Fight against diseases and pests of red currants. Diseases and pests of red currant

Similar articles

Red currant: diseases and pests

Direct sowing of field crops - an effective direction of resource conservation in growing agricultural crops is the introduction of "No-till" technology - the use of direct sowing, i.e. sowing stubble

Control measures

Currants are widely distributed throughout the Soviet Union. This fungal disease is expressed in the appearance of very small brown spots on the leaves (conidial sporulation of the fungus). The leaf tissue turns brown, the leaf dries up and falls off prematurely. Anthracnose also affects leaf petioles, young shoots, and peduncles. Anthracnose reaches strong development in the 2nd half of summer (end of July - August). Mature leaves are distinguished by a particularly high density and intensity of infection.

During the summer, the disease is spread by fungal spores. It reaches its maximum development in the middle of summer. The development of the disease is facilitated by high temperature and relative humidity, thickened plantings. The fungus overwinters on affected shoots and stems.

... As we know, currant diseases deprive us of the harvest, for example, outbreaks of anthracnose in wet years cause a loss of 75% of the crop and a decrease in it next year. When plants are affected by terry, losses can range from 30% to 100%. Therefore, the agrotechnical method should be the main one in protecting plants from diseases and pests. If the site for planting healthy planting material is correctly chosen, the most resistant varieties are selected and high agricultural technology is maintained for the care of soil and plants, then the number of pests and diseases is significantly reduced.

In addition to the defeat of aphids, leaves on currants turn red and due to the harm caused by anthracnose, a fungal disease of plants. This disease causes a decrease in the growth of shoots on the bush, as well as a significant decrease in the yield and taste of berries. At the onset of the disease, small red spots or blooms with shiny tubercles appear on the leaves of red or black currants. Then these spots merge and become brown, and the leaves on the bush dry and fall off prematurely. The disease even spreads to the fetus.

Fruit tree pests

For propagation, take layers and cuttings of healthy plants.

In the fall, red currants require special care. Diseases and pests often hibernate on fallen leaves and in the soil, so the ground around the bush should be cleared and dug up several times.

How the sophisticated gardener is delighted by the juicy, transparent-scarlet bunches, with which the red currant shimmers under the summer sun! Diseases and pests, however, can not only deprive a bush of fruit, but also completely destroy it. Careful care of the plant from the moment it is planted will protect the berry. The bushes should not be thickened, the optimal distance between them is at least two meters, then the plant is sufficiently illuminated by the sun and ventilated. It is obligatory to remove old branches.

Enemies among insects

Planting currants away from coniferous forests. Autumn collection and destruction of fallen leaves or their careful incorporation into the soil. Three times spraying with Bordeaux mixture: early in spring, before bud break; after flowering and after harvest. Good care of plants (fertilizing, watering and applying phosphorus-potassium fertilizers in the fall).

The fungus penetrates into the leaves mainly from the lower side.

Septoria causes mass drying of currant leaves and their premature fall. Diseased shoots give poor growth and small berries. The disease develops especially strongly in wet years and in thickened plantings.

fb.ru

Diseases and pests of red currant

If you had red spots on currant leaves in your garden in the previous season, then in the spring, before budding, it is imperative to abundantly spray the bushes and the soil under them with a solution of copper sulfate. Before and immediately after flowering, currant bushes can be sprayed with a 1% solution of Bordeaux liquid. Re-spraying can be done two weeks after harvest.

1. How to get rid of aphids
2. Choose varieties that are most resistant to pests and diseases.
3. Spheroteka
4. Reverse
5. Poppy decorative Poppy - PapaverL. More than 100 species are known, originating from Central and Southern Europe, Asia, Australia. In floriculture, oriental poppy and holosteel poppy are more often used. Poppy

Rogersia Rogersia - Rodgersia A. Gray. The genus includes 6 (8) species distributed in the mountains of China and Japan. Plants with scaly creeping rhizomes, 100-150 cm high. Valued as

Use healthy planting material. Cuttings should only be taken from healthy shrubs that have not shown symptoms of the disease for 3 years. It is necessary to inspect the planting of currants at the end of flowering; if affected flowers are identified, the bush should be completely uprooted and burned. Individual affected branches are cut out only at the initial stage of their infection, but this does not guarantee the bush will get rid of the disease.

Disease control measures.

Fruiting bodies of the fungus overwinter on shoots and unopened leaves. The first signs of damage can be seen in late May and early June. At this time, a white loose bloom appears on the underside of the leaves, consisting of chains of spores. They are easily carried by wind, insects, rain, infecting young growing organs of the bush throughout the summer.

In the fall, it is better to destroy all plant residues and dig up the soil under the bushes. If the leaves of the currant turn red the next year, then the treatment of fungal diseases of the currant must be repeated.

In summer, looking more closely at the currant leaves, you can see red and brown spots, swellings on their underside. A novice gardener immediately has a question: why do the leaves of red and black currants turn red? And this happens because the leafy gall aphid, a well-known pest of the garden, has settled on the bush. Warm winters and hot dry summers contribute to its rapid spread.

Regularly, carefully inspect the bushes. At the first sign of pests or diseases, take action immediately.

supersadovnik.ru

Red spots on currant leaves

A disease in which shoots and leaves become covered with a white bloom is also called powdery mildew. Unripe berries turn out to be shrouded in a layer of felt and, of course, are not suitable for food. To save the currants, it is necessary to spray the bush with a special solution at the first sign of the spheroteka. For ten liters of water, take 50 grams of soda ash and 40 grams of shavings of laundry soap.

This viral disease is also called terry. All types of currants are ill with it. You can recognize it by the bizarre shape of the flowers: the petals are made threadlike, which makes the inflorescence double. The virus settles in the sap of plants, so it is almost impossible to help the bush. If you find only a few crippled inflorescences, you can cut off the branches on which they have blossomed, and if the flowers are bubbling en masse, then the bush must be uprooted and burned.

Methods for dealing with aphids on currants

The concept of weeds and their harmfulness Weeds are plants that infest agricultural land and damage cultivated plants. Plants belonging to cultivated species, but not cultivated in this field,

Goblet currant rust

The black currant varieties Golubka, Primorsky Champion, Zoya, Koksa, Minai Shmyrev, Belorusskaya Sweet, Seedling Golubki are less affected by anthracnose. Varieties Nadyadnaya, Vystavochnaya, Leah Fertile are affected moderately and weakly, but in some years they can be severely affected. The old Neapolitan variety is very strongly affected by anthracnose. Due to severe anthracnose disease, this variety often has weak bushes and low yields. Variety Bradthorpe is usually slightly affected, but in some years it is moderately affected.

