General information

Diseases and pests of peonies: looking for ways to protect flowers

Peonies, when compared with other garden flowers, are quite resistant to various ailments. But they can get sick and be attacked by harmful insects. Among pest insects there are not too many enemies. But the diseases that can hit these luxurious flowers, quite a lot.

CONTENT:

  • Diseases of peonies and their treatment
  • Peony pests and control
  • Drugs for fighting diseases
    and pion pests
See also:
  • Peony breeding methods
  • How to transplant peonies
  • The best varieties of peonies
  • Planting peonies in open ground
    and care for them

All the misfortunes that can be subjected to peonies, it is very important to recognize and promptly eliminate. After all, they have a strong influence on the decorative qualities of the flower, and on its vital activity in general.

In this article we have described the main diseases of peonies and pests of these flowers, as well as ways to prevent and combat them.

Diseases of peonies and their treatment

Diseases that can harm the flower can be divided into the following categories: fungal and viral.

The main cause of the development of fungal diseases of peonies is high humidity. So, cultures are affected by gray rot in the conditions of cold rainy weather in spring and summer. But the wet warm weather contributes to the development of rust. Factors that increase the risk of fungal diseases are also excess nitrogen in the soil and significant shading of landings.

Viral diseases affect peonies regardless of weather conditions. They can be transmitted from other vegetable and fruit crops, such as tobacco, cucumber, raspberries, through common garden tools, soil contact and spread by insects.

Gray rot of peonies

Or Botrytis. This disease is among the most dangerous because it affects all parts of the plant: the stems, leaves, and buds. If young shoots wither on peonies in spring, then gray rot most often becomes the cause. As the disease develops on the plant, you can find a gray patina (mold).

Also, the disease can be identified by brown spots around the stem near the root collar. Ailing peony eventually withers and dies. Especially fast gray mold spreads in wet cloudy weather.

Fighting gray rot peonies

Sick areas need to immediately cut and destroy. In winter, the stalks of the plant should be cut short. In the spring, it is desirable to spray 1% Bordeaux liquid. Also one of the methods of prevention - the fight against ants that are capable of carrying diseases. If the gray rot has already manifested itself, it is necessary to shed peonies with a 0.6% Tirama suspension and pre-cut all the affected parts of the plant.

Peonies Rust

Rust on peonies is very easy to distinguish from many other diseases characteristic of this plant. The leaves of the diseased specimen are covered with brown, ornamental or reddish spots-pads, consisting of fungal spores. If time does not take action to eliminate the disease, disputes will be spread by wind, and the disease will be transmitted to other plants.

Peony rust control

To save peonies and prevent the spread of rust, it is necessary to timely remove diseased leaves and burn them. Also, the plant should be sprayed with 1% Bordeaux liquid.

Peony leaf mosaic

This viral disease manifests itself as spots on the leaves of peonies. In an annular mosaic, the leafy plates of plants are covered with light green stripes alternating with dark green, which thereby create a mosaic pattern. Also, when this disease on the leaves of peonies may appear necrotic spots of small size.

Fighting peony leaf mosaic

The disease is not treatable. Sick copies must urgently be removed from the flower bed and destroyed.

Peony Powder Dew

Most often powdery mildew ill adult peonies. Identify the disease can be whitish on the top of the leaves. Fortunately, the disease does not bring too much harm, but you still need to fight it.

Peony powdery mildew control

Peonies with powdery mildew should be sprayed with a 0.5% solution of soda ash with the addition of soap. After 8-10 days after the first treatment, you need to hold the second. Also in the fight against powdery mildew on the pion helps spraying 0.2% solution of "Fiona".

Lemoine's disease

The causes of this disease in pions are unknown. It can be determined by the following signs: the plants become shallow, the shoots develop weakly, there is no flowering, on the roots (which also grow badly) swelling may occur. Lemoine's disease is easily confused with peony damage by a gall nematode. Because of this, there is even an opinion that a pest can cause a disease.

The fight against Lemoine's disease peonies

A plant affected by Lemoine’s disease cannot be cured. It must be removed from the flower bed and destroyed to prevent the spread of the disease.

Verticillary wilting peonies

Most often, this disease makes itself felt during the flowering of peonies. If the plants look healthy, but for some unknown reason, the leaves and the stems start to wither away - most likely, the flowers wither away from verticillous wilt.

The pathogen penetrates into the plant. Determination of wilting is possible by darkening vessels in the cross section of the shoot. It is difficult to get rid of the disease, because the pathogen is capable of hibernating in the roots or root neck.

The fight against verticillary wilting peonies

It is impossible to save the plant, it must be dug together with the earthy clod and burned. A pit formed after digging up a patient specimen should be shed by bleach or formalin.

Peony leaf spot

Fungal spores are visible on the underside of the leaves, along the edges and on the tips, and blue, purple or light brown spots form on the upper side in these places.

