Peonies delight in spring with bright flowering. In the Middle Kingdom, where the flower comes from, the plant is cultivated as a medicinal plant and is used in landscape design. It is believed that the peony protects from evil spirits and has magical qualities. The light-loving plant is easy to care for, but it is important to monitor its health.

Diseases of peonies

Often, peonies are exposed to viral or fungal phyto-diseases.

Common infections that cause fungus include:

  • rust;
  • gray rot;
  • types of spots.

Peonies

The ring mosaic of foliage belongs to viral pathologies.

On a note. Flower crops are usually infected with multiple viruses, making therapy difficult.

Among the harmful insects that like a peony are:

  • ants;
  • aphids;
  • caterpillars;
  • bronze.

Causes

Reproduction of peonies

High humidity provokes fungal diseases of peonies. Infection of peonies with gray rot occurs during unfavorable weather during the spring and summer seasons. Humidity and heat are the main causes of rust. The danger of fungus is increased by an excess of nitrogen and thickening of the plantings.

Diseases of peonies

Meteorological conditions do not play a special role on the growth of viral ailments.

It is generated by:

  • proximity to diseased vegetables and fruit plants (tobacco, raspberries, cucumber);
  • contact with garden tools;
  • contact with the ground;
  • spread by parasites.

Symptoms

Gray rot is a dangerous fungal disease that completely affects the flower. It is found early on sluggish young branches in early spring. Later, the formation of gray plaque on various organs of the culture and brownish spots on peonies around the peduncle in the zone of the root collar are added to the symptoms.

Disease symptoms

Dahlia pests and diseases

They recognize rust on peonies by brown or reddish spots on the foliage, which consist of fungal spores. Powdery mildew is indicated by a white bloom at the top of the leaf plate of adults.

On a note! Viral diseases are manifested by specks, light stripes, necrotic blotches.

Treatment

Delphinium (diseases and treatment)

It is important to start therapy for infected plants on time. Rust is dangerous because the spread of fungal spores occurs with the movement of the wind and generates infection of other crops. Timely removal and elimination of diseased foliage, spraying of bushes with 1% Bordeaux mixture are appreciated. The liquid is used to spray the peonies in the spring to prevent gray mold infestation. For prevention, they fight against ants - carriers of the disease. If an infected area is found on the bush, it is immediately cut out and destroyed, the peony is sprayed with a suspension of Tiram (0.6%).

Powdery mildew is resisted by spraying plants with sodium carbonate solution (0.5%). Peonies are processed twice, observing a 10-day break between procedures. Figon's solution (0.2%) is effective in fighting powdery mildew.

Spraying peonies

Diseases for which viruses are responsible are not cured. Affected peonies or areas are removed from the flower bed and destroyed. In such a situation, the main method of struggle is prevention. It is required during the growing season to weed out weeds in the front garden - a focus of infection.It is necessary to keep garden tools clean: be sure to disinfect with a solution of potassium permanganate after pruning diseased flowers.

It is important to remember about pests, which are the cause of the development of viral pathologies. Therefore, they take timely preventive measures and treat the plants with pesticides.

Peony disease

Like garden plants, peonies get sick. Sometimes phyto-diseases have a viral or fungal breed. It is important for flower growers to understand the diseases of peonies and in their treatment, especially when rolling the leaves.

Watching the video will allow amateur flower growers to understand the causes of the ailments of peonies and take adequate measures to heal them.

Gray rot

The development of gray rot usually occurs at the end of spring. In the process of illness, foliage loses its freshness, mold appears everywhere.

Gray rot on peonies

Manifestations

  • brown spots on peony leaves, wilting and drying of plants;
  • the appearance of a grayish coating on dark spots in conditions of warmth and humidity;
  • the acquisition of a bloom of a black shade at the bottom of the stem and its break-off and fall;
  • decay of buds, flowers, shoots.

Causes

  • separation of fungal spores by color;
  • excessive humidity, shaded plantings, poor ventilation;
  • surplus nitrogen fertilization.

