Fungicide for potatoes: descriptions of the best products, rules of application

Today, a large number of fungicides for potatoes are known. They differ in composition, mechanism of action, and effectiveness. To select an effective remedy, it is necessary to take into account the characteristics of the disease and its severity.

Content

Classification
How do they work?
List of fungicides for potatoes against late blight
Biological fungicides
Chemical fungicides
Which drug is better to choose?
Features of application

All remedies are divided into therapeutic and preventive, which allows you to select an effective drug. Compliance with the rules for its use is of no small importance.

Classification

Based on the nature of their action, fungicides are divided into 3 categories:

Protective – aimed at preventing the development of diseases.Such products help protect plants, but cannot cure them of pathologies. The drugs have a superficial effect and do not penetrate the plant structure. They predominantly affect the reproduction of fungal microorganisms and have a narrow spectrum of action.
Treating - cope with fungi that have penetrated the structure of plants.
Immunizing - they enter the structure of plants and change their metabolism. This helps to avoid fungal infection and disrupt the progression of diseases. These drugs influence the appearance, course and outcome of pathologies.

Taking into account the characteristics of distribution, fungicides can have the following types:

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

How do they work?

The effect of fungicidal drugs varies. Such tools help achieve the following results:

disrupt the respiration of fungal microorganisms;
stop the division of fungal cell nuclei;
stimulate the production of natural antibiotics in the plant;
form foci of necrosis that prevent fungi from entering healthy tissues;
suppress energy metabolism;
stop the formation of nucleic acids.

List of fungicides for potatoes against late blight

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

Biological fungicides

This group includes the following tools:

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

Chemical fungicides

Effective chemicals include the following:

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, just measure out 20 milliliters of the substance, pour it into water and mix. Fill the sprayer with the prepared solution and spray it on the plant to completely wet the foliage.
Bordeaux mixture. This popular product is used to treat seed. The composition includes copper sulfate and quicklime. Potato tubers are often treated with the product to prevent rhizoctonia, late blight and other fungal infections. Analogue substances include Kuproksat and Khom.
Maksim. The substance contains fludioxonil. This product has a pronounced protective effect. The drug helps destroy fungi at the cellular level. It affects the mother tuber and adjacent soil. The substance is often used to treat seed.
Celeste Top. This is a combination substance. It has an antifungal and insecticidal effect. The composition contains several active components that help protect roots and leaves. It is enough to use the drug once. It is used for processing planting material.
Acrobat MC. The composition contains 2 active components. They form a protective barrier and enter the leaf structure. The substance provokes the death of fungal mycelium within several days. The composition is used for the treatment and prevention of pathologies.A fungicidal solution is used during plant development.
Flanobin. The substance has many advantages. It provides a high level of protection for plantings, has a long-lasting effect, is resistant to precipitation, increases the 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, preventive and immunizing. A specific tool is selected taking into account the problems that need to be solved.

Features of application

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

Choose the right place to plant potatoes. If you plan to use chemicals, the vegetable should be planted 20-30 meters from reservoirs and sources of drinking water.
It is recommended to wear closed clothing and shoes when working with chemicals. It is also worth using gloves and safety glasses.
It is strictly forbidden to exceed the concentration of the working solution recommended by the manufacturer.