the disease.

Seeing gooseberries and a white coating on the berries, gardeners, faced with this problem for the first time, give up in bewilderment. Yes, it's a bush disease called powdery mildew. At first, the coating is less noticeable: an almost invisible “frost” is visible on the berries and leaves.

These are spores of a fungal disease that grow and infect the plant more and more. If the bush is not treated, the white coating becomes more and more expressive and collects into whole fluffy flakes, affecting the berries and leaves. Then it changes in color - it becomes brown with black dots (fruiting bodies of mushrooms). The bush begins to lose its shoots - they dry out and the berries fall off. The following summer, the disease progresses even more as the spores multiply more intensely, and as a result the plant dies.

What to do if the gooseberry fruits are covered with a white coating of powdery mildew?

If, after examining the gooseberries, you notice a white coating on the berries only in the initial stage, it is necessary to take the necessary measures to stop the development of the fungal disease. At the initial stage (as in our case), the best method is spraying. Active substances for this purpose can be ordinary laundry soap and copper sulfate.

Take 20 g of copper sulfate and 150 g of laundry soap per 10 liters of water. It is better to dilute in not too hot water. Pour the thoroughly mixed mixture into the prepared soap solution in a stream. can be grated on a coarse grater. When spraying, special attention should be paid to areas affected by spores. To prevent the occurrence of the disease, it is advisable to spray the entire gooseberry (in this case, a white coating will not appear at all), as well as the soil around it.

Gooseberries by their nature are an unpretentious shrub, but they need to be prevented against fungal diseases regularly, every spring. If we talk about currants, fungal spores often infect its leaves and young shoots, while gooseberries are damaged: they wrinkle, dry out and fall off. If the bush is neglected and your berries are already clearly visible, you need to act immediately. All shoots heavily damaged by mushrooms should be cut off and burned. Do not be afraid that the bush will not give you fruit this year. But you will save him from an insidious disease -

Prevention of the disease

To prevent plaque on the berries from appearing next summer, in early spring thoroughly treat the bush with the above mixture or use special ready-made preparations for spraying - “Cumulus”, “Tiovit Jet” or “Vectra”.

You can purchase them at any hardware store or supermarket.

For the purpose of prevention, start spraying the plant at the moment when the first young leaves appear. Treat not only the young shoots with the selected preparation, but also the ground around the bush itself. The second spraying should be carried out during the flowering period, the third - during the formation of the ovary. When the berries ripen, use more gentle preparations for prevention.