Description of the best fungicides for potatoes and rules of application

A large number of potato fungicides are known today. They differ in composition, mechanism of action, effectiveness. To choose an effective remedy, it is necessary to take into account the characteristics of the disease and the degree of its severity.

All funds are divided into therapeutic and prophylactic, which allows you to choose an effective drug. Compliance with the rules of its application is of no small importance.

Classification

By the nature of the action, fungicides are divided into 3 categories:

1. Protective - aimed at preventing the development of diseases. Such agents help to protect plants, but cannot cure them from pathologies. The preparations have a surface effect and do not penetrate the structure of the plant. They mainly affect the reproduction of fungal microorganisms and are distinguished by a narrow spectrum of action.
2. Healers - cope with fungi that have penetrated the structure of plants.
3. Immunizing - get into the structure of plants and change their metabolism. This helps to avoid fungal infection and disrupt the course of disease. These funds affect the appearance, course and outcome of pathologies.

Taking into account the peculiarities of the distribution, fungicides can be of the following types:

1. Contact - affect the focus of the disease only through direct contact with it. Such preparations do not penetrate into the structure of the potato, but are localized on the surface of the plant.
2. Systemic - they get inside the culture and move through its body. Thanks to this, it is possible to cope with pathogenic fungi in all places of their location.

How do they work?

The action of fungicidal preparations is different. Such funds help to achieve the following results:

• disrupt the respiration of fungal microorganisms;
• stop the division of nuclei of fungal cells;
• stimulate the production of natural antibiotics in the plant;
• to form foci of necrosis, which prevent the entry of fungi into healthy tissues;
• suppress energy metabolism;
• stop the formation of nucleic acids.

List of fungicides for potatoes from late blight

Fungicidal preparations that are used to treat potatoes are divided into 2 main categories - biological and chemical.

Biological fungicides

This group includes such funds:

1. Alirin-B. It is based on the bacterial strain Bacillus subtilis. When multiplying, it leads to the suppression of the spores of pathogenic fungi by displacing them from the soil. The tool is used to treat seed. Also, the substance is sprayed on crops during the growing season and potatoes are treated during storage.
2. Fitosporin M. The composition contains bacteria Bacillus subtilis 26D.Also, the substance includes phytobacterial waste products. It also contains bioactive humic elements. The tool is used to prevent fungal and bacterial pathologies. It helps to stimulate potato growth and strengthen its immunity. The tubers are treated before planting, after which the crops are sprayed during development. The product helps to preserve the harvest.
3. Glyocladin. Substance includes spores of the fungus Trichoderma harsianum. The tool is used for soil treatment and helps to suppress root rot pathogens. The substance activates crop growth and increases yield parameters. A solution of the drug is used before planting potatoes. They are also watered with crops during the growing season.
4. Gamair. It is a bactericidal substance. It is successfully used in combination with Alirin-B. The composition contains spores of the fungi Bacillus subtilis. During growth, natural antibiotics are released, which provoke the destruction of pathogens. The drug is used for watering the soil and processing crops during development.
5. Trichocin SP. The composition contains soil antagonist fungi. They suppress the activity of pathogens of infectious pathologies in planting material and soil. Also, the substance helps to cope with pathologies of foliage and fruits. The composition is used to treat tubers before planting in the ground. They are also sprayed with the culture.

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Chemical fungicides

Potential chemicals include the following:

1. Consento KS. This is an effective remedy that is used to protect potatoes and many other vegetable crops. The substance successfully copes with late blight. With its help, it is possible to cure peronosporosis and other fungal infections. The composition is easy to apply. To do this, it is enough to measure 20 milliliters of the substance, pour into water and stir. Fill the sprayer with the prepared solution and spray it on the plant to completely moisten the foliage.
2. Bordeaux liquid. This popular treatment is used for dressing seed. The composition includes copper sulfate and quicklime. The tool is often treated with potato tubers to prevent rhizoctonia, late blight and other fungal infections. Substances analogs include Kuproxat and Hom.
3. Maxim. The substance contains fludioxonil. This tool has a pronounced protective effect. The drug promotes the destruction of fungi at the cell level. It affects the uterine tuber and adjacent soil. The substance is often used to treat seed.
4. Celeste Top. This is a combined substance. It has antifungal and insecticidal effects. The composition contains several active ingredients that help protect the roots and leaves. It is enough to use the drug once. It is used for processing planting material.
5. Acrobat MC. The composition contains 2 active components. They form a protective barrier and enter the leaf structure. The substance provokes the death of the mycelium of fungi within several days. The composition is used for the therapy and prevention of pathologies. The fungicidal solution is used during plant development.
6. Flanobin. The substance has many advantages. It provides a high level of plant protection, has a long-lasting effect, is resistant to precipitation, increases stress resistance of crops, and reduces the likelihood of infection of tubers.

Which drug is better to choose?

When choosing a drug, it is worth considering the type of disease. All fungicides are divided into several categories - therapeutic, prophylactic and immunizing. The specific tool is selected taking into account the tasks that need to be solved.

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Instructions for use and mechanism of action of Lemur herbicide

Application features

When using fungicides, it is important to follow safety rules:

1. Choose the right place for planting potatoes. If you plan to use chemicals, the vegetable should be planted 20-30 meters from reservoirs and sources of drinking water.
2. It is recommended to work with chemicals in closed clothing and shoes. Gloves and goggles should also be used.
3. It is strictly forbidden to exceed the concentration of the working solution recommended by the manufacturer.

It is important to use the working solution immediately after preparation. Store open packages out of the reach of children and pets.

Today, many fungicides are known that can be used to treat potato beds.

In this case, it is important to choose the right drug and adhere to the instructions for its use.