The fight against peony leaf spot

Sick plants must be destroyed. To prevent the disease helps sparse planting bushes and moderate nitrogen fertilizer. In wet weather, with the threat of mass infection, pions should be treated with 1% Bordeaux liquid.

Peony root decay

Peonies are also affected by pathogenic fungi from the genera Fusarium, Sclerotinia, Rhizoctonia, Phytophtora. Diseases are rare and it is quite difficult to distinguish between different rot. Externally, the disease is manifested in the sudden blackening of the stems and their withering in the middle of summer. Dug roots look brown, softened to mucus, emit an unpleasant smell. Affected bush dig and destroy.

Fighting root rot pions

Preventive measures include: the use of healthy planting material, proper planting, the use of potassium phosphate fertilizers and trace elements, the use of fungicidal preparations, if necessary: ​​copper sulfate, Homa, Fundazole (0.2%) and others listed in the table below.

Ants on peonies

Ants are considered pions of pions referring to the fact that they suck the juice from the buds and, settling under the peony, destroy the plant. But experienced gardeners believe that if there is harm from ants, then it is quite small. During the budding period, ants feed on nectar, which is located on the bud. If it annoys you, wash the buds with warm water. In recent years, a new population of ants has appeared, which settle on buds and severely deplete them, preventing flowering.

Fighting ants on peonies

To get rid of ants on peonies as quickly as possible, you need to spray the buds with a solution of "Fufanon." With regard to the settlement of ants under a peony, this means that the plant is seriously hurt and rotted. And ants are not the cause, but a clear signal of trouble. Ants do not settle under healthy peony. We'll have to dig such a plant and understand on the spot.

Aphids on peonies

These small greenish insects accumulate on the tops of the shoots, around the buds, flowers and drink the juices from the plant. With a large accumulation of aphids, the plant quickly weakens.

Fighting aphids on peonies

With a small amount of aphids, it is enough to collect pests manually or remove them with strong water pressure (you can use a soap solution). If there are many insects, it is necessary to treat Peonies with "Fitoverm" or "Aktellik" (according to the instructions).

Gall nematodes on peonies

These pests mainly damage the pion roots, causing galls to form, resembling balls of 3-5 mm in diameter. They are especially noticeable at the ends of the roots. Nematodes, microscopic worms, multiply inside the galls, and then penetrate the soil and infect other roots. Plants are stunted and stop blooming. Nematodes can be recognized by knotty swellings. In them, these little worms and localized.

The fight against nematodes on peonies

Unfortunately, nothing remains, how to remove from the site and burn the affected plants, so that the nematodes do not spoil other bushes. After that, the soil should be disinfected with 1% formalin solution. To prevent the occurrence of this dangerous pest, it is necessary to carefully select planting material, dig the soil deep before planting and dispose of all plant debris when cleaning the site.

Bronzovka on peonies

This beetle with a golden yellow back is especially dangerous from May to August. He eats petals, stems and leaves of peonies.

Fighting bronze on peonies

To get rid of bronzovki, more often loosen the soil at the end of summer (during the pupation of the pest). Every morning in the morning, collect beetles by hand. During the budding can be sprayed bushes infusion of tomato tops or chemical insecticides.

Peppy hop hop

For peonies are dangerous the caterpillars of this insect. They eat the roots of the plant. As a result, peonies stop growing and bloom poorly.

The fight with hop pepkopryadom on peonies

It should regularly loosen the soil under the plants and remove weeds. When pests are found, it is necessary to spray the bushes with the preparation Spark (according to the instructions).

Root rot

The presence of this disease indicates a sudden blackening of the stems. As a rule, gardeners notice this when suddenly in the middle of summer a bush of peonies or individual stems begin to wither. If you dig up the root of a plant at this time, then you can see that it has become brown, soft and has an unpleasant putrid odor.

Most often this disease appears due to high humidity, increased acidity of the soil.

Treatment: the roots of peonies dug, cleaned and treated with an aqueous solution of potassium permanganate. In places of cuts fall asleep with a dry mixture of ash and Fundazole. The shrub is planted elsewhere, sprinkling the pit with compost or humus mixed with ash, in non-acidic soil. Other bushes, remaining in the same place, are treated with fungicidal agents, so that the infection will not damage them.

These pests weaken the plant, can carry the virus, as they are its carrier. To eliminate such insects, sprinkle ashes on the bush or process it with a solution of household soap. If they are divorced in a very large amount, they spray the peonies with chlorophos, vitriol or karbofos.

Gallic nematode

Insect larvae penetrate deep into the root, on which galls (balls) of about three millimeters appear as a result. Inside these formations are small worms. Penetrating into the ground, they hit other plants.

Taking away the vital forces of the bush, they lead to the fact that the leaves are deformed, become too light, the buds are very small, and the flower itself grows slowly or does not develop at all. As a result, the plant may even die.

It is very difficult to destroy these pions of pions, and the fight against them comes down mainly to the removal and burning of the bush. The soil should be sprayed with formalin solution.

