How delighted to the sophisticated gardener juicy transparent-scarlet clusters, which red currant overflows under the summer sun! Diseases and pests, however, can not only deprive a bush of fruits, but also completely destroy it. Reasonable care of the plant from the moment of planting will protect the berry. The bushes should not be thickened, the optimal distance between them is at least two meters, then the plant is adequately illuminated by the sun, ventilated. Mandatory removal of old branches.
Redcurrant: diseases and pests
Reversion
This viral disease is also called terry. She suffers from all types of currants. You can recognize by the bizarre shape of the flowers: the petals are made filiform, 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 mutilated inflorescences, you can cut the branches on which they blossomed, and if the flowers swirling in large numbers, then the bush must be uprooted and burned.
Often you can find red spots on the currant , gray or dark brown.
Septoria
The fungus “draws” on the leaves abstract compositions of spots with a brown border, on which black dots (spores) are scattered. You can help the plant by spraying with preparations containing copper. Affected branches need to be cut.
Anthracnose
The leaves and shoots of currants become dry, as if burnt. In this case, the bush must be treated with fungicides (antifungal drugs), such as Bordeaux liquid. Helps in the fight against pest and copper sulfate.
Ball rust
What other fungal diseases of currant exist? Red spots on the leaves appear due to damage by a rust fungus. On the underside of the sheet, heaps of “goblets” are pressed together like corrosion. Affected leaves and berries must be collected and thrown into the fire. After collecting healthy berries, the bush is treated with copper-containing preparations. The same treatment must be carried out in the spring. Spring "shower" of mineral fertilizers (half a kilogram of urea or nitroammophoska dissolved in ten liters of water) will serve as a good prevention. The insidiousness of the parasite lies in the fact that the fungus moves to the nearby grass by winter, and in spring returns to the garden culture.
In the fall, red currants require special care. Diseases and pests often winter on fallen leaves and in the soil, so the earth around the bush should be cleared and dug several times.
Sphere library
The disease, in which shoots and leaves are covered with white coating, is also called powdery mildew. Unripe berries are wrapped in a felt layer and, of course, are not suitable for food. To save the currant, it is necessary to spray the bush with a special solution at the first sign of a sphere library. For ten liters of water take 50 grams of soda ash and 40 grams of shavings soap.
Enemies among insects
Great damage to currants is caused by aphids. In spring, its larvae are selected from the buds, colonize the bush and suck juices from it. On the back of the leaves red bubbles bubble up, the shoots bend, twist and dry. Aphids are bred by ants that feed on their sweet “milk”. The fight against aphids begins in early spring with the treatment of bushes and the soil around them with a three percent nitrofen solution (for a ten-liter bucket of water - 300 grams of the product). Decoctions from yarrow, horse sorrel, dandelion, marigolds, as well as from tops of tomatoes and potatoes will help. Spraying is excluded only during the flowering period of currants and stops 5 days before picking berries.
Caterpillars of currant glasshouse gnaw through the “tunnels” in the core of branches, which inhibits the plant. Damaged branches should be cut immediately.
Gooseberry larvae larvae braid bunches of berries with cobwebs and suck out the juice. Pest control consists in autumn digging of the soil into which insect pupae go to winter, and in processing the bush before flowering with infusion of shag or tobacco leaves.
Redcurrant will thank its owner with a generous harvest. Diseases and pests will be neutralized by the skillful actions of the gardener, lovingly taking care of his green pets.