Remedies for late blight on tomatoes: chemistry and folk

Gardeners and gardeners encounter a disease such as late blight every year. The disease is of fungal origin and develops more often in plants of the nightshade family, but is often found in cucumbers, fruit trees, and shrubs. If you don't take action, you can lose almost your entire harvest.

Our rating contains drugs that can be used to treat and prevent late blight in various plants, including tomatoes. eggplant, potatoes. Some of the funds have already earned recognition among the owners of subsidiary plots, while others are still little known.

Revus

A powerful fungicide with combined action, suitable for almost all crops. Penetrates into plant tissue in an hour, quickly distributes over leaves and stems, leaving no chance for late blight to spread rapidly.

The product is compatible with other drugs, as well as with mineral fertilizers. You can water your garden and garden within an hour and a half after treatment.

Advantages of Revus:

• indirectly affects productivity;
• improves the keeping quality of fruits;
• not washed away by rain;
• not dangerous for bees and fish;
• has extremely low toxicity to humans.

The action of the fungicide does not stop during a sharp cold snap and does not change in hot weather. The drug is produced in the form of a concentrated solution, and therefore the consumption is relatively small. Can be used on potatoes, onions, and tomatoes in open ground.

No shortcomings of the drug were identified during use.

Symptoms of late blight on tomatoes

First, let's find out what external signs make it clear that tomatoes are affected by late blight. The first spots appear on the bottom of the leaves: they are brown or whitish in color. However, very quickly the entire affected leaf becomes dark and begins to dry out rapidly.

Signs of late blight on tomatoes.

After the leaves, the stems darken. Since this is real rotting, the weakened stems can no longer fully deliver nutrients from the soil to the plant from the roots. As a result, the bush weakens quite noticeably. It may also be useful for you to know what you can plant after.

In the video - late blight on tomatoes:

If treatment is not taken at the stage of darkening of the leaves and stems, the rot will spread to the fruits - and then you can say a confident “goodbye” to the harvest.

General information about processing tomatoes in open ground

Today, any gardener can choose from a huge assortment of various medicinal products and preparations. In addition, every year there are more and more effective means. And folk wisdom has stored up many worthy recipes that can also be used to rid tomatoes of this disease.

However, it must be borne in mind that the cunning late blight very quickly gets used to and adapts to any chemical, biological and medicinal preparations, so it is necessary to constantly change the means.

It is very important to start processing tomatoes immediately at the first signs of late blight. The fact is that this fungal disease spreads extremely quickly. And it may not take long until all the bushes are affected by the disease. When cultivating plants in greenhouses/greenhouses, it is very important to sanitize surfaces before planting: walls, windows, frames, etc. In addition, it is also important to disinfect the soil.

Sanitary measures will help minimize the likelihood of tomatoes becoming infected with a dangerous fungal disease. Carry out the treatment using potassium permanganate and bleach.

In order to stop the spread of the disease, remove all parts of the plants affected by it. After removal, the infected remains of tomatoes must be burned: leaving them lying around near the garden means spreading the infection in a new circle. It will also be useful to learn about what to feed for a good harvest.

Video shows late blight treatment on tomatoes:

Watch the lower leaves of the bushes especially carefully after prolonged rains. Very often, it is due to high humidity that late blight appears, so when you find the first blackening leaves from below, you can simply remove them. How to stop the disease immediately. However, in this case you cannot do without additional treatment with drugs: but the concentration of the solution can be much weaker and safer for health.

But this information will help you understand how to fertilize with oloy, and how effective it is.
It will also be useful to know about which vegetables you can plant tomatoes after.

Maybe

Baktofit

Dual-directional drug - destroys bacteria and fungi. The main active ingredient is an antibiotic, destructive to the pathogens of powdery mildew, various rots, bacteriosis and late blight. Has a contact action.

The consumption rate for late blight crops is 20 ml/10 l of water. After treatment, the crop cannot be harvested for three days. Repeated treatment is permissible no earlier than a week later

Advantages of the drug:

• relatively low cost (200 rubles per bottle);
• wide spectrum of action;
• compatibility with fertilizers.

The contact effect can be attributed to the disadvantages: the drug is washed off with water, therefore it is not advisable to use it during periods of prolonged rains.

For a better result, the sheet is processed on both sides; the time required for manipulation increases, which is also a disadvantage.

Acrobat MC

The drug is a systemic type of action, recommended for use in therapeutic and prophylactic treatment against late blight, peronospora, and alternaria. Suitable for use in private household plots and large farms. Protects plants from fungus from the outside, prevents the spread of spores with juice through tissues.

Acrobat MC has a low toxic hazard and does not disturb the balance of microflora in the soil. Has a number of other advantages:

• long-term protection (up to 14 days);
• Possibility of use in breaks between rains;
• compatibility with other antifungal and antibacterial drugs.

The product is not dangerous for bees and fish. Can be used in close proximity to open water bodies. However, at least a month must pass from the last treatment to harvesting.

The product works best as a preventative, so plants are treated with it at the very beginning of the season.

Protection of potatoes from late blight and alternaria

Caring for potato plantings is a set of measures, including agrotechnical techniques and chemical treatments aimed at combating pests, diseases and weeds. The most significant losses of potato yield during the growing season occur due to late blight, and over the past few years, a strong development of Alternaria blight has been observed in many regions.

Late blight

The first symptoms of late blight may be observed during the germination period. The use of potato seed tubers for planting, even mildly affected by late blight, can cause an intense outbreak of the disease at the beginning of the season. On average, each batch of potato reproductions below 1 contains approximately 5% of latent blight infection - and this is approximately 2-3 thousand plants, potential sources of infection!