Planting only healthy planting material from the nursery.

First, lightening of tissues is noticeable on the upper side of the leaf at the site of the lesion. Under favorable weather conditions (temperature 16-18 °, relative air humidity 70-80%), 2 weeks after the appearance of these first signs, the disease covers all young leaves, petioles and the top of the shoot.

Diseases of the currant photo

Treatment of currants from reddening of leaves

Black oblong eggs of aphids overwinter on currant branches. In the spring, with the beginning of bud opening, the larvae of the pest emerge from the eggs and, moving to the lower part of the young leaf, suck the juice out of it. After that, red, burgundy spots and swellings appear on the leaves of the currant. These bulges are blown out and visible from afar. And the sheet itself becomes twisted and ugly.

A radical method of dealing with currant terry is the destruction of the bush.

womanadvice.ru

Diseases of the currant | HitAgro.RU

Aphids do great harm to currants. In the spring, its larvae get out of the buds, colonize the bush and suck the juices from it. On the back of the leaves, red bubbles bulge, the shoots bend, curl and dry out. Aphids are bred by ants that feed on their sweet "milk". The fight against aphids begins in early spring with the treatment of the bushes and the soil around them with a 3% nitrophene solution (300 grams of the product for a ten-liter bucket of water). Decoctions from yarrow, horse sorrel, dandelion, marigolds, as well as from the tops of tomatoes and potatoes will also help. Spraying is excluded only during the flowering period of currants and stops 5 days before picking berries.

Hello! The article

At the beginning of summer, the growth of shoots is suspended, the young leaves of the currant coarse and are no longer so attractive to aphids. When female aphids become winged, they fly to other plants in the garden. Insects live on them until the end of summer, reproduce and give rise to colonies of aphids. And then they again fly over to the currant and lay eggs on it in order to start destroying the bush again in the spring.

A heavily affected bush must be cut to soil level. And over the next year, as the young shoots grow, treat the plant several times with acaricides, for example, neoron.

Caterpillars of currant glass gnaw through "tunnels" in the core of the branches, thereby oppressing the plant. Damaged branches must be cut off immediately.

Septoria

Your red currant is infected with goblet rust. Often sedge is the cause of the disease of berry bushes with this disease, therefore, if sedge is adjacent to currant bushes in your country house, then you will have to part with it, completely removing it from the site. The next year, before blooming currant leaves, in the budding phase and immediately after flowering, currant bushes must be treated with 1% Bordeaux liquid. In addition, gardeners faced with this problem advise the following recipe without chemicals. They take 200 g of tobacco dust and pour 2-3 liters of hot water into it, insist for 2-3 days. At the same time, make an infusion of 1 cup of garlic cloves, pouring them with 2 liters of hot water. Both infusions are poured into a 10-liter bucket, having previously filtered them, and adding 1 tbsp. l. liquid soap, 1 tsp. ground black or red (hot) pepper. The solution is infused for 1-2 hours, filtered and sprayed on the plants Cultivation of ducks At the present time, ducks are used more and more in the poultry farming as a reserve for meat production. From one duck in the spring-summer period, you can get up to 100 eggs and grow from them Disease control measures

White spot of currant leaves (septoria)

Currant varieties heavily affected by anthracnose have reduced winter hardiness.

Digging the soil under the bushes in autumn or early spring.

In mid-July and early August, fruiting bodies of the fungus are formed on the mycelium, which remain to winter on unopened leaves and shoots. In spring, they are the primary source of infection. Fruit bodies that overwintered on fallen leaves, as a rule, die. The source of infection in the spring can be mycelium, which is preserved on living parts of plants.

Currant diseases

If you notice aphids on the currants before the berries ripen, then it is better not to use chemical preparations to combat the pest. Use decoctions and infusions from herbal remedies: chamomile, yarrow, tobacco or makhorka, garlic and others. For better adhesion of the infusions to the leaves, it is imperative to add 40 grams of laundry or tar soap to 10 liters of water. The prepared solution should be sprayed over the currant bushes. Pay more attention to the underside of the leaf and young shoots, where the most pests are located.

If red currants are damaged by leaf gall aphids, red swellings form on the upper side of the leaf. With severe damage, the leaves dry out and fall off, and the yield also decreases.

The larvae of the gooseberry moth braid bunches of berries with cobwebs and suck out the juice. The fight against the pest consists in the autumn digging of the soil, into which the pupae of the insect go to winter, and in the treatment of the bush before flowering with an infusion of shag or tobacco leaves.

The fungus "draws" on the leaves abstract compositions of specks with a brown border, on which black dots (spores) are scattered. You can help the plant by spraying with preparations containing copper. The affected branches must be cut off.

Before blooming

Cultivation of watermelons in the country It is not particularly difficult for the inhabitants of Ukraine to grow a watermelon, throughout its territory there are enough warm days a year for a watermelon to ripen. Watermelon is known to be demanding on heat:

Anthracnose currant disease

The same as with anthracnose. A radical means of control is the destruction of sedge.How to deal with this disease.

Timely thinning of thickened plantings.

Control measures

We will consider with you all the main

For prevention purposes, it can be used in the spring, even before bud break, spraying with nitrafen at the rate of 300 g per 10 liters of water. This will help kill the overwintering eggs of aphids and prevent other currant diseases.

The yellow gooseberry sawfly eats leaves. Control methods - spraying with pesticides (preferably on the underside of the leaf).

The red currant will thank its owner with a generous harvest. Diseases and pests will be neutralized by the skillful actions of the gardener, who lovingly cares for his green pets.

Terry (reversion) of black currant

Kidneys. The sediment that remains after filtering is scattered around the bush and slightly dripped. After 2 weeks, when the leaves bloom, they make an infusion of onion husks and spray the bushes with it.

