Taking care of the harvest is a difficult and painstaking task that requires a lot of physical effort and material costs. It is doubly offensive when the plants get sick and the crop cannot be preserved. One of these insidious diseases is late blight. It is capable of destroying not only plants in a small garden plot, but also on the scale of an agricultural enterprise. The disease mainly affects the nightshade family. It flows rapidly, and if you do not notice its signs in time, then in a matter of days the entire planting of plants will die. It is important for every gardener, farmer engaged in tomato cultivation to know the means against late blight and be able to use them. It is not difficult to determine the onset of pathology upon close examination - the leaves acquire a whitish or brownish tint. In the absence of treatment in the first days, the green part turns black and dries up. It is already difficult to stop the spread to other parts of tomatoes. If late blight has affected the fruits themselves, then the harvest is considered completely lost.

You can fight tomato rot with the help of chemical, medicinal and biological products. For an effective result, they must be periodically changed or used alternately. If a problem is found in the greenhouse, it is recommended to process all surfaces in it - doors, windows, floor and ceiling. The soil must also be sprayed. Careful processing will not leave a trace of the fungus. The affected parts of the nightshade are advised to be cut off and burned, preventing re-infection. Chemical control agents show the best results, as they quickly limit the rate of spread of microorganisms. Below is a list of the most effective remedies that preserve the viability of the plant and destroy phytophthora.

Top 10 best remedies for late blight

10 Topaz

A domestic drug with an active ingredient - penconazole. Designed to protect and prevent plants from pests. They begin to apply at an early stage of the growing season to reduce the likelihood of plant infection. It can be processed with stone fruit, seed crops, indoor flowers, vegetables, grapes. Penconazole penetrates the fungus, envelops the spore, preventing its germination. Reproduction of bacteria becomes impossible, it dies. For prophylactic purposes, the agent can be used in low concentrations.

The finished solution is instantly absorbed into the surface of the plant, so a few minutes after treatment, even rain is not terrible. Topaz does not change its effectiveness in case of sudden temperature changes, therefore it is boldly used in spring and autumn. A solution for prophylaxis is prepared with a low content of the active substance - 2 ml of the fungicide is diluted in 10 liters of water. For treatment - 2 ml per 5 liters of clean water. Spraying is recommended in the absence of wind and rain. If necessary, repeat the procedure after 2 weeks.

9 Hom

Gardeners draw an analogy between the drug and the Bordeaux mixture due to the similar composition. The main component is copper oxychloride. Used for late blight, rot, spotting, scab. The mechanism of action on bacteria is simple - the active substance actively penetrates into the cells of the microorganism, disrupting the processes of mineralization of substances. The solution does not cause persistent addiction, it is permissible for repeated use. Effective action is guaranteed every time.

The product is presented in powder form; when diluted, it is odorless. The color is greenish blue. For a longer retention on the surface, it is recommended to prepare the drug not on a water basis, but to add milk in an amount of 1% of the total volume of the finished solution. Do not use metal utensils to prepare the solution, as corrosion may occur.First, take a little liquid, dilute the required amount of the drug in it, then slowly add water to the required volume. Apply to plants using a spray bottle. The work is carried out in the absence of rain and wind. Do not store the remains of the fungicide.

8 Profit Gold

The drug has a wide range of effects, shows a high result in the fight against late blight, gray and white rot, powdery mildew, phomosis, fungi. Such a high result is achieved thanks to the main ingredients in the composition - famoxadone and cymoxanil. After application of the product, they create a protective shell that prevents the penetration of pathogenic bacteria from the outside. Cymoxanil penetrates deep into the tissues of the microorganism and destroys it from the inside. The most interesting thing is that a protective layer envelops new branches, preventing them from getting infected.

