We treat a peach orchard for curliness

We treat a peach orchard for curliness

Curly leaves are the scourge of gardeners when growing a peach or nectarine. An insidious disease develops rapidly and it is very difficult to contain it. A gardener who decides to grow a peach on his site should know the causes and signs of curly leaves, as well as methods of prevention and treatment.

Peach leaf curl - characteristics and causes

This is the most dangerous and harmful disease of the peach, which, without appropriate prevention, in most cases leads not only to loss of yield, but also to the death of trees.

Characteristics and causes of the disease

The causative agent of the disease is the voiceless fungus Taphrina deformans. It can also settle on apricots, nectarines and almonds. Its spores overwinter in cracks in the bark, between bud scales, in affected leaves and shoots. In spring, when the air temperature reaches + 10 ° C, the spores germinate and form mycelium. The active period of the development of the disease coincides with the awakening of leaf buds and their blooming. It is the young leaves that are affected by the fungus in the first place. They are followed by young shoots and sometimes flower buds and flowers. Fruits are rarely affected. In summer, when the temperature rises above +26 ° C, and the leaves become coarse, the likelihood of infection decreases.

The symptoms of the disease look like this:

  • After the young leaves open and unfold, pale green swellings appear on their upper side. As the disease progresses, their color changes to pale yellow, then bright red and then to brown.

    Bright red bumps on peach leaves are a definite sign of curliness.

  • Depressions are formed on the underside of the leaves at the lesions.
  • The affected areas of the leaves are strongly thickened.
  • Over time, a whitish plaque forms on the infected areas.
  • As a result, the leaves die off, turn black and fall off.
  • Infected young shoots thicken and / or bend. At the end of summer, they dry out or freeze in winter.
  • In diseased flowers, petals are larger, their color is variegated. And also they often fall off without forming ovaries.
  • The fruits become shiny, bulges and cracks form on them. They are crushed and often fall off.
  • The number of fruit buds laid down next year decreases sharply.

Prevention and treatment methods

There are two principles of treatment and prevention of fungal diseases. First, you need to remove pathogens and myceliums from the diseased plant as much as possible - for this, diseased shoots, leaves, ovaries and fruits are cut off, after which they are disposed of. The operation is repeated if necessary during the growing season. The second necessary action is treatment with fungicides (preparations for combating fungal diseases) in order to completely destroy the remaining fungi. And besides, we must not forget about typical preventive measures: autumn digging of soil near-trunk circles, collection and disposal of fallen leaves, sanitary pruning of the crown, lime whitewashing of branches and trunks, as well as ensuring balanced nutrition and watering.

Video: curly peach leaves: an overview and how to treat

Peach curl treatment

Without timely treatments for curliness, growing a healthy peach, most likely, will not succeed.

Without timely treatments for curliness, growing a healthy peach, most likely, will not succeed.

Timing of treatments

The basis of preventive treatments is the eradication of plant treatments. They are carried out with potent drugs, as a rule, of universal action (against all diseases and pests). Since such drugs are quite toxic, and can also burn foliage and young shoots, they are used in late autumn (after the end of leaf fall) and / or early spring (before the buds swell), when the tree is at rest.

Table: calendar of preventive treatments for peach

How to spray a peach from curly leaves

Manufacturers offer many different drugs for these purposes. Traditional methods for this disease are ineffective, so we will not dwell on them. We will briefly introduce the most popular and effective fungicides, summarizing the data in a table for the convenience of the gardener.

Table: popular preparations for treating peach from curl

A wide variety of brands of fungicides can be found commercially. It often happens that under different names are hidden the same drugs that have the same active ingredient in the composition. The gardener needs to know that most antifungal drugs are addictive to fungi and after several times of use, their effectiveness decreases dramatically. Therefore, during treatment, drugs should be alternated without using the same (with the same active substance) more than the permissible number of times (the requirement does not apply to biological products). For this purpose, the table contains the names of the active substance of each drug.

Photo gallery: basic drugs to combat peach curl

Nectarine treatment for curl

Nectarine is a type of peach (it is also called the bare peach). Since these plants are related, they also have common problems, including the susceptibility to curly leaves. Everything about the disease, its prevention and treatment, given above, is also relevant for nectarine, so it makes no sense to repeat it.

Of course, peach leaf curl is an unpleasant disease and requires efforts to combat it. But with due diligence, it is quite possible to cope with this problem, and the reward will be a good harvest of juicy and fragrant fruits.

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Hello! My name is Pyotr Vladimirovich. I am 63 years old. By education - a mechanical engineer.

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Peach treatment for leaf curl

Peach curl is one of the most dangerous and common diseases of this fruit crop. It progresses rapidly, affecting the development of the tree, reducing its yield. Treatment for curly peach leaves must be comprehensive and timely, otherwise the tree may die.

Curl is a fungal disease that can kill all leaves

Fruit rot or peach moniliosis

Fruit rot or moniliosis is a fairly common peach disease caused by a fungus. The mycelium of the fungus is carried by insects, wind or rainwater. Spores quickly affect fruits that have damage, cracks or wounds from bites of birds or insects. With moniliosis, the flowers and leaves of the tree dry up, the shoots turn black. On ripening fruits, fungal spores appear in the form of gray circles, the pulp begins to rot, and later the fruit is mummified.

Preventive measures include the following:

  • spring pruning of dead branches
  • destruction of affected fruits and shoots
  • crown thinning
  • spring spraying of trees with fungicides.

Gardeners, at the first sign of fruit rot, resort to the use of medications, the affected fruits are removed, and the branch on which they grew is cut off. It is recommended to use Topsin or Bordeaux liquid. It is advisable to carry out the first treatment even before the beginning of flowering, then repeat twice more.

How to deal with the disease?

To get rid of this ailment, you need to make a lot of effort. But if you start treating the fungus in a complex way, you can achieve positive results.

The most promising treatment for infection is pruning the affected leaves and then burning them. This method is best done in May. At this time, the signs of the disease are more clearly visible. For more effective gardeners with experience, it is recommended to remove the leaves in this way several times after a certain period of time. For example, the first pruning is carried out during the growing season after flowering ends. Then the procedure is repeated until the fungal spores have not had time to dissipate.

Watch the video: How and when to fertilizing fruit trees