Potato starch production Potato starch production - Potatoes have large starch grains, therefore they are good raw materials for the starch-treacle industry. Starch consists of a large number

It affects black currant leaves. The causative agent is a mushroom wintering on fallen leaves. At the beginning of the harvest, small yellowish spots appear on the upper side of the leaves, and small bright orange pads appear on the lower side, in places of spots. In the future, instead of pads, first orange, then brownish columns of spores are formed, similar to the hairs of a brush. By autumn, the infected leaves are completely covered with the spore brush. Severely damaged leaves fall prematurely, shoots in this case do not ripen well, their winter hardiness decreases, the harvest is lost the next year. In early spring or autumn, after the leaves have fallen, they are sprayed with a 3% solution of 60% nitrafen (30-40 kg / ha, bushes and soil under bushes). In summer, a 0.4% suspension of 80% cuprozan (3-4 kg / ha) and 1% colloidal sulfur (3-4 kg / ha) are used. Sprayed before flowering, then after flowering and after 10-12 days, sprayed for the fourth time after picking berries, while necessarily treating the underside of the leaf. 1% Bordeaux liquid is also used. Agrotechnical measures to protect against diseases are reduced to the collection and destruction of fallen leaves, timely digging and plowing of the soil under the bushes, embedding the top layer to a depth of 10 cm, regular destruction of weeds, thinning of thickened plantings. Spraying with nitrophene solutions (200 g per 10 l of water) in early spring. During the growing season, planting can be treated with 1% Bordeaux liquid: before flowering and after picking berries, if necessary after flowering.

Goblet currant rust

​. ​ Currant diseases with pictures

In addition to these methods, you can fight aphids on currants by cutting off all damaged red leaves and shoots on red currants. Currant glass lays eggs in cracks and mechanical damage to the bark at the base of the shoots. The caterpillars that appeared two weeks later penetrate the branches and gnaw through the passages in the core. The only way to fight is to remove the damaged branches.

Columnar currant rust

The currant has a lot of enemies. They deprive us of crops and often spread diseases that are dangerous for currants.

Currant leaves and shoots become dry, as if burnt. In this case, the bush must be treated with fungicides (antifungal drugs), for example, Bordeaux liquid. Helps in the fight against the pest and copper sulfate.

Thank you very much. I suspected that this is precisely this disease. It is described in the books, but there are no photos. Can't save the berry this year? Muscovy ducks Muscovy ducks or Indo-Ducks are one of the most productive bird species. This type is the most unpretentious of the entire duck kingdom, so it can be safely advised to anyoneColumnar rust develops very strongly on currants, near which Weymouth pine or Siberian cedar, the intermediate hosts of the disease, grow. Primary infection occurs in spring with spores that have overwintered on fallen leaves.

Our favorite berry bushes have many enemies. At all stages of the growing season, the plant can overcome a dangerous disease. We will tell you how not to be left without a crop and how to treat currants from diseases.

Throughout the summer cottage, it is necessary to inspect the plants in the garden in order to detect warning signs in time. Black and red currant bushes look strong and healthy.

However, non-compliance with the conditions of care, as well as exposure to fungal diseases, insects and viruses, can lead to serious illness. In the absence of proper treatment, you can lose the currant crop. And some diseases of black currant lead to the complete death of the bush. In this article you will find currant diseases, descriptions with photographs and treatment methods.

Blackcurrant anthracnose disease

In black currant, the fungus mainly affects the leaves, in red and white - their petioles and fruits. The disease begins to develop in the spring, as soon as the air warms up to 15 ° C. The first symptom is small reddish-brown spots. They gradually increase in size and merge. Leaves and clusters of fruits curl, dry and fall off in the middle of summer. The frost resistance of the bush sharply decreases. Heat and frequent rainfall contribute to the development of the disease. If the summer is dry, anthracnose infestation is practically excluded.

For prevention, the trunk circle is thoroughly cleaned of plant debris and the soil is deeply loosened. Bushes affected by the fungus are sprayed with a 1% solution of copper sulfate or Bordeaux liquid in mid-autumn. The procedure is repeated in early spring, before the leaves bloom. The buds are treated with Topsin-M, Previkur with the addition of any biostimulant (potassium humate, Epin, Heteroauxin).

During the growing season, the bush is sprayed every two weeks with an infusion of colloidal sulfur or wood ash. If the disease manifests itself during fruiting, when the use of any chemicals is excluded, fungicides of biological origin are used to combat it - Fitosporin-M, Gamair. The concentration of the solution and the frequency of treatments are determined by the manufacturer's instructions.

Spheroteka disease (powdery mildew) of black currant

The causative agent is fungi of the genus Sphaerotheca. The first signs of infection of currants and gooseberries with spheroteka are noticeable already in May: the leaves, stems of the bush, and subsequently the fruits are covered with a white bloom (later the color turns brown). Then the berries become smaller and lose their sweetness, diseased bushes do not have time to grow and die. The development of the disease is promoted by high air humidity, dry, nitrogen-saturated soil.

Control measures:

The affected parts of the plant must be immediately cut out and burned, and the bushes themselves must be treated with a fungicide (Fundazol, Topaz, etc.). To prevent spheroteka in the fall, it is necessary to remove fallen leaves, thin out the bushes. Also effective is dusting with wood ash and the use of modern biofungicide Ampelomycin. Spraying is carried out with a 0.5% suspension 3-5 times per season with an interval of 7-10 days.

Powdery mildew disease of black currant

It is found on currant leaves and the tops of new twigs in early summer as a gray-white bloom that can be washed off and wiped off. Gradually, it becomes brown and is no longer washed off. The disease is helped to spread by strong humidity and a temperature of +30.

Black currant leaves, twigs and berries are infected. The berries are tainted by fungus, tasteless and unsuitable for food.

As a result, the infected plant stops growing and withers little by little. The fungus waits out the winter in a heap of fallen leaves.

During the initial stage of the disease, you can get rid of it by pruning and destroying infected branches, treating currant bushes with alkaline solutions:

• ash;
• soap;
• soap and soda;
• iodine;
• from whole milk.

With the massive development of the fungus, the bushes are treated with four spraying with fungicides such as Fitosporin, Topaz, Strobi, Hom:

• before blossoming; after flowering;
• following the picking of berries;
• 2 weeks after the third treatment.

Important! Treatment of all fungal diseases is long-term, spraying is carried out during the entire growing season and preventive treatment is done at the beginning of the next season.

Septoria disease (white spot) of black currant

The causative agent is fungi of the genus Septoria. As with other fungal diseases, the most suitable conditions for the development of white spot are high humidity, insufficient light, thickened plantings. Brown spots appear on the leaves of currants (2-3 mm in diameter), which by the middle of summer brighten in the center, and turn brown at the edges.

Control measures:

Infected leaves and shoots must be removed, then treated with 1% Bordeaux liquid. For prevention, you need to carry out an annual pruning of bushes, dig up the aisles, and remove fallen leaves from the site in the fall.