The use of preparations for treating tubers MAXIM and CELEST TOP can delay the first appearance of late blight by 2 weeks, and the application of fungicides KVADRIS and UNIFORM when planting potatoes - by 3–4 weeks. Not the least role in potato resistance to late blight is played by the use of microelements - copper, zinc, manganese, boron and magnesium.

Effective protection of potato plantings from late blight is achieved if the drugs are used prophylactically, before the disease spreads in the field. It must be remembered that if more than 1% of the leaf surface of plants is affected, the effectiveness of spraying is reduced by approximately 2 times.

To reduce the risk of an extremely early start to the development of late blight, the soil should be sprayed during the emergence of seedlings with SHIRLAN contact fungicide. The drug has the unique property of immobilizing late blight zoospores moving through capillaries to the soil surface from infected seed tubers.

During the phase of rapid growth and development of potatoes (after the plants close in a row), when the weight of the tops doubles every 4–5 days, it is advisable to use the systemic drug RIDOMIL GOLD MC, since it has high mobility in the plant, protects the growing point and newly growing leaves.

By the budding phase, potato growth slows down, but constant renewal of the leaf apparatus occurs. Therefore, during this period, it is advisable to use the translaminar fungicide REVUS, which is capable of penetrating into the leaf and being redistributed within it. REVUS has a low consumption rate and is able to prevent the germination of spores of the late blight pathogen Phytophthora infestans. REVUS is able to accumulate in a waxy layer on the surface of plant leaves, which ensures its long-lasting effect - up to 14 days and high resistance (1 hour after spraying) to being washed away by precipitation or during watering. Laboratory and field trials have also shown that REVUS provides excellent control of increasing leaf area.

Most often, plantings are simultaneously infected with two diseases - late blight and alternaria. With simultaneous infection, it is difficult to determine which disease dominates, and therefore to distinguish one from the other. And even weather conditions described as favorable for the development of a particular disease do not always guarantee an accurate diagnosis - pathogens mutate, adapting to other temperature and humidity regimes. The optimal solution in this case is the translaminar-systemic two-component fungicide REVUS TOP. It simultaneously protects plants from both late blight and alternaria.

After flowering, the growth of tops almost completely stops. During this period, the main task is to protect the tubers of the new harvest from infection.

Soon after flowering, the potatoes stop growing and the growth of tops almost completely stops. The main task during this period is to protect the tubers of the new harvest from infection. The optimal solution at this stage would be to use contact preparations BRAVO, DITAN M-45 and SHIRLAN.

Pre-harvest treatment of potatoes with fungicides is of particular importance. This technique is necessary to prevent contact of tubers with affected tops during harvesting. The drug SHIRLAN protects potato tubers from late blight better than other fungicides. Phytophthora spores remain viable in the soil for several weeks, and in the presence of droplet-liquid moisture on the surface of the tubers, they infect them during harvesting, transportation and storage. SHIRLAN reduces the number of viable spores on the tops and soil by the time of potato harvesting. The incidence of tubers is significantly reduced if you use a SHIRLAN tank mixture with REGLON SUPER desiccant. By burning the tops with REGLON SUPER, we destroy late blight mycelium on the leaves, and the use of SHIRLAN allows us to destroy spores that have fallen on the soil surface.

Alternaria blight

Alternaria can develop either independently or against the background of late blight. The causative agent of Alternaria blight persists on plant debris in the soil and on its surface, as well as on tubers.

Alternaria, which appears at the beginning of the season, indicates a violation in nutrition or watering. So, a lack of phosphorus and potassium is a factor favorable for the development of the disease. The development of the disease is most likely when growing early-ripening potato varieties susceptible to Alternaria blight.

The optimal temperatures for infecting potatoes with Alternaria are between 23 and 27°C.

The use of chemicals to combat potato Alternaria blight must begin when the first signs of the disease appear in the field.

There are several ways to combat Alternaria:

1. addition to anti-phytophthora fungicides of the systemic drug SKOR, which has a therapeutic effect within 96 hours from the moment of infection.
2. The use of the REVUS TOP fungicide eliminates the need to diagnose the disease - the drug is effective against all leaf spots.
3. the use of contact preparations BRAVO or DITAN M-45, effective against both late blight and alternaria. In addition, manzozeb, which is part of the drug RIDOMIL GOLD MC, enhances the effect on Phytophthora infestans and Alternaria solani.

Abiga Peak

Various sources call the product the best because it is completely safe for pollinating insects. The action of the drug is aimed at protecting garden, ornamental, vegetable and flower crops from late blight and a number of fungal diseases.

The main active ingredient is copper oxychloride. It kills fungi, slowing down their development. The drug has the following characteristics:

• safety for bees;
• good resistance to water;
• efficiency.

To prepare the solution, take 50 ml of concentrate per 1 liter of water, then the resulting solution is diluted in another 10 liters of water. Spray with a sprayer in calm weather.

The drug Abiga-Peak is more suitable for preventive than for therapeutic treatments.

Late blight on tomatoes - how to fight

Prevention of late blight on tomatoes

As they say, it is better to prevent late blight on tomatoes than to successfully fight it later, especially since late blight is difficult to completely defeat. How to protect tomatoes from late blight? Plant tomato seedlings in soil treated against late blight, after planting, mulch the area, and as the tomatoes grow, remove their lower leaves and shoots. Plant corn, peas or climbing beans around the perimeter of the tomato beds. Preventive treatment of tomatoes against late blight immediately after planting in the ground is carried out with Fitosporin-M or Trichodermin.

