Any change in the shape and color of leaves currant, the appearance of stains on them should alert even the most inexperienced gardener. After all, this is evidence of some disease, and the sooner the cancer is detected and appropriate action taken, the more chances to preserve the harvest, and the Bush.
So, red spots on the leaves of the currant, as a rule, evidence of fungal disease. The size, shape and distribution pattern to understand the infected plant. If you noticed in the spring on branches of red bumps, and by the summer the leaves began to turn brown and dry out, the shrub is infected by tubercularia. This disease spreads from one shoots the other, quietly tolerate the winter cold. Therefore, to get rid of it if you remove and burn all infected branches and leaves. To prevent its development in early spring all the shoots it is desirable to spray with copper sulfate.
If you saw on the leaves of currant red spots without distinct edges, it is likely that the plant is damaged by askohitozom. Initially, the center brightens brown spots, cracks, and dead part of the leaf just falls out. The fungus causing this disease can easily tolerate the winter in fallen leaves. To prevent infection is possible if the early spring to carry out the spraying with copper sulfate. But remember, the procedure must be repeated twice: immediately after flowering and after harvest. All fallen leaves must be collected and burned and the soil under a Bush to dig.
But Anthracnose on black currant can flow a little differently. Only in the second half of the summer may appear whitish or red spots on the leaves of currant, unevenly scattered throughout the records. They are not large, the middle almost never falls, and closer to fall on the affected area and formed fruiting bodies in which to spend the winter mushroom.
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Red spots on the leaves of the currant may indicate its infection columnar rust. Disease manifests itself in the middle of summer appeared yellow spots turn brown fairly quickly, on the underside of the leaf blade are formed of the orange pads with the spores. If the disease spreads rapidly, the leaves wither and fall prematurely.
Small, rounded or angular red spots on the leaves of currant – this is a clear sign of Septoria. Over time, they become lighter, but their border remains brown. The disease affects not only shoots, but the berries. He massively dry and fall off the leaves of the plant, and the yield is significantly reduced. Prevent infection by using spraying shrubs in early spring with copper sulfate. But if it was not done on time, and currants were infected with Septoria leaf spot, the soil under the bushes should be dug, and the fallen leaves to burn. These same techniques should be used if currants infected with Cercospora. It is characterized by the formation of brown spots with dark center and bright edges, which increase in size, merging into one.
If you find any diseases, it is necessary to take all the necessary measures. When you do this, be aware that, despite all their contained nutrients, it is better not to use the infected currant leaves. Their properties are, of course, remain, but you will eat and mushrooms, which was infected shrub.
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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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