On the leaves of the rose are black spots: what to do and how to treat?

Any gardener dreams of a beautiful, fragrant and healthy flower garden. Especially pleasing are the gorgeous and bright roses. But the cultivation of these capricious colors can not be imagined without problems. Very often, various diseases, viruses, fungi and insects spoil the appearance and even ruin the royal flowers. On the leaves of the rose, black spots appear frequently. What is it and how to get rid of the misfortune?

Why does a black spot appear?

On the leaves, fallen from the stems, and diseased shoots, a parasitic fungus can settle. He is the causative agent of this disease. The fungus can even overwinter on the shoots, and in the spring the grower will see black spots on the leaves of the rose. At this time of year humidity is always increased, so the fungus feels excellent and can quickly develop a "war". But it is worth remembering that if the flower was infected in the spring, then you can see it only in a month (when the weather is hot faster). If there are black spots on the leaves of roses, then it is worthwhile to think about the inadequacy of the potassium plant.

Symptoms of the disease

The gardener may not notice the infection of the rose at once, but if the first signs have already manifested, the development of the fungus will go very quickly. It is important to take urgent measures. Not very aesthetically look black spots on the leaves of the rose. Than to treat a fungus will be told more low.

The disease begins with the appearance of brown spots with yellow edges on the leaves. Over time, the leaves completely turn yellow and fall off. The fungus also passes to the stem, which turns yellow, darkens and fades. As a result, the rose bush ceases to bloom and becomes unaesthetic.

What can a floriculturist do to prevent infection of the rose?

• Roses are whimsical flowers that require proper care. Do not forget about their pruning, this procedure makes them resistant to external factors.
• It is important to remove the dried parts of the rose bush in time and burn them. It is better to do this at a distance from the flower bed.
• Basal territory is important to constantly weed and loosen.
• If the summer turned out to be too rainy, you can sprinkle the soil around the roses with ashes.
• Experienced gardeners spray roses with special compounds, as well as infusion of horsetail, mullein.
• Do not forget about the processing of the garden tool with disinfectants.
• And, of course, the place of planting the queen of flowers! It should not be shaded.

On the leaves of the rose are black spots: what should I do?

A gardener, zealously referring to his blooming favorites, can notice the appearance of a fungus-parasite on them in time. If signs of black spotting are found out - it is necessary to act immediately, until the disease spreads. Be sure to cut the damaged parts of the flower. If you see black spots on the leaves of the rose in the initial stage, use the horsetail infusion. Prepare it this way: 150 grams of dried herbs are poured with a bucket of water, insist 24 hours, then boiled and filtered. Proportions for breeding infusion of water: one to ten.

Every 10 days the bush needs to be treated with sulfur-containing products. Means that have copper in their composition, also do a good job of parasitizing fungus. In autumn, roses are treated with 5% vitriol, and in spring and summer a soap-copper solution is used. If the leaves of the rose in black spots, which are already far apart, treatment is required more thorough. You need to buy a Bordeaux liquid and gently treat the rose bushes every week. The soil next to the rose is important to water this same liquid. Use the product very carefully, since it is very toxic.

What other means can you cure a black spot?

In specialized stores you can purchase products that contain triazole and mancozeb. In order to obtain an excellent and long-term result, these funds are used in turn. First, within a week, roses are treated with a mancozeb (for example, "Profit"). Then comes the time of preparations with triazole (Topaz, Skor). This liquid shrubs are also processed a week (every day).

They process roses in the evening. In the morning, you can not do this because of the rose on the leaves, and in the afternoon - because of the possible heat and direct sunlight falling on the rose leaves treated with the means.

Preventive measures against black spotting

Infected rose bushes are very difficult to cure, so it is better to take preventive measures to prevent the appearance of this fungus. Start the fight with the right purchase of seedlings. Acquire roses in proven places, seedlings should have all the necessary certificates and documents. Pay attention to the variety of roses - many of them have resistance to the appearance of black patches, a kind of immunity.

When the purchase is made, think about choosing a place for planting seedlings. This is a very important condition, because the rose is a whimsical flower. It is not necessary to plant roses in the place where these flowers were planted less than 5 years ago (or any other diseases that are associated with roses similar to roses). Properly care for the flower garden and constantly inspect them for the appearance of something strange. If you see that, the leaves of roses are covered with black spots, start treatment immediately! A rose can quickly die from a harmful fungus.

Other types of spotting roses

The queen of flowers can suffer not only from black spotting. How can we recognize other types of disease?

• Cercosporosis is a brown spot. With this kind of damage to the flower, its leaves cover brown spots. Their size is approximately three millimeters, around the brown spot, you can usually see a rim of dirty red color or a touch of greenish color.
• Septoria - affects roses with patches of white or dark brown color. On the spots are clearly visible points of congestion of fungi.
• Sphaelic is black or dark red spots. Around each speck there is a red border, which gradually becomes lighter.
• Perenoplosis are large brown spots. Their shape can be different, but the stains quickly dry. A distinctive feature of this type of patchiness is the grayish coating on the reverse side of the rose leaf.

Measures to control these species of spotting are almost the same as treating black spots on the leaves of the rose. A constant check of the bushes and preventive spraying will help protect the plants.

If you see black spots on the leaves of the roses, do not delay! Otherwise, the plant can simply throw all the buds to the ground. If the fungus is started, the rose may even die. Do not forget about timely watering, pruning, mulching, loosening the soil and weeding. Rosary needs constant careful care, only then flowers will please the gardener's eye.