Currant leaves curl: how to process and what means to fight

The external state of its growth speaks about the fertility of a crop. Therefore, when currant leaves curl, you need to know how to process it. Otherwise, a sick berry bush will not be able to give the desired amount of crop production. In addition, without measures of struggle, he will eventually die.

Causes of currant leaf curl

The indicator of currant he alth is its appearance. The following factors speak of pathological processes that negatively affect plants:

1. Garden crops curl top leaves.
2. Shrub foliage changes color and becomes depigmented.
3. Green plants roll up into a cocoon or a boat.
4. Leaves thicken and take on a tight look.

Damage to the appearance of the bush has several causes. As a rule, insect pests and fungal diseases are the main culprits. Each reason requires immediate intervention. Otherwise, the gardener will not only not get the desired yield result, but will also lose the plants themselves.

Symptoms of pest parasitism

Currant leaf juice attracts many insects. Therefore, a berry bush can become a tasty morsel for more than 80 types of pests. Some of them are quite rare. Their appearance, as a rule, is untimely agricultural technology. But there is a species of insects of the first category, which, regardless of weather conditions and rules of care, every summer resident can encounter.

Let's consider the TOP of the most common insects that cause a garden crop to dry out, and the symptoms for recognizing them.

Spider mite

The spider mite is a fairly small insect. The size of adult pests does not exceed 0.5 millimeters. At the same time, at a young age, they have a green color. In this regard, it is quite difficult to notice the appearance of a spider mite on currant bushes. You can recognize these insects only by the appearance of greenery. As a rule, the presence of mites will be indicated by a small cobweb on the back of the twisted foliage

Gall aphid

Gall aphid is considered the most dangerous pest for currants. During its raids, berry bushes lose their immunity to fungal and infectious diseases, which leads to their death. You can recognize the appearance of insects by abnormal neoplasms on currant foliage.First, green growths appear on the greenery of plants, which eventually begin to turn red.

Currant glass jar

Glasses are small butterflies with long transparent wings. Adult insects do not pose a threat to plants. Great harm to berry bushes is caused by their larvae - caterpillars, which feed on the pulp of trunks and greenery of plants during the entire phase of their life cycle. In the initial stage of the appearance of insects, currant parasitism is barely noticeable. When the strengthened caterpillars begin to eat plentifully, blackened holes appear on the shoots of plants, the tops of the leaves are twisted and wrapped in cobwebs.

Leaflet

Small leaf-roller butterflies, just like glassflies, lay their eggs on currant bushes. After hatching, insect caterpillars actively eat the flesh of plants. When it's time to pupate, they begin to wrap leaves around themselves to envelop.To attach the leaflet, a sticky substance is isolated. The presence of a viscous cobweb will indicate that the currant is affected by these pests.

How to deal with pests

All of the above pests are a great danger to currants. When they appear, berry bushes lose nutrients that are so necessary for fruit set. In this case, dehydration leads to deformation and wilting of the culture, which causes its death. To avoid such negative consequences, pest control measures should be taken immediately at the first symptoms of parasitism.

Insect control products

Currant pest control can be carried out in several ways. Among them, the most common are:

• use of chemicals;
• use of organic insecticides;
• folk remedies.

When using the first method, the active substances of chemicals actively cope with pests and their larvae. This prevents currant curdling. However, the elements of chemicals have a negative impact not only on insects, but also on the plant itself. In this regard, when eating berries, the risk of harm to the person himself also increases.

Organic insecticides are safer. They paralyze the digestive system of pests, while remaining harmless to other insects, plants and the person himself. But they do not always cope with the larvae and eggs of pests.

Terms of processing

It is necessary to fight insect pests throughout the growing season of the currant.

Optimal processing times are:

• early spring;
• before bud break;
• during active flowering;
• 2 weeks before fruiting starts;

Final processing of horticultural crops is carried out in the fall, after harvest. At the same time, each stage provides for certain means.

Important! In cases where the currant is affected by a colony of parasites, the treatment of plants should be carried out every 2-3 weeks.

Processing technology

The first control measure is aimed at the destruction of insect larvae. It is carried out before the bud break phase and provides for the following activities:

• pruning affected shoots;
• delete all suspicious leaves;
• digging and disinfection of the trunk circle;
• stem whitewashing.

