Leaves turn yellow on black and red currants: why and what to do, control measures

Currant is a shrub of the gooseberry family. Currant berries are juicy, have a pronounced sweet and sour taste. Owners of orchards and orchards put a lot of effort into getting a good harvest. Often, currant leaves begin to turn yellow. This is evidence of problems, a signal that crop care practices need to be adjusted.

Signs and symptoms

Currant varieties differ from each other in external characteristics and taste. The most popular shrubs are black, white and red currants.

He althy shrubs have strong branches, green leaves, light brown or brown bark. There are signs by which the presence of problems in the growth and development of currants is determined. The need for additional processing of the shrub arises if:

• leaves began to turn yellow;
• branches grow poorly;
• leaves fall from bushes;
• leaves dry up around the edges.

Pale spots may appear on blackcurrants, indicating the presence of pests.

Common Causes

To find out why the leaves are drying and why the leaves have turned yellow, a thorough inspection of all young bushes is carried out.

Factors that provoke the appearance of external damage are called:

• appearance of parasites and their spread;
• diseases of shrubs (in this case, the branch may dry out completely);
• violations of the rules of leaving.

Insect pests and methods of dealing with them

Parasites become a common cause of yellowing, falling or drying of currant leaves. They can move from neighboring crops or emerge from larvae formed as a result of soil rotting.

Spider mite

This type of pest is recognized by the presence of a web with which it envelops the branches. It is given out by a red shade of a body, it is well appreciable on green foliage. The mite mainly spreads on young shrubs. It feeds on the beneficial elements contained in the leaves. After its appearance, the leaves turn pale, dry, turn yellow.

Measures to combat spider mites are timely spraying with special substances, cleaning branches from cobwebs.

Bud mite

This parasite infects black currant varieties. It lives in unopened buds. A sign of his being on a bush:

• yellowness of leaves;
• increased kidney size.

The kidney mite is dangerous because it spreads quickly. The female produces 4 or 5 generations of larvae per year. The shrub may die in one season. Infected plants are destroyed, it is almost impossible to cure them.

Currant glass jar

Glassbutterflies lay their larvae in the middle of the bark. They are found when cutting a branch. The larvae look like black dots. The danger of the spread of this parasite lies in the rapid defeat of the entire shrub.

Aphid

When aphids appear, currant leaves begin to swell from the inside, then these bumps turn red.The last step is the yellowing of the leaves. At the end of July, the aphid moves to other crops, since by this period it takes the most valuable substances for existence from the currant.

To get rid of aphids, trees are treated with special solutions.

Diseases and treatment

Currant diseases are a common cause of yellowing. They can affect adult bushes and young seedlings. Infection occurs regardless of conditions, it can be epidemics that spread from the surfaces of other crops.

Anthracnose

Fungal type disease. Brown spots quickly spread over the entire surface of the leaves, then they turn yellow and fall off. Anthracnose affects a young plant during active growth, it is especially dangerous because it can lead to the loss of the entire crop.

Treatment and prevention measures include treatment and removal of damaged areas.

Column rust

If cereal crops are located next to currants, then the diseases to which they are susceptible will most likely spread to blackcurrant bushes. The first sign of damage is the reddening of the lower leaves, then the edges of all leaves begin to turn yellow, they fall off.

Treatment and prevention measures are the treatment of bushes and proper seating planning.

Spheroteca

A fungal disease that affects not only foliage, but also berries. The fruits are covered with a whitish coating, after yellowing the leaves fall to the ground. Such a defeat leads to the fact that the crop becomes unfit for human consumption.

If the disease has spread to the entire bush, the white spots are covered with black dots, then the bush cannot be cured, the branches are cut and then burned.

Unsuitable climatic conditions

Many gardeners call one of the reasons for the yellowing of currant leaves the unfavorable conditions in which the shrub develops. In June, currant leaves begin to turn yellow due to too much waterlogging of the soil. This happens if there are heavy rains at the beginning of summer. This symptom is recognized by waterlogged soil, rot on the lower leaves and yellowness on the upper ones. In summer, shrubs must be carefully looked after.