Late blight on tomato seedlings

If late blight appears on seedlings, remove the affected specimens and spill the substrate with Fitosporin-M solution. Or plant the seedlings in a new, sterile substrate, spilled with a solution of Fitosporin, treat the soil in the garden bed where you plan to plant the seedlings with the same preparation. But do not forget that at least a month should pass between treating the area with a fungicide and planting seedlings in the soil, and if you do not have this time, then it is better to treat the soil in the garden with Alirin.

Detailed article about late blight on tomatoes - treatment and prevention

How to treat tomatoes against late blight

In rainy summers, treatment of late blight on tomatoes will have to be carried out in 4-5 sessions with a break of 7-10 days. The last chemical treatment of tomatoes against late blight is carried out no later than three weeks before harvesting. How to spray tomatoes to increase their immunity and resistance to infection? Treatment with growth regulators Exiol (1 ml per 3 liters of water) or Oxyhumate (10 ml per 1 liter of water) has a good effect on increasing the resistance of tomatoes to disease.

The causative agent of the disease affects plants not only in open ground - sometimes late blight in a greenhouse can destroy most of the tomato crop. Phytophthora on tomatoes in a greenhouse is destroyed by the same means as in open ground, but with all precautions dictated by safety precautions, since it is easier to get poisoned by chemicals indoors than in the fresh air.

It should be understood that a single treatment of tomatoes against late blight will not give any results; this disease cannot be defeated at all, you can only suppress its development, but for this you will have to be patient.

Remedies for late blight on tomatoes

Treatment for late blight is carried out with such drugs as Bordeaux mixture, Ridomil Gold, Tattoo, Quadris, Baikal EM, Radiance. The treatment solution is prepared in accordance with the manufacturer's instructions. Late blight on tomatoes can be suppressed only after several treatment sessions with an interval of 7-10 days. And do not forget to alternate fungicides, since pathogens easily get used to the drugs. Try to use a stronger drug with each subsequent session.

• Grape mildew: treatment and prevention, control measures

How to grow tomatoes correctly - planting and care

Trichodermin

A latest generation fungicide designed to prevent fungal infections of plants, including late blight. Suitable for use on melons, tomatoes, potatoes, radishes, fruit and berry and coniferous trees, ornamental shrubs. Available in two forms: liquid and powder.

Trichodermin does not disturb the balance of soil microflora and is not dangerous for domestic animals or insects. The following advantages of the drug can be highlighted:

• extremely low toxicity;
• there is no accumulation effect in fruits;
• long-term protection (up to 1 month);
• systemic and contact action;
• resistance to precipitation.

You can safely cultivate plantings on any soil, and also mix Trichodermin with other drugs.

It has been established that the product strengthens the immunity of plants and indirectly helps to increase productivity.

Preparations for late blight

We offer you a brief description of the drugs that are used in the fight against late blight:

• Flower jaundice / Leptomotropus

• Fitosporin-M, Trichodermin, Alirin are broad-spectrum microbiological fungicides based on natural bacterial culture;
• Anthracol, Bordeaux mixture, copper sulfate are highly effective contact fungicides with widespread action;
• Quadris, Bravo - systemic fungicides for open and protected soil with preventive, therapeutic and eradicating effects;
• Ridomil Gold, Tatu, Oksikhom, Ordan are fungicides of systemic and contact action;
• Baikal EM is a biofertilizer that accelerates plant growth and fruit ripening.

Infinito

An expensive but effective means of protection against pathogenic plant microflora. The main purpose is the prevention and treatment of powdery mildew and late blight. Can be used for spraying potatoes: according to the results of studies, no active substance was found in the tubers.

Infinito is not dangerous for humans, birds, earthworms and insects. The product has other positive qualities:

• effective within 2 hours after treatment;
• the effect lasts up to 2 weeks;
• does not cause adaptation in microorganisms.

To prepare a solution, 15 ml of the drug is diluted in 5 liters of water. Plantings are treated up to 4 times per season. The best effect is achieved when alternating with other drugs of similar action.

The best results can be achieved by treating plants during the growing season.

Traditional methods of combating late blight

Many gardeners prefer to fight the scourge with folk remedies. This seems safer both for the plant itself and for humans.

• Garlic with potassium permanganate . 200 ml of water is mixed with 100 grams of chopped garlic. Leave to infuse for 24 hours. Then filter, mix with 7 liters of water and 1 gram of potassium permanganate. Spray the plants every 10 days before flowering.
• Yeast . 100 grams of fresh yeast are stirred with 10 liters of water. Pour the mixture under the roots.
• Milk with iodine . 15 drops of iodine are mixed with 1 liter of low-fat milk and poured into a bucket of water. Spray every 10-14 days.
• Salt . Mix a glass of regular salt in 5 liters of water and spray the tomato bushes. The saline solution creates a special film on the leaves that prevents spores from penetrating.
• Soda . 4 tablespoons of soda and 10 liters of water. Spray before flowering.
• Copper wire against late blight on tomatoes is used by all gardeners. The stem is pierced with 5 cm wire, the ends are bent at a distance of 10 cm from the ground. Copper prevents the development of the pathogen.
• Vinegar . Take half a glass of ordinary vinegar, dilute it in 5 liters of water and completely spray the infected bushes.
• Toothpaste . It contains many substances that are useful not only for people, but also for plants. Take a tube of white paste and dilute it in 5 liters of water. Spray the plants after rain.