Subsequent treatments are carried out with chemical, biological or folk remedies to kill adult pests.

Chemicals

As chemicals for currants, drugs such as:

• Aktara;
• Spark;
• Inta-vir.

These funds are considered the fastest and most effective. However, due to negative effects, they should be applied before the fruiting of the currant.

Biologicals

Among the most popular biologics that stop currants from wrapping are:

• Aktofit;
• Bitoxibacillin;
• Lepidocide.

All these drugs are based on living organisms, so they do not pose a threat to plants and humans. However, unlike chemicals, biological products are less effective in killing insect eggs and larvae. They are applied at all stages of the growing season.

Folk remedies

Folk pest control methods are considered the most harmless, but at the same time, quite effective. In addition, their use saves the family budget.

For the processing of currants, there is a proven folk method based on garlic. It is prepared from 1 head of chopped garlic and 1 liter of boiled water. The resulting concentrate is first infused for 1 week, and then it (60 milliliters) is diluted in 10 liters of water.

Types and signs of diseases

Despite the fact that the horticultural crop is divided into white, red and black varieties, they are all subject to the same diseases. Each pathology in its advanced form leads to the death of the berry bush. Therefore, it is very important to recognize diseases in a timely manner and take appropriate measures.

Let's give examples of the most common currant pathologies and their signs.

Anthracnose

The causative agents of this disease are fungi Colletotrichum orbiculare. The first signs of infection are observed in mid-summer. With anthracnose, first the leaves turn red on the currant, then they dry up and fall off.

Glass Rust

Infection of berry bushes with goblet rust can be seen in the first half of the growing season. The first signs of the disease are orange pads on the underside of the foliage. When the pathology becomes severe, the berries of the bush are deformed and become one-sided. At the same time, they stop growing and fall off the bush.

Column rust

When the currant is affected by columnar rust, its leaf on the underside is covered with orange horn spores. These signs of pathology are noticeable in the first half of summer. The lesions then turn brown and cover all sides of the green by the end of August.

Spheroteca

The first signs of a sphere library can be seen already in May. A symptom of the disease is a white coating that covers the greens, shoots and currant berries. Later, the "pollen" turns into mold and becomes a dark brown hue. As a result, currant berries lose their taste, and diseased bushes die.

How to treat currants from diseases

In order for the currant to stop spinning and quickly restore its he alth, at the first sign of illness, you need to immediately start processing it. The fight against diseases is not as difficult as it might seem at first glance. But before carrying it out, you need to know the timing, and what funds will be needed.

Drugs for therapeutic measures

Today, there are various drugs that can cope with the main diseases of the berry bush.

Of these, the most sparing are:

• 3% copper sulfate solution;
• 1% solution of Bordeaux mixture;
• Topaz;
• 5% iron sulfate solution.

Ash infusion can be used as a folk remedy. It is made from 100 grams of ash and 1 liter of water. First, the concentrate is infused for 3 days, then filtered and diluted with 3 liters of water.

Scheme and terms of processing

Processing of horticultural bushes is carried out at a certain time.

Steps and scheme of disease control:

1. Early spring. During this period, all fallen leaves are removed from the garden plot, the soil is loosened, currant bushes are sprayed with copper or iron sulfate.
2. The stage of budding. As soon as the first buds appear on the currant bushes, they are treated with a 3% solution of Bordeaux liquid.
3. After flowering and harvest. At this stage, the currants are sprayed with a 1% solution of Bordeaux liquid.

In the event that currant processing was not carried out within a certain period, the dosage of drugs cannot be increased. To do this, it is better to spray the bushes as quickly as possible, using a tool such as Topaz.

Prevention measures

In order to prevent the development of diseases and the appearance of insects, you need to follow a few rules.

Prevention measures include:

1. As soon as the snow melts, all dried and diseased branches must be removed from the currant.
2. In the spring, it is recommended to clean the garden plot from fallen leaves and other organic matter.
3. Shrub branches should not touch the ground, for this they should organize a support.
4. Collect and destroy insect pupae in a timely manner.

It is also recommended to treat the soil with urea in the fall.

So, having considered the reasons for currant curling, as well as what to do at these moments, each gardener will be able to take appropriate measures in a timely manner. As you can see, they are not so difficult and do not take up much free time. However, using them, it will be possible not only to save berry bushes from death, but also to increase their fertility.

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