The most undesirable, but unfortunately, the most common parasites on peony bushes. During the flowering period, these insects feed on nectar. They can bring aphids behind them, so that by not allowing the development of the ant population on the bushes, it can also prevent the appearance of aphids.

Often ants settle under the bushes. This means that the plant is sick, putrid processes occur. These insects do not live under healthy peonies.

To kill the ants, the soil and plants are sprayed with chlorophos or karbofos. Also any remedy-repellent will do.

Fungal diseases of peonies

Gray Rot (Botrytis)
Distributed in rainy, cold weather, usually in spring or closer to autumn. Young shoots are affected by rot at the very roots and fall. If the stems are already strong, dark rings appear on them. They literally eat away healthy tissue and the stem breaks. Leaves, buds, sepals, flower petals at the very base are also affected by gray-brown spots.

Treatment - treat peonies for diseases, and above all, from gray rot, can be fungicidal preparations, these are copper-containing agents, foundationol, colloidal sulfur. Spraying is carried out at the very beginning of spring, and then two more times with an interval of 10-12 days. You can do the treatment in turn with different drugs: Bordeaux mixture (100 grams of copper sulphate and lime per bucket of water), then a solution of copper oxychloride (40 grams per bucket of water) or colloidal sulfur (100 grams per 10 liters of water).

Root rot
The disease manifests itself unexpectedly - leaves turn black at the peonies, starting from the tips, and then the stems. The roots rot, decompose, the plant gradually dies off.

Treatment: dig up the roots of peonies and thoroughly clean the rot, immerse them briefly in the solution of the drug Maxim. The slices should be powdered with ashes mixed with the foundation in the proportion 2: 1. Then plant a bush to a new place according to all the rules, mix compost or humus with ashes and bone meal in a pit of 60x60 cm, fill the pit with fertile and non-acidic soil, re-root the rhizome by 4-5 cm. Prophylaxis for the remaining bushes.

Rust
Pions appear to rust, usually after flowering. Brown spots with a purple border appear on the upper part of the leaf plate, red seals appear from the inside, in which spores mature. The leaves of peonies curl, the affected bushes weaken, frosts with difficulty, bloom poorly. Rust is treated the same way as gray mold - fungicides, only the interval between sprays is shorter - 7-10 days. Sick leaves must be removed and burned.
Peony spotting - in the photo Peony spotting - kladosporiosis, phyllostikosis, septorioz
These are different types of spotting, but they are all caused by fungi. Kladosporioz is also called brown spot, and septoria is brown - there are spots of brown or yellowish color on peony leaves, they can be with a violet or dark border. The leaves dry, and after them the shoots. Spore carriers are attached to the inside of the leaves, which can overwinter even on a cut plant.

Treatment: Peonies are sprayed with Bordeaux mixture, copper chloroxide or phytosprorin-M. Affected leaves and stalks are cut and burned.

Mealy dew
This disease is also caused by a fungus from which adult peonies already suffer. White untidy bloom on the leaves - this is the mycelium with spores.

Treatment: this soap is also treated with soap. To do this, prepare a 0.5% solution of soda ash, which is added to the soap. Sprayed in two steps, the second treatment is carried out in 7-10 days.

Pion pests

Gallic nematode. If a peony bush develops poorly, grows slowly, has small flowers, leaves are deformed, and their color is too light, then most likely it is struck by a gall nematode. The larvae of this parasite penetrate into the roots, the plant is oppressed and may die. Sick plant is better to dig and burn. The soil must be treated with formalin (1% solution).

ants on peony - in the photo

Aphid. Large clusters of aphids weaken the plant. In addition, aphid, like a nematode, is also a carrier of viruses. To combat aphids there are folk remedies - you can sprinkle the bush with ashes, spray it with a solution of laundry soap. If there are too many insects, treat the peony with Carbofos, Chlorophos or Iron Vitriol.

Ants - frequent residents in the bushes of peonies, which bring with them an aphids, therefore, to get rid of ants, means not to allow them to aphids on beautiful bushes. The means listed above can be used if the peony is attacked by turf ants, thrips or rapeseed beetle.

Preventive measures:

Diseases of pions and their treatment can never complicate the life of a grower, if you take preventive measures. The high acidity of the soil and the excess of nitrogen, heavy soil, the proximity of groundwater, thickened plantings contribute to the development of diseases. Therefore, the soil must be deoxidized and loosened, if necessary, drain the area. Add sand to clay soil. Plant plants at a considerable distance from each other.

In the autumn it is necessary to cut the stems and burn them. Particularly careful to destroy the affected parts of the plant. As a preventive measure, spray the fungus with peonies starting in early spring. Feed the bushes with microelements and phosphorus-potassium fertilizers.

Sometimes growers ask why peonies' buds dry out if the plants have no signs of disease? The reason may be bad care: the soil is overdried, poor in trace elements. Therefore, regularly feed and water the bushes.If they weaken, then the diseases of peonies and their treatment will give you much more trouble than all preventive measures.