If potatoes grow nearby, then they should be processed too. Because disputes often spread from it to tomatoes.

All of these methods have proven to be reliable methods for controlling late blight. For the best result, it is worth combining them, but always focus on the condition of the plants themselves, the soil and weather conditions. Because any overfeeding leads to a deterioration in the condition of the crop.

Ordan

A universal fungicidal preparation that can be used to combat late blight in open ground and in greenhouses. Spraying on cucumbers, tomatoes, potatoes, as well as ornamental plants is allowed. Has therapeutic and preventive effects.

Ordan is packaged in water-soluble bottles, which facilitates the process of preparing the solution and makes it safer. Advantages of the variety:

• moderate toxicity;
• Possibility of use at different growth phases;
• double action.

The drug is potentially dangerous for insects and humans; read the instructions before spraying.

When used correctly, microorganisms do not develop tolerance to the active substance.

What is late blight (late blight)

This is one of the most common diseases of field and garden crops, capable of “transitioning” from one plant to another. The causative agents of the disease, Phytophthora fungi, easily survive both in the soil and on its surface, infect tubers developing underground and above-ground fruits, and literally destroy plant foliage, inflorescences and flowers.

Signs of infection of garden or field crops with late blight:

• dirty brown spots with a light gray coating on the foliage of plants,
• oblong spots on the stems without clear boundaries,
• dark, irregularly shaped, often depressed and wet spots on the fruit,
• reddish-brown inside and dark on top, with clear-cut blotches on tubers (potatoes).

Related article:

Features of feeding onions and garlic with yeast: advantages, disadvantages and popular recipes

Favorable conditions for the development of late blight in the garden or field are air temperature not higher than +25˚, frequent rains. Pronounced signs of infection of plantings with Phytophthora fungi most often appear in the second half of July. But if you carefully and regularly inspect the beds, potato or grain fields, you can detect them much earlier, prepare medications in advance, and begin the fight against the disease in a timely manner.

Previkur Energy

A German drug with low toxicity: vegetables can be eaten within 24 hours after treating the garden. In addition to its antifungal effect, the product stimulates the growth of crops. You will have to pay well for such results - a liter bottle costs about 4,500 rubles.

Unlike a number of other drugs with similar effects, Previkur Energy is applied to the soil and not sprayed over plants. Having a systemic effect, it does not penetrate the fruits, but does a good job of destroying fungi on other parts of the crop.

Other advantages of the solution:

• duration of protection up to two weeks;
• the active substance does not accumulate in fruits;
• For the entire season, processing tomatoes and peppers three times is sufficient.

It has been established that fungi remain susceptible to the drug even after long-term use.

Treatment of seeds and seedlings of crops is allowed.

Fitosporin

A well-known drug of biological origin in Russia, intended for the prevention of common fungal diseases. Can be used to protect outdoor and indoor crops, does not pose a danger to humans and domestic animals.

The drug is effective against fomoz, powdery mildew, bacteriosis, black rot, late blight, scab, rust and other diseases. Has a number of advantages:

• does not lose properties under significant temperature fluctuations;
• characterized by a systemic effect, penetrating even into the roots;
• can be used at all phases of crop growth;
• helps combat stress during transplantation;
• works as a growth stimulator.

According to research results, Fitosporin is found to be completely safe for the environment.

The drug can be used to protect all types of plants, including ornamental ones.

Remedies for late blight

The main “allies” of late blight are dense plantings and high humidity between rows. Potatoes most often become the first victim of the disease, then the fungi move to neighboring plants. Spores are carried by the wind and on gardening tools. Measures to prevent mass infection of garden plantings should be taken immediately after the first signs of late blight are detected.

There are four types of remedies - chemical, biological, folk, pharmacy, and the choice of the best depends on the degree of spread of the disease in the area, the intensity of infection, and the time that the gardener plans to spend on the fight.

Chemical

Preparations for combating late blight from this category are considered the best in terms of effectiveness, but it is important to understand that they are toxic and can accumulate in the soil. Excessive use of them, as they say “for future use,” can have the opposite effect - the crop simply cannot be eaten.

Related article:

11 methods for fertilizing home crops

Chemicals against late blight must be used strictly in accordance with the instructions; when processing, it is necessary to use personal protective equipment - a respirator or mask, goggles, gloves.

Their chemical compounds and substances are most often used to combat late blight.

• Quadris is considered the best in terms of safety for soil and plants. The drug is based on azoxystrobin, which blocks the growth, development and reproduction of late blight spores. Some time after spraying the soil and plants, the substance breaks down into a safe nitrogen-carbon compound. The suspension is used immediately after preparation, sprayed according to the “fog” principle. The dosage should not exceed that recommended by the manufacturer. The disadvantages of the product are that it is highly toxic to humans, the inhabitants of water bodies, and that late blight spores can become accustomed to it.
• Copper sulfate is copper sulfide, which is rightfully considered one of the best drugs against fungal diseases. It can be used as an independent product or as part of a “Bordeaux” mixture - in a “duet” with lime milk. Copper sulfate is weaker than synthetic compounds, but it can be used for spring tillage and seedling treatment before planting. To prepare 10 liters of solution you will need 100 g of copper sulfate. The product is first dissolved in a small amount of water, then the resulting mixture is diluted in a bucket.

