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Fungal diseases are dangerous for fruit trees, grapes and potatoes. Contact preparations help to contain the spread of the fungus. One of them is Kuproksat, which has copper compounds in its composition. After treatment, plants are protected from the penetration of fungal spores.
Features of the fungicide
Kuproksat is a contact fungicide with protective properties. The active ingredient is tribasic copper sulfate. Its content in the preparation is 345 g/l. The main analogue of the fungicide is Bordeaux mixture.
A solution of copper sulfate forms a protective film on the surface of plants. As a result, an obstacle is created for the germination of fungal spores.
The active substance of the fungicide Kuproksat blocks the respiratory function of microorganisms. Copper sulfate accumulates in fungal cells and completely destroys them. Therefore, Kuproksat is effective as a prophylactic before infection begins.
The drug is used to protect against fungal diseases of various crops: fruit trees, vegetables, grapes. At observance of dosages copper sulfate is not phytotoxic for plants.
Kuproksat acts at temperatures from 0 to +35 ° C. The protective effect persists for 7-10 days.
Among all preparations containing copper, Kuproksat is considered the standard. The fungicide is effective even in rainy weather. The protective film is not washed off after exposure to moisture.
The manufacturer of Kuproksat is the Austrian company Nupharm. The fungicide has the form of a liquid suspension and is supplied in a plastic container with a capacity of 50 ml to 25 liters.
Advantages
The main advantages of the drug Kuproksat:
- high quality of the active substance;
- protects against dangerous diseases that affect horticultural crops;
- forms a reliable protection resistant to adverse weather conditions;
- does not cause addiction in pathogenic microorganisms;
- compatible with other drugs.
Disadvantages
Before using the Kuproksat fungicide, its disadvantages are taken into account:
- compliance with safety rules is required;
- restriction in use depending on the stage of vegetation;
- only has a preventive effect.
The order of application
The fungicide Kuproksat is used to prepare a working solution. Its concentration depends on the type of crop being treated. The solution requires enameled, glass or plastic dishes.
First, a measured amount of Kuproksat is dissolved in a small volume of water. Gradually add the remaining water to the solution.
The solution is used within a day after preparation. Plants are treated by spraying on the leaf. This requires an atomizer with a fine spray.
Apple tree
With high humidity, the apple tree may suffer from scab. This is a fungal disease that affects young shoots, leaves and ovaries. Swamp-colored spots appear on them, which gradually darken and lead to the formation of cracks.
To protect the apple tree from scab, a solution based on the fungicide Kuproksat is prepared. According to the instructions for use, 1 ml of suspension is required for the treatment of 50 weave of plantations, which is mixed with 10 liters of water.
Spraying is carried out during the growing season of the apple tree, but not more than 3 times during the season. The first treatment with Kuproksat fungicide is performed when the buds open. 3 weeks before harvesting apples, all processing is stopped.
There are varieties of apple trees that are sensitive to copper-based fungicides. After their processing during the flowering period, a so-called “net” is formed on the leaves and fruits.
Stone fruits
Peach, apricot and other stone fruit crops are susceptible to diseases such as moniliosis, leaf curl, clusterosporiosis. Diseases spread rapidly and lead to crop loss.
Preventive treatments for stone fruits begin in the spring when the buds open. During the season, it is allowed to perform 4 sprays with a solution of Kuproksat. Between procedures stand from 7 to 10 days. The last spraying is carried out 25 days before harvest.
For 10 liters of water, according to the instructions for use, 45 ml of suspension are added to the fungicide Kuproksat. The resulting solution is sufficient to process 1 acre of an orchard.
Grapes
A dangerous disease of grapes is mildew. The disease has a fungal nature and is diagnosed by the presence of a white coating on the shoots and leaves. As a result, grape leaves die off, plant immunity decreases and its yield decreases.
Preventive treatments help to avoid the development of the disease. During the growing season, plantings are sprayed with a solution of Kuproksat. According to the instructions for use, 1 ml of concentrate is required per 6 liter of water. The prepared solution is consumed per 10 square meters. m vineyard.
Potatoes
In the second half of summer, signs of late blight may appear on potatoes. The causative agent of the disease is a fungus that affects the shoots and tubers of potatoes. Late blight is determined by the presence of brown spots covered with a grayish coating. The affected parts of the bush die off, in advanced cases, plantings die.
Another dangerous potato disease is Alternaria, which looks like dry gray-brown spots. The lesion spreads to the leaves, which turn yellow and die off, gradually moving to the tubers.
Protective measures are carried out after planting potatoes. During the season, plantings can be treated with Kuproksat three times, but not more than once every 10 days.
The solution for spraying is prepared according to the instructions for use of the Kuproksat preparation. For 10 water, 50 ml of suspension is required. The prepared solution is enough to process 1 weave of plantings.
Safety measures
The fungicide Kuproksat has been assigned a hazard class 3 for humans and bees. If there is an apiary nearby, then bees are allowed to be released 12-24 hours after spraying the plantings.
The active ingredient of the fungicide Kuproksat is dangerous for fish and other aquatic organisms. Processing is carried out at a distance from water bodies, rivers and other similar objects.
For spraying plants, choose morning or evening time, when there is no direct sunlight, rain and strong wind.
It is important to avoid contact of the solution with the skin and mucous membranes. In case of contact with open areas, wash them with frequent water.
In case of poisoning with Kuproksat, the victim is given 2 glasses of pure water and 3 tablets of a sorbent (activated carbon) to drink. Be sure to seek medical attention.
Fungicide Kuproksat is stored in a dry place at a temperature above 0 °C. The product is kept away from children, animals, food and medicines.
Reviews of gardeners
Conclusion
The drug Kuproksat has a contact effect and helps to restrain the development of fungal diseases. The main purpose of the fungicide is to prevent or control the first symptoms of the disease. When using the product, observe the dosage and precautions.
