Content
The berry season is over. The entire crop is safely hidden in jars. For gardeners, the period of caring for currants does not end. This is the stage of work on which the future harvest depends. Processing currants in autumn involves the following types of horticultural activities: pruning currant bush, treating it from insect pests and diseases, applying fertilizers to increase the immunity of the plant.
Currants have a number of specific diseases; they can be attacked by pests. During flowering and ripening of berries, it is impossible to process currants with special preparations. The most convenient time for processing is after harvest. In order for the currant bushes to remain healthy throughout the growing season, a number of actions should be taken in advance in the fall:
- The shrub is sprayed with special chemicals aimed at protecting plants;
- Loosening and cultivation of the soil under the bushes of black currant are carried out;
- Make top dressing;
- Rejuvenate the bushes by autumn currant pruning.
The activities will be of a preventive nature.
Top dressing and fertilization
If the plant is strong and healthy, then it is not afraid of diseases and attacks of insect pests. The introduction of mineral fertilizers and timely dressings increase the immunity of black currant.
After harvest, the plant needs phosphorus and potassium. A sufficient amount of absorbed microelements makes black currant resistant to the upcoming frost, contributes to the growth of root mass.
Potassium sulfate either potassium sulfate and double superphosphate is required to make 1 tbsp. l., scattering currants around the bush in diameter, and then spill well with water, taking at least 10 liters. Or dissolve fertilizers in a bucket of water and pour over the finished solution.
No less useful will be the introduction of wood ash, which is rich in various trace elements. For feeding currants take 1 tbsp. and scattered around the bush. It is better to combine the application of ash with digging up the soil under the bush. An ash solution can be prepared if the weather is too dry.
Gardeners who are fundamentally against the introduction of mineral fertilizers can overlay currant bushes with compost or dig up the soil with it. During the winter, organic compounds will transform into a form that is convenient for absorption by currant roots. The organic fertilizing produced by the plant will be in full demand by the plant in the spring to build up the green mass.
If the planting of the currant bush was done correctly with the laying of all the necessary fertilizers in the planting hole, then no additional dressings will be required for 2 years. They begin to be brought in only from the 3rd year of the life of the bush.
Watch a video about feeding in the fall:
Currant pruning
Another important agrotechnical activity after the harvest is the autumn pruning of currants. This will require tools such as a pruner, a garden saw, and a garden shears. Regular saws and scissors will not work. All tools must be well sharpened and treated with disinfectants (kerosene, alcohol, potassium permanganate).
Pruning is started immediately after the foliage has fallen off. The first step is to cut off dried, broken branches, weakened and affected by diseases or pests. Contenders for removal are also currant branches that are too thin and lying on the ground.
The next stage is pruning and shaping the crown of the bush. Shoots 3-4 years old should be cut down.They carry an unnecessary load on the root system, which supplies the entire bush with nutrients. The berries on such old branches are small and there are too few of them.
Branches that grow inward or intertwine with others should be removed. In order to avoid infection, all sections are treated with either Bordeaux liquid or garden pitch.
Choose about 6 young shoots of the current year, they should be the strongest, healthiest and well-placed. They are left behind. The rest of the growth is cut out. If you follow this pruning plan annually, then there will be a currant bush of 15 shoots, of different ages (1, 2, 3 years), but which are the most productive.
Next, you should shorten the length of the branches. In the old, the tops are cut off, which usually dry up; in the young, no more than 6 buds are left. All trimmed material is best burned to prevent the spread of potential infection and pests. After pruning, protective measures are taken to process currants.
Protection from pests and diseases
Than process currants in autumnto prevent the development of diseases and pests? After harvesting, it is recommended as a preventive measure to spray the Bordeaux liquid and the currant bush itself, and the soil around it, and the aisle.
For novice gardeners, recall that Bordeaux liquid is prepared from 100 g of copper sulfate and 100 g of lime, which dissolve in a bucket of water, resulting in a liquid of deep turquoise color. Bordeaux liquid fights well against fungal infections; it can be used to process cuts and cuts on a bush. The tool has long been known to gardeners, is widely used, as it is quite effective. Process the black currants at least 2 times weekly.
Another substance that acts against fungi and their spores, insects and larvae is a concentrated solution of carbamide (urea). For spraying black currants, take at least 300 g of urea dissolved in a bucket of water (10 l). The whole bush is abundantly sprayed with the prepared solution.
Some gardeners recommend not to wait for the autumn fall of the currant. And remove the leaves yourself at the first sign of wilting and yellowing. So the plant will focus on preparing for winter, all nutrients will be directed to the branches and buds of the currant bush.
Collecting fallen leaves, cleaning litter and dry branches from the soil is a must. Usually, pests and spores of bacteria and fungi hibernate in rotting plant debris. The collected waste is best incinerated.
And the soil under the currant bushes is loosened and treated with a light pink solution of potassium permanganate, Bordeaux liquid (100g / 10 l of water) or a solution of copper sulfate (50 g / 10 l of water).
Loosening around the base of the bush is carried out to a shallow depth of about 5 cm under the crown, going deeper by 15 cm, and in the row spacing they dig up to a depth of 20-30 cm. After loosening, the soil and the bush are treated with Karbofos according to the instructions or with boric acid.
Several rules, the observance of which will lead to success in the fight against insects and diseases:
- Choose disease-resistant currant varieties for future planting;
- If the first signs of the disease appear, do not be afraid to use insecticidal and fungicidal preparations, i.e. those aimed at protecting plants from insects and diseases;
- For spraying to be effective, apply it only in dry weather when no rain is expected. Do not process currant bushes immediately after rain or after dew has fallen.
Preventive measures will help protect currant bushes from such serious diseases and pests as:
- Anthracnose - looks at first like reddish specks on the leaves that appear in summer.Then they become larger and affect the entire leaf, it dries and falls off. In winter, spores persist in plant debris under the bush. In the fall, it is necessary to collect and burn the fallen leaves;
- Powdery mildew - its appearance is indicated by a white bloom on the leaves and berries of currants in the middle of summer. The disease primarily affects weakened bushes. It is important not to allow the plants to weaken by feeding them regularly;
- Rust - manifests itself in the appearance of convex growths of orange color or as dots, also orange in color. Bordeaux liquid or Fitosporin will help;
- Currant defeat glass bowl - butterfly, which lays eggs in the bark of the currant. Caterpillars appear from the eggs, which make moves in the middle of the shoots, which makes them dry out. Means of struggle - "Karbofos".
- Aphid - the leaves turn red, then darken and fall off. Karbaphos fights well with aphids. Autumn treatment with the drug will not allow the appearance of aphids in the summer;
- Moth - butterfly, whose pupae overwinter in the soil under a bush. It is necessary to loosen the soil around the bush. Moths lay eggs in currant flowers, causing their death.
It is much easier to take simple preventive measures than, without doing this, to treat diseases that can end very sadly: the complete removal of the diseased bush.
Conclusion
Preventive measures aimed at protecting currants from possible diseases and pests are important agricultural practices, as they are aimed at shaping the future harvest. Pay due attention to the autumn feeding of currants, which makes it possible to form a strong immunity, the plant will enter the winter prepared and easily transfer it. Do not forget about pruning the currant bush. It is important to rejuvenate the bush and have shoots that will yield the highest yield possible.
