Common sorrel diseases, the fight against them, a photo of an unhealthy plant

Common sorrel diseases, the fight against them, a photo of an unhealthy plant

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Sorrel is a real storehouse of vitamins. Its leaves contain large quantities of vitamins B, C and K, fiber, iron, phosphorus, potassium, which are vital for the human body. Therefore, it is often grown in personal plots. Unfortunately, sorrel is extremely versatile in diseases and pests. To grow a plant healthy, you should have an idea of ​​its most common diseases and methods of dealing with them.

Diseases of a plant with a photo

Next, it will be considered what pests and diseases sorrel can be affected by, how to deal with them and how to treat them, and the types of plant lesions are presented in the photo.


Downy mildew, known as downy mildew, most commonly infects young leaves of sorrel. It is a fungal disease.

It progresses more strongly in cold and high humidity conditions. Carried over with raindrops and wind. With peronosporosis, a gray-purple bloom forms on the leaves. They turn pale, begin to curl upside down, become brittle and wrinkled. As a result, the affected leaf dies.

Important! The disease persists on dead leaves. Therefore, to get rid of it, they must be collected and burned. When its first signs appear, you need to remove the affected plant.

Of the chemicals, gardeners prefer:

  • Previkur;
  • Speed;
  • Vitaros.

These drugs are applied once. Diluted with water in the proportion indicated on the package, most often it is 1:10. In addition, to fight the disease, you need to take 2 large tablespoons of dry mustard and combine with 10 liters of boiled water. Sorrel is sprayed with this solution twice a day, for a week. For the prevention of the disease, as well as the fight against it in the initial stages, sorrel should be sprayed with solutions of Bordeaux liquid and copper sulfate.


Rust that infects garden plants is of several types. In the temperate zone, Puccinia acetosae is most common. It manifests itself in the form of yellow-orange swellings. Over time, they burst and release bright orange spores, which are the carriers of the disease. It is equally likely to appear on the stems, petioles and leaves of sorrel.

Attention! The introduction of phosphorus-potassium supplements significantly reduces the risk of rust.

When the first signs of infection appear, diseased leaves should be carefully collected in a plastic bag, removed from the site or burned. Every two weeks, seedlings should be sprayed with a solution of copper sulfate or potassium permanganate. In the fall, the site must be dug up and mulched with humus and sawdust.

Besides, for rust treatment, you can use a mixture of 20 grams of laundry soap and 1 gram of copper sulfate. The resulting mixture is diluted in a liter of cooled boiled water. Used twice a day for a week. Also, chemicals such as Fitosporin and Plangiz help to fight rust. They are used as a solution, diluted in water in a ratio of 1:10.

Gray rot

Like most fungal diseases, it is most active at low temperatures and in the wet season. Rot manifests itself in the form of large brown spots, gradually increasing in size. Sorrel foliage softens, becomes flabby and watery, and quickly decays.

The disease spreads rapidly to nearby bushes. Therefore, at an early stage of the disease, it is very important to remove the affected parts of the plant in time. If the lesion is not severe, the seedlings can be sprayed with a solution of wood ash, ground chalk and copper sulfate.

The following fungicides help fight gray rot well:

  • Alirin-B;
  • Pseudobacterin-2;
  • Fitosporin-M;
  • Planriz;
  • Trichodermin.

These drugs are classified as biofungicides. This means that they contain substances that are safe for the human body, but destructive for spores and harmful fungi. Apply once a week for a month. To create a solution, 4 ml of any drug is taken and diluted in 10 liters of water. Of the more powerful chemicals, Fundazol and Topsin-M are most often used. These drugs are diluted in water in a ratio of 1:10.

To prevent gray rot, sorrel should be planted in well-lit and ventilated areas. It will be useful to periodically pollinate the soil around the sorrel with ash or lime at the rate of 10-15 g per bush. Mulching the ground with peat helps a lot.


Septoria or sorrel white spot is a fungal disease. It develops especially actively in conditions of high humidity. It affects the leaves, petioles and peduncles of the plant. It appears as light spots with a dark border. In some cases, the spots are gray-brown and the border is yellow. Gradually they grow until they occupy the entire surface of the leaf plate. After which the leaf dries up and falls off, and the stem turns brown and bends. Sorrel's immunity is greatly weakened, making it a target for other diseases.

To fight the infection, diseased leaves are destroyed. Plants are sprayed with medications or fungicides. Solutions with copper content are especially effective - copper sulfate, Bordeaux liquid. After harvesting, the land is dug up, fertilizers are applied. These funds are used once as a solution.

Attention! Spraying with Bordeaux liquid and copper sulfate will be useful. In this case, the concentration of the solution should be lower than that required to treat the infection.

For the prevention of septoria, humus and peat must be added to the soil. To get rid of this disease, you can grind a kilogram of red pepper and pour 10 liters of water, after which the agent is infused for 2 days. Sorrel is sprayed with this folk recipe once a day for 7 days.

Powdery mildew

One of the most harmful diseases of sorrel. It affects both the stems and leaves of the plant. It manifests itself in the form of a white bloom interspersed with dark dots of cleistocarps (fruiting bodies of the pathogen fungus).

For the treatment and prevention of infection, folk and chemical agents are used. From folk remedies, a solution of soda with laundry soap helps to cope well with powdery mildew. Chemicals are as follows:

  • Fundazol;
  • copper sulfate;
  • Topaz;
  • colloidal sulfur;
  • Bayleton.

These preparations are diluted with water in a ratio of 1:10, and then the sorrel is sprayed. When using folk remedies, you need to take a tablespoon of soda and a teaspoon of laundry soap, and then dissolve in 4 liters of water. With this agent, the affected plant is sprayed twice a day for 7 days. To prevent the development of the disease, it is recommended to spray sorrel with a 2% solution of copper sulfate.


This is a fungal disease that affects sorrel exclusively. Ovulariasis manifests itself in the form of small, gray-brown spots with a light center and a dark purple border. Over time, they increase in size up to 10-15 mm and merge. The infected part of the leaf dries up and falls off. On the underside of the leaf, the spots are brown. In wet weather, a light gray bloom appears on them.

Reference. To prevent infection, sorrel should be thinned, weeded and watered in time. It will also be useful to periodically spray the plants with a 1% solution of copper sulfate.

To combat the disease, the affected leaves are destroyed. After cutting, do not plant sorrel again in the same area for at least 4 years. After the affected sorrel is cut off, healthy plants are treated with Fitoverm, 4 ml of the drug is taken per liter of water. One-time processing.

As you can see, there are many diseases to which sorrel is susceptible. And he has even more pests. However, if you notice the incipient disease in time and take the right preventive measures, then the harvest will be saved and you will enjoy the entire summer season.

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