Blackcurrant rust disease

The currant is attacked by 2 types of this disease: goblet (yellow-orange "warts" are formed on the underside of the leaf) and columnar (reddish small spots on the leaves are characteristic). After some time, the berries and foliage of the diseased bush fall off.

Control measures:

When the leaves are just beginning to bloom, the bushes are treated with a 1% solution of Bordeaux liquid (or other fungicides), then the treatment is repeated during the formation of buds. The final spraying is carried out after flowering.

Terry black currant disease

Description of the disease. An incurable viral disease of the currant. Most often it affects black currants. White and red are more resistant, although some varieties (especially older ones) can be affected by the virus. The source of infection is the bush itself, infected planting material, garden tools that were not processed before pruning. The virus hibernates in the conductive tissues of the bush. Its vectors are kidney mites, aphids, gall midges, berry bugs, spider mites and other pests. The virus is not spread through soil and water. The disease is extremely dangerous, it causes degradation of varietal qualities and leads to the degeneration of currants. Therefore, its second name is currant reversion.

Signs of defeat. A sign by which it can be determined that the bush is infected even before the full picture of the disease appears is the loss of the typical currant smell by the buds, leaves and berries.

External signs of the disease appear in the spring when the leaves are blooming and currants are blooming. The opening of the leaves is delayed, they become three-lobed instead of 5-lobed, along the edges with large sparse denticles. The emerging young leaves are small, dark green, with thickened veins, they do not develop further.

A characteristic sign of terry, which determines the disease, is the structure of the flowers. Usually black currant petals are fused, rounded, white. Diseased bushes have dioecious flowers that become purple in color. Petals, stamens, pistil are deformed, instead of them, scales are formed, resembling tentacles extended forward. Flower brushes are elongated and also take on a dirty pink or purple color. The berries from such flowers are either not tied at all, or a small number of small ugly fruits appear. Sick terry bushes bloom late.

A lot of thin and short shoots that do not have a currant smell appear on diseased plants.

The first signs begin to appear 1-2 years after infection. Prior to this, the bushes have a normal appearance, although the currant smell becomes weak, and the yield is somewhat less than the characteristic for the variety, single berries of an ugly shape. Over time, the signs of terry are growing, the disease develops very gradually.

Sometimes there is an incomplete picture of the disease, in which the tops of the shoots or individual branches are affected. The upper leaves are underdeveloped, small, dark green, three-lobed, asymmetric. The berries on such branches are small and fewer than on healthy plants, sometimes the fruits are not tied at all.

Control measures. Terry is incurable. If signs of disease are detected, diseased bushes are removed and burned, otherwise the entire plantation can be infect. In place of the removed bushes, currants cannot be planted for 5 years, and not only black, but also red and white. The fight against the virus is ineffective because it does not destroy plant tissue, but invades the cell, as a result of which it loses its normal functions and begins to produce the virus. To kill him, you need to kill the cage, and this is impossible without the death of the entire bush.

Disease prevention.

1. If there were diseased plants on the plantation, then before trimming the remaining bushes, garden tools must be treated with alcohol or a strong solution of potassium permanganate.
2. Pest control. They saliva carry the virus to healthy plantings.
3. There is a recommendation to use healthy planting material. But by the appearance of cuttings and seedlings, it is impossible to determine whether they are healthy or infected with terry.

Infected 2-year-old seedlings look quite healthy, only a rather weak smell for black currant can alert. The disease manifests itself only during the growth and development of the bushes. To prevent the disease, varieties resistant to terry are planted: Memory Michurin, Dubrovskaya, Binar, Nara, Primorsky champion, Leah fertile, Zhelannaya. The varieties of black currant are unstable to the disease Zagadka, Ojebin (Swedish variety), Alexandrina. From red currants are very susceptible to terry varieties Red Cross, Generous.

Blackcurrant leaf necrosis disease

Marginal necrosis, or the death of the edges of leaves, currants is a non-infectious disease caused by an excess of chlorine in the soil. By the end of summer, the edges of the leaves acquire an ash-gray color in the form of a wide dry strip, which sharply differs from healthy tissue. The disease has symptoms of potassium starvation, but differs from the latter: there is a clear border between healthy and dried tissue, and the affected areas are lighter in color. Necrosis is noted on black and red currants and gooseberries.

Control measures. At the first symptoms of the disease, two-fold (at the beginning of the growing season and immediately after flowering) root feeding of plants with ammonium nitrate is carried out.

Disease of necrotic drying of black currant shoots

If the rules of care are violated, currant bushes may be susceptible to necrotic drying of the shoots. The disease is caused by the marsupial fungus. The main signs include the appearance of orange dots on the branches, the size of which is gradually increasing. Over time, brown tubercles appear in place of the points. If untreated, young shoots dry out.

This disease is most often found on white and black currants. If the leaves turn yellow on the currant, pruning of the bushes is required to remove all damaged parts. Bordeaux mixture is used to treat black currant disease. It is recommended that the rules for caring for the bushes are observed, which include regular feeding, removing weeds and dangerous leaves and standardized watering. This will increase the immunity of the bushes, and prevent them from becoming infected with a fungal disease.

Studying the history of the appearance of currants in the garden, it is a great surprise that bushes with red and white berries for many years were considered only decorative details of gardens. The palace parks of Europe were full of bright red highlights among the greenery. Only with the onset of the sixteenth century, the berry was tasted, after which the popularity of the shrub increased markedly and reached Russia.

Of course, black currant has a pronounced aroma, but in terms of the amount of nutrients and essential oils, white and red are not inferior to it. The highest concentration of pectin allows you to make jelly from berries even without adding gelatin.

The ancestor of all varieties, red currant, is distinguished by its unpretentiousness. Modern varieties are bred using three main varieties, one of which was white. That is why both red and white berries are considered as one species.

On the site, the shrub will take in better, and will develop faster in sandy loam and loamy soils. The landing site should not be in the shade, the culture is photophilous. Watering the shrub is necessary, but not often and not abundantly. Watering twice a week is sufficient during hot summer months. More often you need to water during the period of active fruiting.

The plant propagates by dividing the bush. Every year the shrub throws out several woody cuttings that can be planted.

The optimal time for planting is autumn, preferably September - early October. A few days before the intended planting, it is recommended to dig a planting hole up to half a meter deep, leave it open so that the soil settles properly. If the gardener is planting several shrubs at once, it is recommended to keep a distance of at least 1.5-2 m between the planting pits.