The disease threatens the entire plant: branches, leaves, buds are infected. The diseased flower sneezes and dies. Damp bad weather conditions the rapid spread of gray rot.

Treatment

The affected areas are immediately excised and destroyed. At the onset of the spring season, the bush is treated with 1% Bordeaux mixture.

Bordeaux mixture

Ways to preserve flower health include prevention:

  • choose varieties that are not susceptible to harmful microorganisms for cultivation;
  • planted in a lighted flower bed with permeable and loose soil away from trees and shrubs;
  • when planting, check the roots and remove rotten roots with a sharp disinfected device, lubricate the wounds with brilliant green or sprinkle with charcoal;
  • warm up the root system of peonies for 10-12 minutes in water heated to +60 .. + 70 ºC, dry, then plant in the holes, sprinkling with ash;
  • avoid the introduction of nitrogen after flowering plants;
  • carry out a short pruning of peony shoots for the winter;
  • periodically loosen the soil.

In the fight against peony rot, they resort to fungicides:

  • Soon and Pure Blossom;
  • Mikosan and Maxim;
  • Vectre and Planrizu.

Rust

If the leaves on the peony turn red, and a bloom has appeared, the plant suffers from rust.

Rust

Manifestations

  • damage to the leaves: the formation of brown uneven spots, and on the underside of the leaf - pads with fungal spores;
  • redness of the leaves;
  • premature bushes turn yellow and dry;
  • winter badly;
  • grow poorly next year.

If measures are not taken, the disease is quickly transmitted to other cultures. With the flowering of peonies, the disease progresses. Fungi of this type have increased cold resistance. With the arrival of spring, rust doubles its activity and can destroy an entire flower garden.

Causes

The rust fungus is responsible for why the leaves of peonies turn red. It develops in the middle of summer on a pine tree, where it stays on its legs and hibernates.

With the flowering of peonies, the disease progresses

Treatment

It is useful for summer residents to know why a peony has red leaves and what to do in this case. The following measures are taken:

  • remove the affected leaves;
  • collect and burn vegetation waste;
  • dig deep into the soil;
  • in early spring, when shoots appear, the upper 2-3 cm layer of earth is removed and fresh soil is poured, which is mixed with sand;
  • sprayed with a solution of ammonia or tar soap: for 10 liters of liquid 3 tbsp. l. facilities.

If the disease intensifies, use fungicides:

  • Bordeaux liquid, which is prepared from 10 liters of water with the addition of 100 g of lime and copper sulfate;
  • colloidal sulfur (100 g per 10 liters of water);
  • copper chloride (per 10-liter bucket 40 g).

Copper oxychloride

Rolling the leaves

Peony bushes react sharply to watering.Lack of moisture or excess has a negative effect on the culture: the leaves of the plant can curl, or root rot develops.

Causes

  • insufficient illumination;
  • potassium deficiency in the ground or soil voids;
  • damage to the roots by harmful insects;
  • exposure to viruses and fungi.

Rolling the leaves

Treatment

Sometimes it is difficult to find out why the leaves of peonies suddenly curl and what to do. If foliage curls in the absence of damage and stains, the reason lies in improper care of the plant. You should not use chemical preparations, it is enough to tweak the care of the peony.

If you twisted the leaves of a peony, and the rhizome turns black as a result of the disease, then:

  • when transplanting bushes in September, diseased roots are removed, carefully cut off rotten root areas;
  • sprinkle the cuts with coal powder, which is mixed with Fundazol or sulfur in a 2: 1 ratio;
  • carry out a 30-minute sanitization of the root system using chemicals: 1% copper sulfate, 1% TMTD, 2% Fundazole or a mixture of 0.6% TMTD and 0.2% Fundazol;
  • when planting, they try not to deeply deepen the rhizomes and cuttings, spilling with a mixture of Tsineb and Fundazol or TMTD;
  • during the growing season, Fitosporin-M and Alirin-B, Gamair and Aktofit are used.

Pests of peonies and the fight against them

When peonies are left unattended, the bushes are attacked by harmful insects. Photos will help establish how to deal with pests and improve peonies.

