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Fight against pions diseases and pests

Treatment of peonies in the spring and summer of diseases and pests is the primary measure to combat these evils. Most often, these plants are damaged by sulfur and root rot, rust and ring mosaic. Gall nematodes and ants do not less harm to pions. To protect the culture from infections and pests or to cure diseases that have already developed, there are many drugs, and you will learn about the most effective of them from the table on this page.

Treatment of peony for gray rot

Gray Rot (Botritis) For any inquiries, We're here to answer you. Botrytis paeonia oud - the main and most massive disease of pions in our strip. As a rule, the symptoms of gray rot appear on pions either in spring (in central Russia - in the third decade of April, especially intensively - in the wet season), or in summer - in early autumn (when it rains and high air humidity is maintained, with increased acidity of the soil). , excess nitrogen fertilizers, heavy clay soils, high groundwater levels, thickened plantings, unventilated areas).

The most dangerous for plants is the spring outbreak of the disease, at the time of active growth of shoots.

As seen in the photo, with this disease in peonies grow quickly at this time, shoots with very soft tissues are affected at the point where stems exit the ground:

On the side of the stem appears rotten dark area. Very soon the stem falls. Black sclerotia can be seen on rotting tissues.

In other years, at high temperatures during the period of active growth, gray decay of pions affects the stems in the middle part: the plant bends in this place, the tip fades. If the ground is gently otgresti on the underground part of the damaged shoots will be noticeable damage to the base of the stem botrytis. It is believed that this is the result of a short spring, quickly turning into hot weather in May.

After sufficient growth and hardening of the tissues of the stalks, in the third decade of May, the stunted and weak stalks are mainly affected.

The second time the appearance of the disease can be observed in the summer-autumn period. Buds, sepals, petals (at the base) rot, brown spots with a gray bloom appear on the leaves, stems and leaves darken and dry. When the stalk is cut, it is visible brown rings.

We note once again that the cold season, rains and high humidity contribute to the external manifestation of botrytis. Practically in any adult plant, to some extent or other, traces of botrytis are noticeable on the underground part: on the remnants of last year’s stems and in the zone of their transition to rhizome, on the old, beginners die off, the roots. But if the culture is properly maintained, its external manifestations will be absent or insignificant throughout the life of the plant.

For the treatment of gray rot peonies need:

  • compliance with the rules of planting and plant maintenance;
  • periodic introduction of deoxidizing additives to the soil (bone, dolomitic, limestone flour);
  • removal and destruction of damaged plant parts;
  • mandatory and timely full pruning of the stems in the fall;
  • limited use of nitrogen fertilizers;
  • the use of fungicidal drugs and agents for the prevention and suppression of the disease.

Most of the fungicidal preparations produced by the chemical industry are suitable for the fight against botrytis. Among them have long been known and tested: all copper-containing, basezol, colloidal sulfur. Terms of their application: in spring, at the beginning of active growth of the stems, in our strip in the third decade of April, and then another 1-2 times with an interval of 10-12 days, depending on the weather and the degree of damage to the plants. It is necessary to strictly follow the recommendations on the dosage of drugs and comply with safety measures.

To combat this disease of pions, it is necessary to observe the following rules:

  1. It is better to alternate different means, it contributes to their more effective action and reduces the accumulation of hazardous drugs in the ground. For example, you can alternate: basezol - 0,3% (or equivalent), chlorine oxide - 0,3% (copper vitriol - 0,5%) and manganese solution - 0,03%.
  2. The concentration of preparations with a scorching effect (copper sulphate) in the spring when spraying young plants should be half as much as for adults. At this time, young tissue is too soft and delicate, easily damaged. Strive to use a minimum of chemicals, protecting yourself, fauna and soil. If possible, apply spraying, and when watering, only moisten the top layer of soil over and around the plant using a watering can with small holes. Then you can restrict the rate of 0,5-1,0 l per peony. No watering the plants on top!

These photos show the treatment of pions for gray mold disease:

Fighting root rot pions

Root rot. Peonies are also affected by pathogenic fungi from the genera Fusarium, Sclerotinia, Rhizoctonia, Phytophtora. According to my observations, the disease is 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.

The causes that trigger the disease are the same as those of botrytis: wet weather, flooding of the area with thawed and rainwater, thickened plantings, unventilated areas, acidic soils, and replanting in place, early occupied by peonies.

Control measures:

  • use of healthy planting stock;
  • correct landing;
  • the use of phosphorus-potash fertilizers and trace elements;
  • For the treatment of this disease of pions, it is necessary to use fungicidal preparations: copper sulphate, Homa, foundation (0,2%) and others listed in the table.

Peony treatment for rust and blotch

Rust For any inquiries, We're here to answer you. Cronartium flaccidum (Alb. & Schw.) Wint. The disease manifests itself in summer, usually already after flowering peonies. Brown or purple spots are visible on the upper side of the leaves, and orange-brown on the lower side. Later the leaves wither and curl. Stems do not look affected. The host of the pathogen is Scotch pine.

Control measures:

  • collection and burning of diseased leaves;
  • spraying (wetting) of leaves with fungicidal preparations, the same as for gray rot. As a means of holding the drug on the sheet plates, it is recommended to add a solution of household or green soap, a pinch of laundry detergent.