A few days later, young shrubs are planted in the previously prepared planting pits. The ground from above is compacted tightly so that voids do not form.

Before planting, the shoots are shortened to 20 cm in length. The soil is around.

Care features

The culture is characterized by high winter hardiness and disease resistance. Therefore, no specific treatments are required. It is not demanding for watering, the only exception is intense heat and a period of active ripening of berries. Needs cleaning of the soil from the rhizomes of weeds. In addition, it will not be superfluous to loosen the soil periodically.

As fertilizers, nitrogen is used in the spring, and potash in the fall.

Periodically, in autumn and spring, currant bushes are trimmed. In spring, pruning is best done immediately after the frost leaves, before the period of active sap movement. And in the summer, after the harvest, sanitary pruning is carried out. The removal of shoots of the zero row is periodically required. It is important that one-year increments are not trimmed or removed.

For six vegetative seasons, the bush forms 20-26 branches. Therefore, starting from the next year, several old branches are removed.

The crop is evenly distributed throughout the bush and does not shift as it ages.

The buds will form in tiers, because of this, the ends of the branches are not cut off. Young growth is pruned so that at least three buds remain on the shoots.

Red currant varieties

Red currants do not have many varieties. For planting in the northern regions, it is recommended to use varieties: Houghton Castle, Svetlana, Faya, Gollandskaya krasnaya.

• Gazelle. By the ripening period, the average variety, the berries are not large, sourish.
• Red Versailles. An early, very widespread, undersized variety. Differs in high yield and size of berries.
• Dutch. High-yielding, mid-season variety, the bush bears fruit for 25-30 years.
• Houghton Castle. Mid-season, tall, winter-hardy variety, small fruits.
• Red Cross. Medium yield, large bushes, large berries.
• Natalie. Late, fruitful variety with large berries.

According to its requirements, the white look is similar to the red one, so there are no big differences in the rules of planting and leaving.

It is worth paying attention to the fact that if the gardener nevertheless decided to apply fertilizer before planting in the planting pit, then the roots should not touch mineral fertilizers. Because they will simply burn out. And the plant will wither and eventually die.

During planting, the planting material is shaken, then the roots are spread evenly over the pit.

In the spring, after the buds appear, the plant is watered with warm water (the temperature is not higher than 70 degrees). There will be no harm to the plant from such a procedure, but as a prophylaxis against pests, it will come in handy.

Unlike red currants, white currants are very moisture-loving. The size of the crop directly depends on the amount of watering.

The requirements for pruning the shoots of shrubs do not differ from those described in the part of red currants.

Culture propagated by cuttings. Saplings are planted in an open area, in an abundance of sunlight. When growing in the shade, the taste of the berries deteriorates markedly, they lose their sweetness and can be watery.

White currant varieties

There are not so many varieties, their winter hardiness is average.

• White fairy. The shrub is tall and spreading. The berries are not large, almost transparent, juicy. High yield, excellent resistance to pests and diseases.
• Versailles. The bush is medium, not high productivity, but the berries are large, have a characteristic yellowish tint. Low disease resistance, low winter hardiness.
• Dutch white. Mid-season, highly resistant to fungi. Differs in sour, large berries, white with ruddy red barrels. Highly winter hardy.
• Smolyaninovskaya currant. Tall shrubs with sparse crown. They are highly resistant to diseases and pests. The fruits are large, the fruit branch is all elongated, covered with berries. The bush is high-yielding, in the season up to 10 kg of berries, suitable for conservation, jam, freezing, etc. They are distinguished by high keeping quality.

Diseases of the currant

Most diseases, with the right approach, can be "cured", while the plant will continue its life cycle. If you miss the right moment and take no action, you can lose your culture. By the way, the article identifies currant diseases with a description and a photo, so that, through not cunning manipulations, get rid of them forever.

The most dangerous fungal disease that the culture is susceptible to is called Anthracnose. The aerial part is affected, the foliage is covered with reddish spots. If you do not carry out any measures, then the number of spots increases, they become larger and the surface of the leaf gradually dries out. After a while, the bush completely fades. A particularly favorable environment for the spread of the disease is a rainy summer. At the slightest suspicion of a disease, it is recommended:

• Dilute Bordeaux liquid in 5 liters of water 50 g. Treat the shrub twice with an interval of 1 month. After the foliage is dropped, in the fall, it must be raked and removed in order to prevent the spread of the fungus. Dig the soil around the bush deeply.

Another equally dangerous disease of fungal origin is Powdery Mildew. It is very easy to recognize it, the aerial part is covered with a white bloom.

• As control measures, the currants are treated with the drug "Fitosporin". There is also a folk remedy, a solution of five percent iodine of 0.5 bottles per 5 liters of water is used. Such processing is carried out twice with an interval of 4-5 days.

The presence of orange-colored mushroom-like neoplasms on the trunks and sheets indicates the presence of a disease called Rust. The disease is classified into Goblet and Columnar. With Goblet Rust, the orange mushrooms are bulging, while with Stalk Rust they look more like a bloom.

• It is recommended to treat with "Fitosporin", if there is no result, you can use stronger preparations of the fungicide group.

There is a danger of losing the plant from viral diseases of the currant. So, for example, Terry is a big threat. The disease is transmitted by kidney mites. The virus provokes the infertility of the plant.

After the first flowers appear, the presence of the disease can be determined. The aboveground part is affected, and then the underground one. Diseased plants are removed, the treatment will not be effective.

Another common fungal disease is nectric shoot desiccation. The symptoms are obvious, the shoots are covered with dark red bumps, which constantly increase in size and darken to black. After a short period of time, the branches dry out, which leads the plant to death. As a fight against an infected bush, "bumpy" shoots are removed, and the rest of the bush is treated with a mixture of Bordeaux liquid and garden varnish.

Summing up the article, we can emphasize that growing currants at home is not at all difficult. The process does not require any special manipulations, but quite the opposite, one might say, "Planted - and forgot"!

You can prevent the appearance of currant diseases with the help of simple actions: removing weeds, removing fallen leaves and systematically feeding the plant.

Black and red currant bushes look strong and healthy. However, non-compliance with the conditions of care, as well as exposure to fungal diseases, insects and viruses, can lead to serious illness. In the absence of proper treatment, you can lose the currant crop. And some diseases of black currant lead to the complete death of the bush. In this article you will find currant diseases, descriptions with photographs and methods of treatment.

Powdery mildew

One of the most common currant diseases is powdery mildew. The disease is caused by a fungal infection. The main sign is the presence of a loose white bloom on young leaves. In the absence of treatment, the plaque passes to the berries.