Related article:

Use of stove black and local fertilizers

• Topaz is often used for the prevention of not only late blight, but also gray rot, powdery mildew, and the appearance of “rust” on foliage. The drug is based on one component - the fungicide penconazole. It kills fungi at the spore stage. The product is produced in the form of an emulsion, sold in ampoules, bottles, and canisters. The drug can be used to treat a single crop or group plantings, open areas and greenhouses, has moderate toxicity to humans and animals, is compatible with fertilizers and pesticides, and tends to accumulate in plants, which prolongs its validity.
• Fundazol is a drug of synthetic origin from the class of benzimidazoles. It acts at the level of the cell nucleus of fungi and, together with late blight spores, destroys adult spider mites and other insects that can harm plants. Foundationazole can be used to treat adult plants, seedlings, seeds, and soil. The first results are visible 3 days after treatment, the protective properties last for another 7 days, even in rainy weather. The drug is toxic; when working with it, it is necessary to protect the respiratory tract, eyes, and skin of the hands.
• Hom is a contact pesticide based on copper oxychloride, used to combat bacterial and fungal diseases of plants, including late blight, in greenhouses and open areas. The drug does not penetrate into the structure of foliage, trunks and branches of the tops, forming a protective film on them, and is effective for six months. The product is more often used as a preventative, it is not dangerous if it comes into contact with the skin of the hands, but inhaling its vapors when working with it is dangerous.

Related article:

Three best fertilizers for geraniums without chemicals

According to botanists and reviews from gardeners, the best chemicals for combating late blight are Hom, Fundazol and Topaz.

Biological

The drugs for late blight in this series are based on substances produced by living organisms - beneficial fungi or bacteria. The products are effective, but not dangerous either to humans or to plantings in the garden or field. The best ones:

• Baktofit is a broad-spectrum preventive agent based on spores and cells of the bacterium Bacillus Subtilis (bacillus subtilis) suitable for grains, flowers, vegetables, and medicinal crops. It can be used to treat seeds and tubers before planting, water or spray plants during the period of development, flowering, fruit set, and wash the roots of seedlings before transplanting to another (permanent) place. In addition, experienced gardeners use Bactofid to reduce stress levels in plants after treatment with chemical pesticides and insecticides.
• Trichoderma Veride is a unique drug based on saprophytic fungi, which are as close as possible to antibiotics. It kills late blight on the same principle as it kills cultivated plantings - I parasitize on its cells. Like Bactofid, the product is suitable for any type of treatment of plants, areas against late blight, but is not compatible with formulations containing mercury or copper compounds. In addition to protecting against late blight and a number of other fungal plant diseases, Trichoderma Veride helps activate the “appetite” of plants, they begin to absorb nutrients from the soil faster and more fully.

Related article:

Green manure: what is it, how to use it

• Fitosporin-M is a systemic drug of biological origin, an analogue of Baktofit. The product is available in the form of a powder, liquid or paste for preparing a suspension, solution for treating plants against late blight, bacteriosis, root and basal rot and many other diseases. Like other preparations in the “bio” category, it requires certain conditions to increase efficiency - temperature conditions from +10 to +40˚С, without wind and rain, for at least 3 days after spraying foliage and tops. You can water plants with the drug, pour it into holes when planting seedlings in open ground or a greenhouse, and soak seeds in it.

Not all biological drugs against late blight are safe for humans. Before use, you must carefully study the instructions, accept all the manufacturer’s recommendations regarding the dosage of the product and ensuring your own protection against poisoning.

Folk remedies for late blight

The most effective, safe folk methods are considered to be saline solution, ash and garlic tincture. They are simple, safe for humans, the environment, and plants infected with late blight, but are destructive for late blight itself. Traditional methods are more often used as a means of preventing fungal diseases and are carried out in the spring, but treatments can also be carried out during the growing season, alternating with chemical and biological agents against late blight.

Related article:

The benefits of tomato tops for the garden

The ash is used in its pure form and as a tincture in water. In its pure form, ash is sprinkled immediately after planting seedlings, for example, tomatoes, onto the soil around the trunk. The procedure for preparing the ash infusion:

• 5 kg of raw materials are dissolved in 10 liters of water,
• stand for 4-5 days,
• add 40 g of grated laundry soap to the liquid,
• dilute the infusion to 30 liters with water.

The resulting composition is sprayed on plants for prevention and control if they already show signs of late blight.

It’s even easier to prepare a saline solution - dissolve 200 g of salt in 10 liters of water. It is used for spraying plantings using the “foggy” method. A film forms on the surface of the foliage and branches, protecting them from the penetration of harmful fungi. The measure is not therapeutic, but preventive.

Related article:

Making liquid fertilizer from dandelions

Both the fruits of the plant (cloves) and its tops are suitable for preparing garlic infusion. The raw materials are crushed, filled with water for a day, filtered, and supplemented with a few grams of potassium permanganate. The solution is applied to plants infected with late blight using a sprayer.

Hom

Russian inexpensive drug, similar in composition to Bordeaux mixture. It has a low cost - no more than 50 rubles per piece. Effective against various rots, including gray rot, as well as scab, late blight and spotting. Available in powder form, soluble in water. It quickly loses its properties, so it cannot be stored in solution.

Characteristics of the drug Hom:

• repeated spraying is allowed;
• ease of preparation of the solution;
• effectiveness in preventive treatment.

The drug is not without its drawbacks, the most significant being that the solution does not stick well to plants and is quickly washed off. It can be improved by adding cow's milk in a volume of 1% of the total amount of solution.

Hom is not compatible with preparations containing alkali.