Before work, prepare the solution according to the instructions, without exceeding the norms. The granules are diluted with water in the desired ratio, for tomatoes and potatoes - 1.5 g per 2.5 liters of water. The finished mixture is poured into a spray bottle and applied to the plants by spraying. One package weighing 1.5 g is sufficient for treating a 25 m2 area. The fungicide begins to act immediately, and retains its antibacterial ability until the problem is completely destroyed. The drug is equally effective on different varieties of tomato and potato. It is not afraid of precipitation, it is resistant to washout. You can repeat the treatment 3-4 times during the growing season.

7 Baktofit

An effective antifungal and antibacterial drug. Available in three versions - powder, suspension concentrate and small packaging for private use. The drug belongs to contact. The active ingredient - Bacillus subtilis belongs to antibiotics that successfully inhibit pathogenic pathogens. These include phytophthora, rot, bacteriosis, powdery mildew. It is used as an independent product, does not need to be mixed with other preparations and fertilizers. After spraying, harvesting is allowed after 72 hours.

In the tool, you can soak seeds for the purpose of disinfection before planting. It is enough to keep them in Baktofit for half an hour. The manufacturer recommends soaking the root system before planting seedlings in the ground. This will help strengthen your defense against bacterial spores. Leaf treatment should be two-sided. The rates for the preparation of the solution are indicated in the instructions and depend on the purpose. Consumption of fungicide for soaking seeds - 1 ml per 0.5 l of water. From late blight for spraying - 20 ml per 10 liters of water. Repetition of the procedure no more than 1 time per week. The manufacturer allows up to 8 treatments per season, as the degree of resistance is low. But with a strong infection, it is better to alternate drugs.

6 Consento

The active ingredients of the drug are fenamidone and propamocarb hydrochloride. Thanks to the first, the agent binds to the surface of the plant, and it is evenly distributed over it. The second helps to systemically affect bacteria, sharply impairs their mitochondrial respiration, disrupts the synthesis of substances, which does not give them a single chance of survival. Fungicide of combined action, shows high efficiency on tomato, onion, cucumber, potato. Able to protect against pathologies mixed with late blight. Increases immunity, enhances growth, is used at different stages of plant development. Shows good results in the destruction of fungal spores.

Produced by the manufacturer in the form of a suspension poured into containers of different volumes. The smallest bottle of 50 ml is for small garden areas. Large bottles up to 0.5 l are easy to use on an industrial scale. Before processing, prepare a solution according to the instructions, after putting on protective equipment. You need to spray carefully, not forgetting about the back of the leaves, stems and soil. After that, an invisible layer will appear on the plant, which will prevent bacteria from penetrating into the nightshade.The frequency of treatment is every 10 days if late blight is detected and 2 weeks in case of fungal infection.

5 Cuproxat

A preparation of inorganic origin of the contact group of fungicides. The main component is copper sulfate pentahydrate. It is produced in the form of a 34.5% suspension concentrate. Recommended for efficient processing of tomatoes, zucchini, cucumbers, potatoes, beets. Serves as reliable protection against late blight, scab, powdery mildew, brown spot. Shows an instant result on the destruction of bacteria without the subsequent resumption of the problem. Resistant to high humidity. It is considered an environmentally friendly product. Shows high efficiency at temperatures above 0 degrees. Using according to the instructions eliminates the toxicity of the drug completely. Retains chemical activity against pathogenic microflora for a long time.

The solution must be prepared immediately before processing. To do this, first shake the container, open it, take the required amount of the product and transfer it to the sprayer, half filled with water. Then it is brought up to the required volume with water. It is best to disinfect during daylight hours in the absence of rain in the next 3 hours after work. Apply an even layer to the ground parts of the plant. Consumption is calculated depending on the cultivated crop: tomatoes, cucumbers - 50 ml per hundred square meters, beets - 70 ml per hundred square meters. For protection during the procedure, you must wear a respirator.

