Content
The reality is that it will not be possible to obtain a normal harvest without preventive and therapeutic treatments of cultivated plants. Almost all plants, trees and shrubs are needed spray special means to protect them from pathogenic bacteria and microorganisms. Today, one of the most popular broad-spectrum drugs in Russia is Horus - aminopyrimidine, which can not only prevent infections, but also successfully treat them at different stages. This tool has many advantages, but the gardener must also know about the disadvantages of Horus in order to successfully use it on his site.
Below we will talk about the composition of the drug, instructions for using Horus for fruit trees and shrubs are given. The article also provides information on Horus dosage and drug compatibility with other treatments.
Chemical composition and principle of action
Horus is a broad spectrum fungicide. This drug was developed by the Swiss company Syngenta and presented as a powerful antifungal agent. The active ingredient here is the organic compound cyprodinil. The composition of the preparation is as follows: a liter of Horus contains 0.75 liters of the active ingredient.
The principle of action of the fungicide is based on the penetration of the active substance into the cells of the fungi and inhibition of the synthesis of amino acids. As a result of exposure, the vital activity of harmful microorganisms is disrupted, and the mycelium is completely destroyed.
The developers of the drug note its amazing ability to destroy disease-causing fungi of several classes when they are in a dormant state. I.e, the most effective treatment of plants with Horus in the early spring period. The remedy is systemic, that is, it is able not only to prevent the disease, but also to cure it.
Horus is produced in the form of small granules that can easily dissolve in water. On sale there are bags with a fungicide weighing one, three and fifteen grams, there is also a kilogram packaging for large farmers and industrial gardens.
Spectrum of action
Most often, Horus is used for the garden and processing fruit trees, berry bushes, strawberries, wild strawberries. Unlike other, similar fungicides, the Swiss drug effectively and very quickly destroys pathogenic fungi.
Horus is effective in cases where a disease of fruit trees or other plants is caused by this series of infections:
- scab;
- powdery mildew;
- clasterosporium disease;
- moniliosis of stone fruit cultures;
- fruit rot;
- gray rot;
- white and brown spots;
- mildew;
- curliness of leaves;
- alternaria;
- oidium.
Advantages and disadvantages
The use of Horus in horticulture avoids a number of problems. Choosing the Horus fungicide for treating plants in the garden should be for a number of reasons:
- the active substance penetrates into the leaf plate very quickly - within three hours;
- you can use the fungicide even at low temperatures - from +3 degrees, which allows you to destroy myceliums during the wintering stage;
- suitability for late processing of fruits, which reduces the risk of contamination of the harvested crop with rot by 50%;
- lack of phytotoxicity;
- compatibility with other antifungal agents, pesticides and insecticides;
- economical use of an expensive product;
- poor absorption into the soil, non-proliferation of Horus into groundwater;
- convenient packaging;
- a wide range of actions.
Unfortunately, there is still no perfect drug that has no drawbacks. Horus is no exception, this fungicide has its drawbacks:
- the product is not able to penetrate through the thick epidermis, therefore, it is not suitable for the treatment of mature trees and shrubs - it is recommended to spray young plants with Horus at the very beginning of their growing season;
- the action of the fungicide is local, that is, the substance does not penetrate into all parts of the plant;
- the drug is most effective at average air temperatures - from +3 to +25 degrees. Intense heat, like cold weather, greatly reduces the effectiveness of Horus.
Preparation of the solution
Since Horus granules are water-dispersible, they are easy to dissolve in water and prepare a solution in the right proportion. It is necessary to prepare a fungicide solution immediately before processing - you cannot store the finished product.
The preparation is very simple:
- The spray container is rinsed with clean water.
- Fill the container with water one third.
- According to the instructions, calculate the dosage of Horus and pour out the required amount of granules.
- Stir the resulting composition thoroughly.
- Then just add the rest of the water. Stir again.
Horus' consumption rate is 1 cubic meter per hectare of gardens. These are approximate figures recommended for industrial scale. A more accurate dosage should be calculated taking into account the type of plant, the processing time and the size of the crown.
The printed bags are not stored for long, since the fungicide granules actively absorb moisture from the air. An unopened container with Horus is stored for up to three years in a dark place, where children and pets cannot reach, at a temperature of -10 to +35 degrees.
Dosage calculation
The consumption rate of Horus also depends on the type of plant and the disease to which it has undergone. Most often, this fungicide is used to treat pome and stone fruit crops.
Molonial burns and curly leaves of stone fruit trees should be treated with a solution with the following concentration: 2 grams of Horus per 10 liters of water. The first spraying of trees is carried out in the phase of pink buds, again - after two weeks.
Clasterosporium, coccomycosis, fruit rot eliminate with a more concentrated composition: 2 grams of fungicide per 5 liters of water. The first processing of fruit can be carried out at the "green cone" stage, followed by spraying at intervals of 15 days.
Pome fruit trees (apple, pear) are treated with Horus from fruit rot, scab, Alternaria. For this, 2 grams of the fungicide is dissolved in 10 liters of water and the trees are sprayed twice: during the period of bud swelling and after 15 days.
How to apply the product to various plants
Horus instructions for use are usually found on the packaging of the fungicide. As practice shows, for each fruit tree of a young age, you will have to spend from two to four liters of the finished solution.Due to the water dispersion of the product, it dries quickly and covers all parts of the plant with a thin film. After a couple of hours, you can not be afraid of rain, since the active substance of Horus has penetrated inside.
For apple trees and pears
Pome fruit crops are recommended to be treated with Horus in order to prevent scab, powdery mildew, monilial burn and Alternaria. Spraying is carried out twice: at the stage of budding ("on a green cone") and, somewhere, on the tenth day after the end of flowering trees.
The fungicide consumption in this case is 10 liters per 100 squares of the garden.
For cherries, peaches, apricots, sweet cherries, plums
For the treatment and prevention of infection of stone fruit crops (for example, for a peach) with a monilial burn, Horus treatment must be performed before flowering, and re-spraying is carried out after a week.
Fruit rot can be treated as soon as the first symptoms of the disease appear. Spraying the fruit with the fungicide is repeated at intervals of two weeks so that the last treatment takes place no later than 15 days before harvest.
Coccomycosis and clasterosporium are treated with double treatment: at the initial manifestations of the disease and 10 days after the first exposure to the drug.
Grape processing
Horus is also effective for grapes. With the help of a fungicide, this culture is treated for gray rot and downy mildew. Leaves and vines should be processed three times during the growing season: at the budding stage, during the formation of bunches, during the ripening of the grapes.
Spraying strawberries and strawberries
Horus also helps against diseases of berries such as strawberries and strawberries. Fungicide is effective in case of infection of plants with white and brown spot, powdery mildew, gray mold.
Berry crops are sprayed three times per season, while the concentration of the fungicide is different all the time. Before flowering and immediately after picking berries, strawberries are treated with a solution of 6 grams of Horus and 10 liters of water. During the period of ovary formation, the concentration must be halved: 3 grams of fungicide per 10 liters. To a strawberry plot of 100 m2 about five liters of working composition are consumed.
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Conclusion
Horus is an effective and popular fungicide. The drug has earned the love of gardeners due to the possibility of early use, a wide spectrum of action and economical consumption.
Reviews of this fungicide are only positive, the only drawback identified by domestic gardeners is the rapid disappearance of the drug from the shelves. It is better to buy Horus in advance, without waiting for spring!