Bronze beetles

The beetle has a yellow back with a golden tint. The period of activity of the parasite falls in May and lasts until August. It eats petals, tree branches, peony foliage.

Bronzovik beetle on a peony

What to do

To get rid of bronzers requires:

  1. Loosen the soil at the end of the summer season, when the parasites pupate.
  2. Every day in the morning, beetles are collected by hand.
  3. In the budding phase, the bushes are sprayed with infusion of tomato tops or with chemical preparations.

Gall nematodes

Pests are characterized by predominant damage to plant roots. Nematodes are recognized by nodular swellings where small worms are located.

What to do

To prevent parasites from harming other individuals, you will have to:

  • eliminate and burn infected peonies;
  • disinfect the soil with Formalin (1%);
  • carefully choose the material for planting;
  • dig deep into the ground before planting flower bushes;
  • dispose of the remains of vegetation when cleaning the garden.

Gall nematodes

Turf ant

Harmful insects with a yellowish-reddish body will surely appear on peonies because of the sweet syrup, which attracts ants. Pests gnaw the edges of the petals along with the leaves.

What to do

In opposition to ants, flower crops are sprayed with repellents, as well as the soil around the bush.

To ward off parasites, chopped garlic cloves or chopped onions are laid out under the bushes. Rubbing the stalk of a peony with garlic gruel is good, the smell of which will not be to the liking of pests.

Sod ant on a peony

Summer residents practice spraying with decoctions of aromatic crops:

  • wormwood and tansy;
  • mint and lavender;
  • bay leaf and anise;
  • needles and parsley.

Processing peonies in the spring from diseases and pests

In order to prevent, with the arrival of spring, a number of measures are carried out in a comprehensive manner, which are aimed at protecting against pests and phyto-diseases.

The processing of bushes in spring provides for three times spraying of peonies with fungicides during the growing season:

  • when germinating;
  • at the stage of budding;
  • after flowering is complete.

Flower processing in spring

For preventive manipulations use:

  • 0.1% Maxim;
  • 1% Bordeaux mixture;
  • 0.1% Topaz;
  • 0.2% Fundazole;
  • 0.5-0.7% copper oxychloride.

To spray one plant, 2-3 liters of solution are consumed.

On a note. After the snow melts, many gardeners water the soil with a solution of potassium permanganate, using 1-2 g per 5-6 liters near the peony to protect against fungal infection.

Gardeners in the battle against gray mold recommend watering the land under the peonies with Fitosporin every 14 days, starting with the shoots.When the buds are formed, the bush is completely poured from the watering can with the solution. The operation is performed in the evening, when the yard is dry.

Folk remedies

The celandine recipe is popular among folk remedies. For cooking, you need 0.5 kg of fresh grass, which is placed in 5 liters of boiling water and infused for 2 hours. Sick peonies are sprayed with the filtered tincture, the procedure is repeated at intervals of 5 days.

Celandine for the treatment of peonies

If necessary, spraying with antifungal drugs is carried out every 10 days until the symptoms of the disease disappear.

Biological preparations

Biological products are distinguished by their productivity in the battle against phyto-diseases of the peony:

  • treats rust Extrasol-55;
  • protects against gray mold Glyocladin;
  • fights rust, annular sheet mosaic, gray mold Alirin-B.

The drug "Glyocladin"

Prevention of diseases and pests of peonies

To prevent phyto-diseases of peony, it is recommended to adhere to preventive measures:

  • observe agrotechnical rules for watering and loosening, fertilizing and weeding;
  • use healthy seedlings for planting;
  • purchase varieties of peonies that are resistant to diseases;
  • process the bushes 3 times with chemicals per season;
  • keeping garden tools clean.

Peonies are not particularly demanding in care, therefore, many owners of personal plots prefer these flowers for their decorative properties. However, sometimes plants are affected by harmful insects and diseases. In the fight against pests, flower growers will be helped by a description of the symptoms of diseases, as well as the means used that will solve the problem and make the flower garden even more beautiful.