If there is a white bloom on the branches on the currants, it is recommended to treat the bushes with Fitosporin. You can also use folk remedies. One of the most effective is iodine solution. You will need one bottle of iodine per bucket of water. After processing the bush, you should wait 3-4 days and repeat the procedure. You can also use a solution of copper sulfate.

Infection of the bush with powdery mildew indicates a violation of the growing rules. Subject to the rules of care, watering and feeding, the currant bushes will be strong enough, and the risk of infection will be minimal.

Powdery mildew

Nectric drying of shoots

If the rules of care are violated, currant bushes may be susceptible to necrotic drying of the shoots. The disease is caused by the marsupial fungus. The main features include the appearance of orange dots on the branches, the size of which is gradually increasing ... Over time, brown tubercles appear in place of the points. If untreated, young shoots dry out.

This disease is most often found on white and red currants. If the leaves turn yellow on the currant, pruning of the bushes is required to remove all damaged parts. Bordeaux mixture is used to treat red currant disease. It is recommended that the rules for caring for the bushes are observed, which include regular feeding, removing weeds and dangerous leaves and standardized watering. This will increase the immunity of the bushes, and prevent them from becoming infected with a fungal disease.

Rust

The appearance of rust on currant bushes is possible regardless of the season. Rust on the leaves appears as raised orange spots or small dots ... The cause of the disease is the presence of sedges or conifers near the site.

To combat rust, the drug Fitosporin or Bordeaux liquid is used. The treatment is recommended to be carried out at least four times with an interval of 10-12 days.

Terry

The causative agent of terry is a viral infection. The most common carrier is a kidney mite. This disease is very dangerous. The virus affects the bush at the cellular level, leading to its infertility.

The main symptom of the disease is a change in the shape of the leaves. They become long, uneven, sharp teeth appear. The flowers become smaller and take on a purple hue ... The danger of the disease is the lack of fruit. Also, the signs include the absence of the characteristic aroma of currant leaves.

The disease can be identified at the flowering stage. Infected bushes can spread the infection, so at the first symptoms of terry bushes, the bushes should be removed. Pruning or treating currants will not work.

When planting currants, you should choose only proven planting material. To increase the resistance of the bushes to terry, it is necessary to regularly feed with potash and phosphorus fertilizers. Nitrogen fertilizers should be used in moderation. An excess of them can lead to a decrease in the immunity of the bushes. After harvesting, for the prevention of terry, it is recommended to treat the bushes with Karbofos. Treatment of currants from diseases is effective only for prevention purposes. Diseased plants must be completely removed.

Anthracnose

The causative agent of the disease is a fungal infection. Its first signs can be seen in the middle of summer. At first red and brown spots appear on the leaves, which gradually increase in size, after which the leaves dry out completely and fall off .

The disease occurs on bushes of all types, but most often affects red currants. The fungal infection is most active in cool and rainy weather. When the first signs of anthracnose appear, treatment should be started immediately. For this, Bordeaux liquid is used. She should spray the bushes at the first symptoms, as well as after harvest.

Treatment is not always effective, after which preventive measures should be followed. You should not plant young bushes in the same area where the currants, affected by anthracnose, grew. And all fallen leaves and damaged branches must be burned.

Big currant aphid

In the spring, it is recommended to spray the bushes with a nitrafen solution. This will help kill aphid eggs. The procedure should be carried out before the buds have increased in size, preparing to bloom. It is also effective to carry out the treatment of bushes with chlorophos. It is an excellent prophylactic agent, but it can be used before flowering or after harvest. If it was not possible to prevent the appearance of aphids, it is recommended to use a solution of laundry soap.

Leaf gall midge

A kidney mite is a dangerous pest. Bloating of the kidneys is the first symptom of infection. ... The buds that have been infected with a tick do not bloom in the spring. The buds of such currants die off and dry out, which leads to a significant loss of yield. Ticks are very small in size. Each bud can contain several thousand mites.

Another sign of kidney mite damage to the bush is a change in the color of the leaves and the shape of their tops. Such leaves have an irregular shape, are distinguished by a darker color and leathery structure. Damage can be replaced in mid-summer. The defeat of the bush by a kidney mite also leads to a decrease in the plant's immunity. Therefore, bushes are more likely to get sick with infectious diseases, such as terry.

To fight the tick, spring pruning of the bushes is required with the removal of the affected shoots. During the period of discarding flower brushes, it is recommended to spray the bushes with a suspension of colloidal sulfur. After the end of the flowering period, the bushes should be sprayed with a lime-sulfuric broth.

Spider mite

Spider mites can also destroy currant leaves. The first signs of infection appear before the flowering period. Leaves become reddish brown or whitish ... The characteristic features also include drying out and cessation of growth ... The consequences of infection include a decrease in plant immunity, as well as a slowdown in the ripening process of berries. If you do not start fighting the pest in time, the yield may decrease or completely disappear.

Currant glass

The glass pot is a caterpillar that damages the branches of all currant varieties. In mid-summer, butterflies lay eggs on the shoots. After birth, caterpillars penetrate into the branches and eat their core, leaving behind excrement. Caterpillars primarily destroy young branches, gradually moving to the entire bush. By the end of summer, the caterpillars descend to the base of the branches, remaining in them for the winter.

Visible damage can most often be found only the next year after infection of the bush. A characteristic feature is wilting of young ovaries with berries. Damaged shoots wither and dry out completely.

Timely pruning of bushes is best suited for the fight, including the removal and immediate destruction of all branches damaged by the caterpillar. Old branches should be cut back to the soil itself. During the flowering period, wilted branches should be removed to a healthy part. After the end of the flowering period, the bushes should be sprayed with a solution of Aktara. It is also effective to use folk remedies, among which the infusion of tops of tomatoes, tansy, mustard or celandine should be distinguished.

Blackcurrant berry sawfly

During the period of setting berries, you can see currants with a characteristic ribbing ... These berries are larger. Outside, the currant has no sign of damage. These symptoms indicate infection of the bush with berry sawfly larvae. Pests destroy seeds and berry pulp. The greatest damage is caused by pests to currant bushes in the second half of June.

In the first half of the second summer month, the larvae nod off the berries, making a small hole near the stalk. After that, the insects turn into pupae, which remain in this state for the cold season. After the release of insects, the berries fall off.