Irrational planting can lead to yellowing of currant leaves. The culture loves free seating. When planning, it is recommended to adhere to the basic rules:

• should not block access to light;
• do not limit the area to vegetable beds;
• should not be planted near cereal crops.

In July and August, due to the establishment of hot weather and high temperatures, the bush often dries up. This is determined by dry bottom sheets, yellowness at the edges, stunted, weak appearance. Early frosts in autumn can destroy the future crop if the bush is not insulated. The reason is often late frosts in spring, if gardeners have already prepared the bush to exit the dormant phase into the growth phase, loosened the soil and exposed the lower leaves.

Lack of minerals

With the scarcity of the soil, the absence of favorable weather conditions, amateur gardeners are wondering how to feed the currant bushes if they do not have enough food. Fertilizers help improve the condition of the shrub and enrich the soil. From it, the root system receives nutrients and enters the growth phase. A developed root system transfers part of the nutrients to the leaves, they turn green and form ovaries.

How to feed bushes

Shrubs, regardless of variety, fertilize several times during the season. In autumn, it is customary to fertilize the soil with humus mixed with potassium and phosphorus compounds. At the beginning of summer, nourish the soil under the bush with wood ash, which helps to activate the growth of the root system and helps protect against pest damage.

After harvesting, they feed the soil with liquid fertilizers that contain potassium and phosphates, during this period they are especially lacking. Top dressing is necessary in order to ensure further growth of the shrub and the transition to a calm phase of sleep.

How and how to process currants so that the leaves do not turn yellow

Gardeners who have been growing currants for several decades use their own recipes. These folk remedies involve the treatment of shrubs during periods of disease and pest damage.

1. Tomato tops. This remedy is suitable for treating leaf infestations with aphid colonies. The tops are collected, insisted. Bushes are sprayed with a solution 2 times a week, a seven-day course.
2. Solutions from chamomile or yarrow. Shrubs are sprayed with these liquids from special equipment 1 time, weekly. Solutions are suitable for processing on dry days. In case of serious diseases or pests, preventive measures are not useful.
3. Tobacco solutions help to treat bushes from aphids, mites. Tobacco leaves are brewed with boiling water, the solution is cooled, and processed.
4. Dry mustard. Mustard powder is used for sprinkling. For this procedure, cloudy, not hot days are chosen, otherwise the remedy can scorch the tips of the leaves. The places where the spider mite is located or the aphid lives are sprinkled abundantly with powder, left not watered for 2 days.
5. Processing with laundry soap. This tool helps with the invasion of pests, saves shrubs from rust and spherical damage. A bar of soap is whittled, a bucket of warm water is added. Leaves and branches are treated with soapy water.

Garden Rules

Currant requires compliance with the minimum rules for watering, processing, feeding:

• pruning is carried out 2 times a year;
• watering is carried out as needed;
• feeding should be regular;
• loosening the soil is carried out in the summer.

Pruning is done in spring or autumn. The main goals of the autumn procedure are the formation of shrubs, as well as the removal of old branches that interfere with development. Spring pruning is a way to adjust.

Attention! Affected and diseased branches are burned after pruning.

In favorable growing conditions, when spring and summer delight with regular rains, currants need to be watered only 3 times:

1. Abundant watering is done during the formation of ovaries, active growth of green leaves. This period falls on the end of May-beginning of June.
2. The second watering is carried out during the active formation of berries.
3. The bush needs to be watered for the third time when the crop is harvested.

What to do if the rains are too frequent or the weather is dry - such questions visit gardeners with unfavorable weather forecasts. After heavy rains, it is recommended to fertilize the soil with peat. Drought requires more frequent self-watering.

Feeding is regular, each period requires a certain approach:

• shrubs need to be fertilized with potassium, nitrogen at the time of growth;
• for the formation of fruits are fed with phosphates;
• after harvesting, the plant needs potash fertilizer to restore the expended strength.

Loosening the soil around the shrub saturates it with oxygen, so during the summer season it is recommended to carry out this procedure at least 3 times.Correct, timely application of top dressing, necessary watering, pest control prevention help gardeners grow a good crop.

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