Spotting There are a number of different and difficult to distinguish from each other diseases affecting peonies. They cause premature dying off of leaves and stems. Diseases actively develop at high humidity and temperature. Disease fungi are stored on plant debris.

Control measures:

  • collection and burning of affected leaves and stems;
  • spraying the whole plant with fungicides, as in the case of rust;
  • thorough cleaning in the fall and burning of peony residues.

Disease of peonies mosaic: photos and videos of struggle with it

Ring Mosaic Virus (Ringsort virus) externally manifested in the summer after the growth of the stems, before flowering. Symptoms depend on the variety and its species. Most often on the leaves appear rings, half-rings and stripes, yellow or lighter than the main color of the leaf plate. The rest of the plant does not look depressed, blooms normally.

The disease is spread by cutting flowers in summer and stems in autumn, as well as insects sucking the plant sap, in particular aphids. The disease is poorly understood and behaves quite mysteriously: it can disappear on the plant, and then reappear after a few years.

Opinions about the measures of struggle are very contradictory: from the immediate destruction of the plant at the slightest manifestations of the disease to the option "not to touch the plants, even with its full infection." It is suggested that the disease in the latent form exists in many varietal peonies, apparently not showing itself for many years.

Control measures. Starting from the moment of regrowth, carefully follow the foliage of pions. Usually the symptoms of the disease appear before flowering of the bush, initially only on a few stems of the plant, the leaves of the other stems remain normally colored. The affected stems need to be removed without residue (unscrew), sprinkle the wounds with ashes. Cut flowers and stems from a diseased plant with a separate knife and burn. It often happens that further traces of the disease do not appear. If the next year the damage to the plant will be insignificant to the ring mosaic virus, repeat the procedure described above.

See how the pion disease fight is conducted on these photos:

If the disease does not disappear, and captured most of the plant, it is dug out and destroyed. In all cases, if the appearance of the disease was observed on the pion at least once, in the future it is necessary to use a separate instrument when working with it. Avoid varieties susceptible to the disease.

The video "Diseases of pions" shows the most effective measures to combat diseases:

Described below, get rid of nematodes and ants on peonies.

How to get rid of nematodes and ants on peonies

Gall nematode (Meloidogyne spp) - a parasite of roots, causing the formation of galls on them, in form resembling balls with a diameter of 3-5 mm. 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.

Other plants of the garden can be carriers of pests, for example: ageratum, snapdragon, calendula, delphinium, garden cloves, sweet peas, scabiosa, maple. Reliable means of struggle are unknown. If a parasite is found during digging, the entire plant should be burned, and the pit should be etched with an 1-percent formalin solution.

You can recommend to carefully inspect the acquired material - the appearance of the roots of delenok. And contain a plot without weeds, which is always useful.

Ants Often these insects are considered pion pests. They refer to the fact that ants suck the juice from the buds and, settling under the peony, ruin the plant. But many breeders 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. However, in recent years, a new population of ants has appeared, which settle on buds and severely deplete them, preventing flowering.

To get rid of the ants on the peonies as quickly as possible, you need to spray the buds with a solution of fufanol. 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.

Preparations for the treatment of peonies in the spring and summer of diseases and pests

From the table below you will learn, Next you will learn how to treat peonies in spring and summer from diseases and pests.

Preparations for the control of pions diseases and pests

PreparationDiseases and pests of peoniesCondition and processing timeA method of processingNormal value
Copper Oxide (HOM)Botrytis root rotAt manifestation of symptoms of botrytis; when root rot appearsWatering
under the base of the bush
0,5% solution with repetition treatment after 10 days
BotrytisAt manifestation of symptoms of botrytisWatering under the base of the bush; spraying the plant itself0,5% solution (no more!) With repetition in 10 days
AlirinRoot and radical rot, late blightBefore boardingAdding to the planting pit and 2-3 -fold watering during the growing season1 tab. / 1 l of water
Mealy dew, late blight, anthracosis, septoria, gray rotDuring the growing seasonSpraying (2-3 times) until symptoms disappear2-3 tab. / 1 l of water.
Effective at temperatures above 7 ° C
MaksimGray rot, root rotBefore
Soaking delenok (on 30 min)2 ml / l of water 2
During the growing seasonWatering the soil2 ml / l of water 1

Phytosporin M

Fungal and bacterial diseases: rot, rust, powdery mildew

Before boarding


10 drops / 200 ml of water

During the growing season


20 drops / 200 ml of water


Mealy dew, spotting, botrytis

Before boarding

Soil cultivation

3-5 g / 1 l of water

During the growing season


1 -3 g / 1 l of water

Alirin b

Root and radical rot, late blight

Before boarding

Soil cultivation

1 tab. / L l water

Gama and p

Bacterial spots, late blight, powdery mildew, rot

During the growing season


2 tab. / 10 l of water

Preventive spraying before and after flowering

2 tab. / L l water


Fungal diseases

At the beginning of the growing season


2-4 ml / 10 L of water

With a strong defeat


10 ml / l of water 10


Rust, powdery mildew, black spot, rot

During the growing season


Prevention 5 ml / 10 l of water

Leaf processing on both sides

10 ml / l of water 10


Insect pests

When pests appear


10 ml / l of water


Ants, beetles, caterpillars

When pests appear


According to the instruction


Insect pests

When pests appear


30 g / 5 L of water

Potassium permanganate (manganic acid potassium)

planting material

Before boarding


2-3 g / 10 l of water

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