The fight against the berry sawfly is quite difficult due to the fact that the caterpillars live inside the berries, and the treatment solution is not able to destroy them. An excellent method of struggle is to dig up the soil under the planting of currants. Particular attention should be paid to areas with diseased bushes. You should also pick and destroy infected berries in a timely manner. After harvesting, you can spray the bush with chlorophos solution.

Good harvests to you!

It is good to enjoy delicious and healthy currant berries in the summer. But it so happens that currant bushes are affected by this or that disease and the harvest is sharply reduced or completely disappears. An experienced agronomist will tell you how to recognize a disease.

Infectious diseases

Reversal or terry

Description of the disease

Quite a common disease of the currant. It is caused by mycoplasmas, which are a group of microorganisms intermediate between bacteria and viruses. It manifests itself both on flowers and on leaves and in general on the density of the bush.

Most often, black currant suffers, in which the typical smell disappears. First, the buds suffer most from the disease, in which the tips become fiery red, later in some flowers the corolla becomes simply double, while in others the petals and sepals are reborn into scales of a dark red or, more often, purple color. The pistil becomes threadlike in shape. On sick currant bushes, buds and buds bloom with a delay of several days. From double flowers, berries either do not form at all or turn out to be small and ugly.

On currant leaves, the reversion disease manifests itself as follows: the leaf blades become three-lobed instead of five-lobed, their color darkens, the veins become smaller, and they coarse. The shoots become thinner, but their total number increases, so the currant bush thickens. The total yield losses from this disease range from 30 to 100%.

Currant disease is insidious in the sense that it can take years, for example, up to 4 years, from the day the bush is infected until symptoms appear. Therefore, it is recommended to consider the bush as mother plants of the variety, only starting from the fifth year after planting.

One of the signs of reversion is also the absence of berries on the entire currant bush or on individual branches. With the further development of the disease, the division of leaf plates into blades disappears, and the leaves begin to resemble birch in their outlines. Failure to remove the diseased currant bushes can lead to infection of all bushes, both in your area and in neighboring areas, from which the infection can fly to new bushes.

Preventive measures

There are currently no approved and effective drugs against the pathogen of reversion (2017). Therefore, all currant bushes on the site should be checked as often as possible for infection from the flowering phase to the ripening period.

Currant plants, even with isolated symptoms of terry disease, should be IMMEDIATELY uprooted and burned!

Kidney mites contribute to the spread of the pathogen. Therefore, the fight against them (see the article pests of currants) is a preventive measure against terry.

Fungal diseases

Powdery mildew

Description

It manifests itself in the form of a loose white bloom, first on young leaves, then on old and berries. The color of the affected leaves turns pale, they curl and dry out; fragility appears.

Disease harm

What does powdery mildew harm:

• plants are greatly weakened, winter hardiness is significantly reduced;
• the affected berries crack, rot, crumble ahead of time;
• infected inflorescences may not form berries;
• the disease contributes to the deformation of shoots and their lagging behind in growth, as well as shortening of internodes;
• leaves become ugly, chlorotic, smaller.

• High air humidity (over 80%);
• significant changes in temperature and humidity;
• excess nitrogen;
• reduced illumination.

Sources of infection are plant debris, including fallen leaves, falling berries. In this case, the processing of currants in spring and autumn will help.

Control measures

Fungicides

The main method of combating powdery mildew disease of currants is spraying with fungicides, both chemical and biological, using folk remedies and some disinfectants. In the early stages of the disease, pruning of severely affected plant parts can be helpful.

Of the chemical fungicides against powdery mildew, the following drugs can help: Topsin-M, Topaz, Skor, Acrobat, Raek, colloidal sulfur, the latter drug is weaker than Topaz and Topsin-M.

In the articles of some authors, one can find a proposal for the treatment of currants from diseases - nitrafen. However, this drug is too harmful and dangerous for humans to use it in a summer cottage. In addition, it has been banned from use for several years.

Of the biofungicides, the following can be considered: Planriz, Fitosporin-M, Gamair, Baktofit, Alirin-B, Rapsol. Of these, Baktofit and, slightly less, Alirin-B are relatively effective. The rest are significantly inferior in efficiency to chemical preparations. To achieve a noticeable result, Baktofit and Alirin-B are best used three times, and Alirin-B in increased concentration (5 tab / l of water).

From non-special preparations, in my experience, good results in the treatment of currants from diseases are obtained from the Pharmayod disinfectant. The author successfully used this drug on different crops, while the maximum effect was achieved when spraying with a solution at the rate of 2 ml / 1 l of water.

Traditional methods

Soap and soda solution. To obtain it, it is necessary to measure 50 g of soda ash and about the same amount of household or liquid green soap per 10 liters of water.

Horsetail decoction. To obtain it, it is necessary to insist in water at the rate of 100 g of grass per 1 liter of water. The resulting liquid should be boiled over low heat for 2 hours, then cooled and filtered. The result is a concentrate that can be refrigerated for up to a week. For spraying, it is recommended to dilute it with water 5 times. It is proposed to carry out such treatments 3-4 with a break of 5 days.

Serum solution. For use against powdery mildew, it is proposed to dilute it with water 10 times and spray it three times with an interval of 3 days. The method is effective only in dry weather.

Infusion of mullein. 1/3 of a bucket of cattle manure is proposed to be added with water until the container is full. After 3-4 days, it is proposed to dilute the infusion with water 10 times.

Tansy decoction. To obtain it, 300 g of fresh or 30 g of dried are proposed to be poured with 10 liters of water per day. After that, the infusion is advised to boil for two hours over low heat, and then filter and cool. The resulting liquid is recommended to spray the soil under the currant bushes to destroy the wintering infection to prevent plant infection.

Soap-ash infusion. Pour 1 kg of ash with 10 liters of boiling water, leave for 1-2 days. Before spraying the currants, add 50 g of liquid soap as an adhesive.

Anthracnose

Description

The currant disease manifests itself in the idea of \u200b\u200breddish-brown spots on the leaves, which usually appear in July. The disease can also affect the leaf petioles, which in the lower part of the currant bush may fall off the leaves prematurely. Most often, the disease is actively manifested in rainy years.

Red currants are more susceptible to anthracnose than others, so when damaged, its foliage falls off almost immediately.

Appearance conditions

The following factors contribute to the infection of plants with anthracnose:

• insects;
• strong gusts of wind;
• thickening of landings;
• frequent rains;
• the infection develops most actively at a temperature of 16-20 degrees.