4 Abiga Peak

It is considered one of the best plant protection products from pests. It is popular with gardeners in the fight against late blight and fungal diseases. They can safely process indoor and garden plants, fruit, forest trees, vegetable crops. The main component is copper oxychloride, which causes a sharp regression in the growth and development of microorganisms, leading to their death. The product is non-toxic to pollinating insects, which allows them to be released onto the treated area after 12 hours. The fungicide is characterized by a high content of active substance in the composition, resistance to moisture, economical for large areas.

When preparing the product, you must strictly adhere to the instructions. First, a mother liquor is prepared - 50 ml of the drug is diluted in 1 liter of water. Pour it into a bucket of water and mix them intensively. It is applied to the plant using special devices with long spray tubes. You can process both a tall tree without using stairs, and low tomatoes without leaning towards them. All activities are carried out in the absence of wind and rain at temperatures from +9 degrees. It is advisable to use the tool for prophylactic purposes. Spray before flowering.

3 Infinito

One of the most effective modern chemical plant protection products against pathogenic microorganisms. Copes well with late blight, powdery mildew. Protects all parts of the plant. Does not have a toxic effect on birds, bees, worms. It is allowed to treat seeds with it before planting. Suitable for different plantings. Not detected in potato tubers after treatment. The defense mechanism is simple: getting on the plant, it has a destructive effect on bacterial spores, which leads to the cessation of the spread of infection. It has a particularly effective effect on at the beginning of infection.

The protection time reaches 2 weeks. In 2-4 hours from the moment of spraying, it penetrates into the plant. It is best to carry out the procedure during the growing season. A solution is prepared at the rate of 15 ml of concentrate per 5 liters of water. It is recommended to start with a preventive treatment after flowering. Reapply the product after 1-2 weeks. The maximum number of sprays per season is 4 times. The active ingredient fluopicolide is not addictive, but for a better result, the drugs should be alternated.

2 Previkur Energy

The best fungicide based on two main substances - propamocarb and fosetyl. This combination is optimal for killing pests and enhancing plant growth. Produced in high concentration - 600-840 g per 1 liter of the product. They do not need to spray the plant, applying directly to the soil, which allows them to consume vegetables a day after the procedure. The active substances from the root system rise through the stem to the leaves, protecting them from pathogenic microbes for 14 days. The components of the preparation do not enter the process of photosynthesis, therefore they are not found in fruits.

You can cultivate the soil with Previkur at any time, except for the period from July to October. They are introduced into the soil in various ways - by irrigation, drip, spraying. The prepared solution must be used immediately. It can be used to soak plant seeds before planting. For tomatoes, peppers, it is recommended to re-process two weeks after the seedlings have rooted. For the third time, the manufacturer advises to spray the soil after planting the plant in the ground. Protective properties are observed for at least 14 days after work. Fungicide resistance is low. To eliminate addiction, it is recommended to alternate the agent with other groups of chemicals.

1 Quadris

The main component azoxystrobin belongs to the group of strobilurins. In the composition of Quadris, there are no harmful chemical compounds of metal, sulfur, phosphorus, habitual to the consumer. Due to its unique composition, the product is considered one of the best in its field - it is not deposited in fruits and quickly decomposes in the environment into safe components. Substances of such composition have recently appeared on the free market, so the technique of their application is not familiar to everyone. Before work, it is imperative to study the annotation for the drug. The drug molecules do not act as bacteria fighters, but are embedded in them and interrupt the life cycle. At the same time, they decompose into simple substances - carbon, oxygen, hydrogen and nitrogen.

Quadris acts selectively, without damaging plant cells, but completely destroying the spores of microorganisms. It is enough to process it once, and for 3 seasons you get rid of pest problems in the garden. The duration of the action of the drug does not depend on natural phenomena. It remains effective in the temperature range from +4 to +30 degrees. The product interacts well with organic fertilizers, which increases the resistance of plants to external unfavorable factors. When working, you need to take into account the high toxicity of the product for humans, using protection. Best suited for small agricultural enterprises, farms.