Quadris

A modern fungicidal preparation intended for treating beds with onions, tomatoes, cucumbers, grapes and potatoes. Can be used in open and protected ground conditions. It is absorbed by plant tissues within 2 hours, after which moisture is not a problem - the effect is systemic.

It has a low toxic hazard class and is practically harmless to insects, humans and animals. There is no data on negative effects on soil. Gardeners and gardeners note the following advantages:

• a good prophylactic against various fungal diseases;
• with regular use, productivity increases;
• does not wash off with water.

There are known cases of successful application on the lawn to maintain the good condition of the grass.

The advantages include low consumption of the drug and the absence of odor when working with it. There are no significant shortcomings.

Profit Gold

Unlike most of the drugs presented in the rating, Profit Gold is classified as professional. The action is aimed primarily at the treatment of fungal diseases, including late blight. The drug is systemic, the active substance is carried with the juice to all parts of the plant, destroying fungi.

According to sellers and agricultural workers, Profit Gold has the following advantages:

• the effect does not depend on the weather, equally strong in rain or cold weather;
• granules dissolve in water without clogging the sprayer nozzles;
• the plant is cured completely, without signs of hidden infection.

With the help of the drug, late blight can be defeated even in cases where other means do not give the desired effect.

The product has a low class of toxic effects and does not adversely affect human health.

Ridomil Gold

A fungicide of universal use, it can be used on large agricultural lands or in small country farms. Refers to the latest generation of products developed for processing open ground crops - grapes, cucumbers, potatoes, tomatoes, onions. The action is systemic, once on the leaf the substances penetrate into the tissues and are distributed throughout the entire plant, including the smallest roots, by a current of juice.

The action begins faster than other drugs in this group - approximately 30-40 minutes after treatment. Other positive qualities:

• increasing productivity;
• compatibility with pesticides;
• safety for humans and animals.

The active ingredient of the drug penetrates even those shoots that have grown after treatment, thereby reducing the need for repeated spraying. The drug is not washed off from the green mass by rain and watering.

Ridomil Gold can be used even on extensive crops, in the conditions of large agro-industrial companies.

Bordeaux mixture

Fungicidal preparation of contact action. Contains two active ingredients: copper sulfate and calcium hydroxide. Available in the form of two separately packaged water-soluble powders, which are combined when preparing a working solution. The concentration of copper sulfate is 960 g/kg, calcium hydroxide is 900 g/kg.

Spectrum of action: a full range of bacterial and fungal diseases.

Crops: fruit trees and shrubs, vegetables, melons and ornamental crops.

Features of the drug. It has a high speed of action, about 2 hours. The period of protective action is 7-12 days. The permissible number of treatments per season varies greatly depending on the crop and the disease; it is indicated in the table on the packaging.

Application. Solutions of copper sulfate and calcium hydroxide are prepared in separate containers. Then a solution of copper sulfate is first poured into a large container, then, with constant stirring, a suspension of calcium hydroxide is added. Spraying is carried out only with freshly prepared solution. The consumption of the drug, depending on the crop, is 100-400 g of each substance per 10 liters of water.

Note. The drug is highly toxic. All precautions must be taken when working. In case of contact with skin, rinse thoroughly. In case of contact with eyes, rinse thoroughly, drop in 0.5% dicaine solution, and consult an ophthalmologist. If swallowed, immediately consult a doctor and provide first aid - do a gastric lavage with a 0.1% solution of potassium permanganate, induce vomiting, give a saline laxative and diuretic.

Ditan M-45

Fungicidal preparation of contact action. Contains the active ingredient mancozeb. Available in the form of a wettable powder in packages of 10 g. The concentration of the active substance is 800 g/kg.

Range of action: Alternaria, late blight and other fungal diseases.

Crops: potatoes, tomatoes, indoor plants.

Features of the drug. Has a concomitant effect on spider mites. The period of protective action is 1-2 weeks. The product is resistant to rain. The first treatment is done preventively, before the plants become infected. Next, spray when signs of disease appear at intervals of 7-10 days. The last treatment is carried out no later than 20 days before harvest.

Application. To prepare a working solution, 10 g of powder is diluted in 5 liters of water. The solution consumption is 1 liter per 10 m2. For indoor plants, make a solution in the proportion of 1-2 g per 1 liter of water.

With frequent use of the same drug, pathogens can adapt to it. Therefore, it is recommended not to exceed the maximum number of treatments per season and periodically use preparations with different active ingredients.

Note. The drug is toxic. Take all precautions when working. In case of contact with skin or mucous membranes, rinse with plenty of running water. If swallowed, consult a doctor and provide first aid - drink several glasses of warm water with a suspension of activated carbon and induce vomiting.

Kurzat M

Fungicidal preparation of contact and systemic action. Contains two active ingredients: mancozeb and cymoxanil. Available in the form of water-dispersible granules in packages of 1 kg and 10 kg. The concentration of mancozeb is 680 g/kg, cymoxanil is 45 g/kg.

Spectrum of action: late blight, alternaria, mildew, black spot, dry spot, pernospora, macrosporiosis, rhizoctonia.

Crops: potatoes, tomatoes, onions, grapes.

Features of the drug. Mancozeb provides external protection to plants, having a contact effect. Cymoxanil has a translaminar effect, protecting plants from the inside. The drug quickly stops plant diseases (in 1-2 days on potatoes, onions and tomatoes, in 2-3 days on grapes). It is recommended to do the first treatment prophylactically, before signs of the disease appear. The protective period is 2 weeks for vegetables, 30 days for grapes. The permissible interval between treatments is 10-14 days.