Disease symptoms:

• brown spots appear on the leaf blades, initially 1 mm in size, gradually expanding to 2.5 mm;
• spots begin to resemble black mounds, which means the appearance of spores of the pathogen;
• browning, drying and premature leaf fall;
• deep brown ulcers form on the petioles and stalks;
• when the berries are affected, black specks form on them, after which the fruits fall off.
• Black currant is affected more often in mid-June.

Control measures

• Embedding leaves in the soil to a depth of about 10 cm or harvesting and burning them;
• Timely weed control and balanced fertilization, including micronutrient fertilization;
• Compliance with the currant planting scheme, regular pruning, especially in thickened places;
• Selection of resistant varieties. In black currants, the Primorsky Champion, Belorusskaya Sweet, Golubka, Zoya, Vystavochnaya, elegant are considered to be medium and highly resistant varieties. From varieties of red currants - Chulkovskaya, Red Dutch, Victoria.
• Spraying with various fungicides, including biological agents. Fitosporin-M, Alirin-B, Gamair are suitable biological products. Of the chemicals, it is effective and acceptable to use 1% Bordeaux liquid, colloidal sulfur (including under the name Tiovit Jet), Ridomil Gold, Previkur, Topsin-M. However, if a currant disease occurs with a large number of rapidly growing berries, especially if you notice the disease during their ripening, then use only biological products!
• Regular increase in plant resistance to infections through the use of drugs with immunostimulating effects: immunocytophyte, humates, extracts from vermicompost, Zircon, Silk, Narcissus, Bak Ekogel. Preventive treatment of bushes with suspensions of the above biological preparations is useful.

White spot or septoria

Description

Mostly leaves suffer from this currant disease. It manifests itself in the form of spots, first brown, and then white, but with a brown border measuring 2 to 3 mm in diameter.

Black currants are more often red and white currants affected by this disease.

Fallen leaves are the source of infection.

Control measures

Collection and burning of leaf litter,

spraying with biofungicides such as Fitosporin-M and Alirin-B, preferably in combination with fertilizers containing trace elements: copper, manganese, boron, zinc. So, for example, the drug Alirin-B is well combined with such polymicro-fertilizers as Uniflor-micro, Aquadon-micro.

Goblet rust

Disease symptoms

Yellow spots appear on the upper sides of the leaves, and orange goblet-shaped pads form on the lower sides. Scientifically, they are called eciospores and represent the fruiting bodies in which the so-called eciospores ripen.

Harmfulness

The disease can halve yields.

Control measures

• Cut off affected leaves and burn;
• In the phases of leaf blooming, budding and flowering, it is recommended to spray with such preparations as Abiga-Peak (copper oxychloride), 1% Bordeaux mixture, Topaz. In addition to special fungicides, some folk remedies can also help in the fight against this disease, in particular, a solution of soda and soap, an infusion of manure, and whey. Recommendations for their preparation and use are given in the section "Measures to combat powdery mildew". To prevent infection with goblet rust, it is recommended to spray also healthy bushes growing next to patients after 10-15 days;
• In autumn, after leaf fall, it is recommended to collect and burn fallen leaves;
• Regular pruning, especially anti-aging, but within reasonable limits;
• Weeding under bushes;
• Regular application of ash or other fertilizers containing phosphorus and potassium;
• It is advisable to spray the ground under the branches with a 1% solution of colloidal sulfur;
• Destruction by a number of growing sedges, which are intermediate hosts of the fungus.

Columnar rust

Description

In some manifestations, the disease resembles goblet rust. The main visual distinction of this rust is the columnar shape of the spores that form in the cushions - ecias. There is also a difference in developmental biology - the pathogen uses the fungus as the second host of the pine. One of the manifestations of the disease is drying and premature fall of currant leaves. By mid-August, the bush may be 25% bare.

Control measures

• Providing the currant bushes with phosphorus, potassium and trace elements. To do this, it is enough to add ash and some kind of polymicro-fertilizer, for example, Uniflor-micro or Aquadon-micro.
• Spraying after blooming black currant leaves with 1% Bordeaux liquid or copper oxychloride suspension. It can be sold under the name Abiga-Peak or Topaz solution. There can be 3-4 such treatments for currants with an interval of 10-15 days.
• Spatial isolation of currants from places where pines grow - planting currants at a considerable distance from the forest or forest belts;

Nectric drying of shoots and branches

Description

Red and white currants are more likely to suffer from this disease. For currant bushes, the disease can be considered fatal - causing the complete death of currant branches.

Control measures

Cutting the affected branches of currants, followed by burning and disinfecting the sections with a solution of copper or ferrous sulfate or Farmayod and covering them with garden pitch.

Vein mosaic

Description

A viral disease of the currant, manifested as a pale yellow pattern next to the main veins. The disease is incurable! However, in order to prevent the further spread of a viral infection, it is recommended to uproot and burn diseased bushes.

Preventive measures

Controlling harmful insects that can carry viruses (see the article on currant pests) and choosing healthy seedlings for planting.

Physiological diseases

These are disorders of vital activity associated with a lack or excess of nutrients. As a rule, they are typical for most plants. Since currants can also suffer from them, the following are common cases.

Yellowing of the lower leaves

A type of currant chlorosis caused by nitrogen deficiency. It is eliminated by applying a fertilizer containing nitrogen.

Poor fruit setting and slow ripening

When currant fruits are poorly tied or ripen slowly, this is a manifestation of phosphorus deficiency. A concomitant symptom is that the leaves take on a purple or bronze tint. The easiest way to eliminate the disease is feeding with a solution of potassium monophosphate.

Edge burn and wrinkling of leaves

Potassium deficiency symptoms. You can eliminate it by adding ash, including in the form of an infusion or feeding with a solution of potassium sulfate.

Interveinal chlorosis of lower leaves

It manifests itself in the yellowing of the tissues of the currant leaf between the veins. Magnesium deficiency symptom. It is eliminated by feeding with a solution of magnesium sulfate.

Interveinal chlorosis of upper leaves

Iron deficiency symptom. It is safest to eliminate by root feeding with a 0.1% solution of ferrous sulfate or by spraying on currant leaves with a solution of iron chelate.

Leaf rosette

The disease manifests itself in the form of shortened currant leaves and very short internodes. Zinc deficiency symptom. It can manifest itself with excessive application of phosphorus fertilizers. As a treatment, you can either spray it with a solution of zinc sulfate or a solution of one of the polymicro fertilizers, for example Uniflor-micro.

Alexander Zharavin, scientist agronomist