Black and red currants: diseases and pests

black and red currants diseases and pests Blog

Healthy currants – rich harvest

Summer this year turned out to be great: ripe, juicy, and varied. Everything happens at the same time: it blooms, ripens and nimbly collects in cans and buckets. No sooner had the delicate fragrant victoria left than the blue-black or red currant itself asks for jelly and compotes. And for these summer, pleasant chores, we forget that after the birth of bright vitamin berries, the currant bush needs care and attention, and for such a seemingly unpretentious plant like black currant, diseases and pests can cause a lot of trouble. Inspect this wordless plant, take a closer look at its leaves, because you still need them for all sorts of pickles. If the leaves of the currants become brown, yellow or covered with rusty spots – sound the alarm, roll up your sleeves and start treatment. The health of your currant is in danger!

Try to correctly identify the disease and make a diagnosis. Now we will consider several of the most common currant diseases.

Enemy number one: powdery mildew

AMERICAN POWY DEW very often undermines the health of currants, but many of you do not pay any attention to this, but in vain: you may be left without a crop for next year. Powdery mildew coats berries, leaves and currant shoots with a white cobweb bloom, which gradually thickens, and black dots appear on it. Leaves and shoots stop growing abruptly – this is American powdery mildew. Urgently do top dressing for your currants – add increased doses of phosphorus-potassium fertilizers to the ground and be sure to spray the bush with ash infusion (4 Kg on the 10 liters) and superphosphate100 g on the 10 l) or make an even simpler mixture: potassium permanganate (3 g) and potassium nitrate (50g).

But never use potassium chloride!

Enemy number two: ascochitis

The health of your currant can be undermined by such a common disease as ASCOCHITOSIS. If you notice that brown, brown spots with a dirty gray middle, and possibly black dots, have appeared on the leaves, stems and berries of currants, while the leaves have become fragile and dry quickly, this is ascochitis. Get ready to work on your currant health. It is urgent to spray the bushes with 1% Bordeaux liquid, collect and burn all the fallen leaves. And do not forget to dig up the soil in autumn.

Third enemy: anthracnose

Our vitamin sissy also has another no less terrible enemy – ANTHRACNOSIS. Be always vigilant and carefully watch the currant leaves. If suddenly small yellowish specks appeared on them, which rapidly grow and change color to brown, and at the same time the leaves curl and fall off; if there are yellow sores on the shoots, and tubercles on the berries – this is ANTHRACNOSIS. Anthracnose is a very insidious enemy of currants, it can calmly overwinter on fallen leaves, and in spring, with rains and winds, it can creep all over your site. So you are threatened to be left without currant compotes and preserves. There is only one way out in this situation: treating anthracnose with 1% Bordeaux liquid, spray every single bush, collect the fallen leaves and burn them, and be sure to dig up the soil.

What else threatens the currant?

It can cling to your currant, and in the future, a fungus called SEPTORIOSIS will take root on it. This fungal disease likes neglect and humidity. Under these conditions, Septoria blight gives itself free rein: it spreads over the leaves in the form of round corner spots, which gradually turn white with a narrow brown border and black dots in the center of the leaf. The fungus quite tightly clings to the currant and hibernates on its fallen leaves, and in the spring it grows in full force. It is imperative to order the plant, dig up the earth and feed it with mineral fertilizers (zinc, copper, boron, manganese) according to6 g on the 10 liters… And, of course, as always, for processing black and red currants, you will need a 1% solution of irreplaceable Bordeaux liquid.

Bordeaux liquid is also used in the fight against LANDSCAPE RUST. You can see the symptoms of this disease with your own eyes again on currant leaves. They become covered with yellowish blisters, which burst, and the leaves then turn brown and dry. Another type of RUST, only COLUMN, can also cause irreparable harm to your currant, however, its symptoms are somewhat different: abundant orange tubercles, consisting of spores, appear on the underside of the leaves, then outgrowths form in the place of the tubercle and the leaves fall off. Treatment will help with all kinds of rust: it is necessary to spray currant bushes with 1% Bordeaux liquid, burn the fallen leaves, and dig up the soil.

Well, if, instead of a brush, a green scaly terry twig is tied on your bush of red or black currants, no Bordeaux liquid will help here – the bush must be removed from your garden immediately and mercilessly.

The sultry, wonderful and such rare summer in the Urals has not yet ended, not all the harvest has been harvested. Emerald cucumbers, bright orange tomatoes still continue to ripen, and Victoria and raspberries have already worked for the glory of our belly, while currants continue to work to this day. Therefore, take the time to help your garden plants, feed them, heal them. Do not be frivolous, do not give currants to diseases and pests. The plant helps a person to fight many evil insidious diseases, eliminates many ailments, a person, in turn, must take care of the health of his green fellow. Do not wait for autumn, start from today, go out to the site, take an interest in the health of currants, carefully examine its leaves, berries, shoots, and if everything is in order, be calm about your future harvests!

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