Application. To prepare a working solution, 10-20 g of the drug is diluted in 10 liters of water (in case of severe damage, up to 50 g). Spray only with freshly prepared solution. The approximate consumption of the drug is 20-25 g per 100 m2.

Note. The drug is toxic. When working, all safety precautions must be observed. In case of contact with skin and mucous membranes, rinse thoroughly with running water. In case of contact with eyes after rinsing, consult a doctor. If swallowed, provide first aid (gastric lavage with a suspension of activated carbon) and consult a doctor.

Kurzat R

Fungicidal preparation of local-systemic contact action. Contains 2 active ingredients: copper oxychloride and cymoxanil. Available as a wettable powder in packs of 100 g, 500 g and 1 kg. The concentration of copper oxychloride is 89.5 g/kg, cymoxanil is 42 g/kg.

Spectrum of action: late blight, downy mildew.

Crops: potatoes, cucumbers.

Features of the drug. The cymoxanil included in the drug gives a triple effect of the drug - it can be used for the treatment and prevention of plants, as well as to suppress sporulation in pathogenic fungi. Copper oxychloride provides additional benefits because it has an antibacterial effect and suppresses the activity of pathogens. The drug is actively absorbed by plant tissues, which determines its systemic effect - the ability to protect the plant not only from the outside, but also from the inside. The effect occurs after 2-6 hours. The first treatment is carried out for preventive purposes, before the appearance of signs of the disease, or for therapeutic purposes, at an early stage of the development of the disease. Subsequent ones as needed. In total, up to 4 treatments can be carried out per season, the optimal interval is 10-12 days.

Application. The required amount of the drug is diluted in a small volume of water, then the water is added to 10 liters. For late blight of potatoes and downy mildew on open ground cucumbers, the solution is prepared at the rate of 50 ml of the drug per 10 liters of water, for closed ground cucumbers 20-30 ml per 10 liters of water. Spraying is carried out in dry, windless weather, in the morning or evening. Use only freshly prepared solution.

Note. The drug is moderately toxic. When working with it, personal protective equipment should be used. In case of contact with skin or mucous membranes, rinse for a long time with running water. If swallowed, perform gastric lavage with a suspension of activated carbon. If signs of poisoning persist, consult a doctor.

Ordan

Fungicidal preparation of contact-systemic action. Contains the active ingredients copper oxychloride and cymoxanil. Available in the form of a wettable powder, in packages of 25 g. The concentration of copper oxychloride is 689 g/kg, cymoxanil 42 g/kg.

Spectrum of action: late blight, alternaria, peronospora, mildew.

Crops: vegetables and flowers, grapes.

Features of the drug. Two components of the drug provide double protection for plants - outside and inside. Treatment is carried out 3 times per season. The period of protective action for potatoes and grapes is 20 days, for other crops - 5 days. The last treatment of potatoes and grapes is carried out no later than 20 days before harvest, for other crops - no later than 5 days.

Application. For vegetable and flower crops, the working solution is prepared at the rate of 25 g of the drug per 5 liters of water, for grapes 25 g per 10 liters of water. The powder is first dissolved in a small amount of water, then, with constant stirring, water is added to the required volume. Use only freshly prepared solution. Spraying is carried out in dry, windless weather.

Note. The drug is moderately toxic. When working, personal protective equipment should be used. In case of contact with skin or mucous membranes, rinse for a long time with running water. If swallowed, perform a gastric lavage with a suspension of activated carbon, then consult a doctor.

Profit

Fungicidal preparation of contact action. Contains the active ingredient mancozeb. Available in the form of a wettable powder, in packages of 10 g. The concentration of the active substance is 800 g/kg.

Spectrum of action: late blight, alternaria and some other fungal diseases.

Crops: potatoes, tomatoes, indoor plants.

Features of the drug. Profit provides external protection for plants. Enriched with manganese and zinc, which have a beneficial effect on plant growth and development. 3 treatments are done per season. The first treatment of potatoes is carried out during the budding period, of tomatoes - when the first signs of the disease appear. The period of protective action is 10-12 days. The last treatment is carried out no later than 20 days before harvest.

Application. To prepare a working solution, 10 g of powder is diluted in 10 liters of water (for indoor plants, 1-2 g of powder per 1 liter of water). Spraying is carried out in dry, windless weather, ensuring uniform wetting of the leaves on both sides.

Note. The drug is toxic. When working, be sure to use personal protective equipment. In case of contact with skin or mucous membranes, rinse with plenty of running water. If swallowed, do a gastric lavage with a suspension of activated charcoal and consult a doctor.

Profit Gold

Fungicidal preparation of contact and systemic action. Contains two active ingredients: cymoxanil and famoxadone. Available in the form of water-dispersible granules, in packages of 1.5 g, 3 g and 6 g. The concentration of active ingredients is 250 g/kg.

Spectrum of action: late blight, alternaria, mildew.

Crops: potatoes, tomatoes, grapes.

Features of the drug. The first active ingredient, cymoxanil, actively penetrates plant tissue and provides protection from the inside. The second substance, famoxadone, provides external protection to the plant, has good adhesion to the surface of the leaves and makes the drug resistant to being washed off by rain. The effect of the drug occurs 3-4 hours after treatment. The period of protective action is 8-12 days. During the season, a maximum of 4 treatments are carried out on potatoes and tomatoes, and a maximum of 3 treatments on grapes. The first treatment is done for prophylactic purposes, before signs of the disease appear. Subsequent ones - as needed, the optimal interval is 8-10 days. The last treatment is done no later than 30 days before harvest for grapes, no later than 15 days for tomatoes and potatoes.

