How to spray grapes from diseases

Successful viticulture is associated primarily with the creation of conditions in which the vine receives enough nutrition, light and watering. If any of the factors is violated, diseases and pests come. It is important to anticipate the occurrence of damaging factors, focusing on weather conditions. Preventing a disease is easier than eradicating it. Therefore, there is a system for the protection of the vineyard and its preventive treatment. She establishes how to spray grapes from diseases, and in what time frame.

Agrotechnology of grapes

The ancient grape culture has accumulated many diseases. All of them can be divided into infectious and depending on the conditions of detention, natural factors. Infectious diseases are that part of the living world that develop on the grape bush - fungi, viruses, bacteria. Prevention aims to combat these factors. Science suggests than treat grapes from diseases and how to avoid defeat.

First of all, the place of planting the bush is of great importance. The preparation of the planting pit with filling with the necessary nutrients is the key to the correct development of the plant in the first years. When planting cuttings in a permanent place, they are soaked with the addition of potassium permanganate against odium infection. The bush needs protection during the entire summer period until it leaves for wintering.

In order for the diseases not to adapt to the applied fungicides, they are used alternately. There are fungicides of systemic action and drugs aimed at specific diseases.

Fungicidal treatments are also carried out on fallen leaves, soil when laying vines for winter storage. Preventive spraying is carried out at certain periods of plant development.

1. In the stage of bud swelling against odium and red grape mite.
2. On the fifth sheet against mildew and gray rot, if it was in previous years.
3. In the developmental stage of inflorescences against ticks and odium.
4. Before flowering against ticks, major diseases, foliar feeding on the leaf, together.
5. After flowering, systemic treatment with insecticides, fungicides with the addition of trace elements is applied.
6. At the stage of the beginning of filling, a systemic fungicide is used, which stimulates feeding. During inclement weather, weekly.
7. When bunches are closed with systemic fungicides and against gray rot.

Further processing is carried out, if necessary, with gentle means before harvesting. However, later, in preparation for wintering, systemic drugs are again used.

Preparations for processing grapes

All drugs used to suppress disease are called fungicides. Among them are distinguished:

• systemic fungicides;
• contact fungicides.

The difference in the active substance used allows you to act on pathogens from the outside, and destroy mycelium from the inside.

Soda solution

As a preventive treatment at all stages of development, you can do the treatment of grapes with soda. As a result, a film with an alkaline reaction is created on which the spores of the fungus cannot germinate. You can spray the bush with a solution of 50 g of laundry soap and 50 g of soda per 10 liters of water before and after flowering every week. This treatment is also appropriate during the August appearance of signs of odium. Also acts on odium and potassium permanganate solution.

inkstone

Another drug that should be in the kit of chemicals is iron sulfate. For grapesYes the drug is irreplaceable. The need for iron vitriol in agricultural farming is due to:

• a trace element in a soluble form, well absorbed;
• forms a film on the item after drying;
• delays spring budding;
• fights mosses and lichens, fungicide.

This is the only iron salt composition that is absorbed without changing its form. As a foliar feeding, it quickly enters the plant system. However, iron sulfate is used for grapes in spring in low concentration. Even before the leaves bloom on the bark, it is used at a concentration of 0.5-1%. In autumn, for processing, it can be used in whitewashing up to 3%, and for the destruction of lichens in 5% concentration. But a concentrated solution is used only in late autumn, when sap flow stops.

The spring application of iron sulfate delays the opening of the buds, and the plant leaves the spring frosts. Also works urea in high concentration if spraying occurs immediately after the snow melts.

Colloidal sulfur for grapes - a contact preparation

It serves to destroy odium spores and is used at the first appearance of signs of the disease. It is also used at the first sign of anthracosis, has a detrimental effect on ticks. Colloidal sulfur can be used simultaneously with copper fungicides. The solution is prepared in warm water with gradual dissolution of the drug. Fresh working solution is used. In addition, for prevention purposes, sulfur can be used by applying it to the surface of the leaf blade using a fine spray method. Colloidal sulfur for grapes creates a protective barrier for 10-14 days.

When treating a vineyard with chemicals, one must not forget about individual protection measures. Inhalation of vapors, getting them on open areas of the body can cause allergic reactions and poisoning. If this happens, rinse the body or eyes well. If swallowed, drink plenty of activated charcoal water. After that, be sure to consult a doctor.

Thanos systemic fungicide for grapes

It is wash-resistant and can be used in wet weather. The active ingredient famoxadone forms an indelible film and is distributed evenly over the surface, protecting it from spore germination.

Cymoxanil penetrates inside the leaf plate and produces its therapeutic effect, moving inside. It moves from leaf to stem and reaches uniform concentration every other day. In doing so, it binds pathogens inside the plant. This is achieved by creating a capsule around the affected cells.

Fungicide for the vineyard thanos is a drug for a complex of diseases. It should be applied to a grape leaf at least three hours before rain. It is used in joint treatments with other drugs that have an acidic reaction.

Fungicide Quadris

The protective effect of the drug Quadris in the application for grapes consists in its systemic action against most spores and bacteria. The class of the new toxic chemical is strobilurins. The action of the active part is systemic. It can be used prophylactically and in the midst of illness. During the day, Quadris 250 SC suppresses the disease. At the same time, it is a low-toxic preparation that has no effect on bees. To avoid addiction, the use of Quadris for grapes is alternated with Topaz or Rodomil Gold.

Falcon drug

The firm Bayer, known for its novelties, has released a new systemic drug for grapes, Falcon. The active ingredients comprehensively destroy all fungal diseases. At the same time, spiroxamine acts on false and American dew, tebuconazole and triadimenol inhibit the growth of mycelium.

The drug forms a film, is not washed off and is used at any stage of the development of the disease. The very effective Falcon for grapes is sold in a 5 liter package. Since the fungicide is not cheap, only large farms can afford it in such a container.

Another drug of systemic action, aimed mainly at combating scab on fruit stone trees, was released by Syngenta. Horus fungicide for grapes is used to prevent rot. The active ingredient cyprodinil ensures the creation of a film on the berry. It can be used in the prevention and treatment of vines. The drug is not washed off with water two hours after treatment. It is used at the beginning of the development of the hand and at the end, in order to prevent infection with white rot. The period of protective action is 7-10 days. The drug begins to work within the first 36 hours.

Grape rescuer

From the "Rescuer" series, the Grape Rescuer is used in agricultural technology. Systemic drug for insects and fungal diseases. The package contains three ampoules:

• destroys insect pests;
• protects against fungal diseases;
• growth regulator and stimulator.

The grape rescuer easily destroys aphid freelancer, spider mite and other systemic garden pests. The consumption rate is three ampoules per 10 liters of water. The drug should be used using personal protective equipment.

After treatment, the effect of the drug continues for 3-4 weeks, depending on weather conditions.

Using drugs of systemic action in accordance with the recommended doses and at the right time, you can get a healthy vineyard.

Protection of grapes from diseases and pests - video