Application. To prepare a working solution for processing grapes, 4 g of the drug is diluted in 10 liters of water. The solution consumption is 10 l per 100 m2. The working solution for tomatoes and potatoes is prepared at the rate of 6-10 g per 10 liters of water, consumption is 5-10 liters per 100 m2. Spraying is carried out in dry, windless weather, in the morning or evening hours. When processing, it is necessary to thoroughly and evenly wet the entire surface of the leaves to ensure effective contact action. Use only freshly prepared solution.

Note. The drug is moderately toxic. When working with it, all precautions should be taken. In case of contact with skin or mucous membranes, rinse with plenty of running water. If swallowed, perform gastric lavage with a suspension of activated carbon. If signs of poisoning persist, consult a doctor.

Raek

Systemic fungicidal drug. Contains the active ingredient difenoconazole. Available in the form of an emulsion concentrate, in ampoules of 2 ml and bottles of 10 ml, 50 ml and 100 ml. The concentration of the active substance is 250 g/l.

Range of action: powdery mildew, late blight, alternaria, leaf curl, scab and other fungal diseases.

Crops: fruit trees, tomatoes, potatoes, indoor plants.

Features of the drug. It has both therapeutic and effective preventive effects. The systemic effect is expressed in translaminarity - the ability of the drug to be quickly absorbed by plant tissues. Thanks to this, the drug is resistant to weather conditions. Effective within 2 hours after spraying. The period of protective action is 7-10 days. For fruit trees, 3-4 treatments per season are acceptable, for vegetables no more than two.

Application. For fruit trees, a working solution is prepared at the rate of 2 ml of emulsion per 10 liters of water. The solution consumption is 2-5 liters per tree. For vegetables, 5 ml of emulsion is diluted in 5 liters of water, this amount of solution is enough for 100 m2. For indoor plants, the proportion is 0.6-2 ml per 1 liter of water.

Note. The drug is moderately toxic. When working with it, all precautions should be taken. In case of contact with skin and mucous membranes, rinse for a long time under running water. If swallowed, perform gastric lavage with a suspension of activated carbon. If necessary, consult a doctor.

Ridomil gold

Fungicidal preparation of contact and systemic action. Contains two active ingredients: mancozeb and mefenoxam. Available in the form of water-dispersible granules or as a wettable powder, in packages of 10 g, 20 g and 50 g. The concentration of mancozeb is 640 g/kg, mefenoxam 40 g/kg.

Spectrum of action: late blight, alternaria, peronospora, mildew.

Crops: potatoes, cucumbers, tomatoes, onions, grapes.

Features of the drug. The first substance of the drug, mancozeb, acts as a contact fungicide, providing external protection to the plant. The second substance, mefenoxam, has a systemic effect, actively penetrating the plant tissue and protecting it from the inside. The maximum number of treatments per season for potatoes, onions and cucumbers is 3 times, for tomatoes and grapes 4 times. The first treatment is recommended for preventive purposes, before signs of disease appear. Subsequent ones as needed. The optimal interval between treatments is 10-14 days. The last treatment is carried out no later than 3 weeks before harvest for grapes, no later than 2 weeks for potatoes and onions, 10 days for tomatoes and 5 days for cucumbers.

Application. To prepare a working solution, 10 g of the drug is diluted in a small amount of water, then water is added to 4 liters with continuous stirring. The solution consumption rate when spraying is 10 liters per 100 m2. Spraying is carried out in dry, windless weather, in the morning or evening. The prepared solution must be used within 1 day. When spraying, you should carefully and evenly wet the plant leaves on both sides to ensure maximum contact effect.

Note. The drug is toxic. When working with it, you should take all precautions, use protective clothing, goggles, and a respirator. In case of contact with skin or mucous membranes, rinse thoroughly with plenty of running water. If swallowed, immediately consult a doctor and provide the victim with first aid - give the victim several glasses of warm water with a suspension of activated carbon (5-6 g per glass), induce vomiting.

Score

Systemic fungicidal drug. Contains the active ingredient difenoconazole. Available in the form of an emulsion concentrate, in ampoules and bottles of various capacities. The concentration of the active substance is 250 g/l.

Spectrum of action: late blight, alternaria, powdery mildew, scab, leaf curl, clusterosporia, coccomycosis.

Crops: fruit trees and shrubs, vegetables, indoor plants.

Features of the drug. Scor has both therapeutic and long-term preventive effects. Systemic properties allow the drug to protect the plant from the inside. The first treatment is recommended for preventive purposes, before signs of the disease appear. Subsequent ones as necessary, the optimal interval between treatments for potatoes, carrots, tomatoes and apple trees is 10-14 days, for other crops 7-8 days. The maximum number of treatments per season for fruit trees is 3 times, for other crops - 2 times. The effect of the drug occurs 2 hours after treatment. The period of protective action is 2 weeks.

Application. The concentration of the working solution for spraying fruit trees is 2 ml per 10 liters of water. The solution consumption is 2-5 liters for each tree. For other crops, the concentration of the working solution is 10 ml per 10 liters of water; this amount of solution is enough to treat 200 m2. The working solution should be used immediately after preparation. Spraying is carried out in dry, windless weather, in the morning or evening.

Note. The drug is moderately toxic. All standard precautions should be followed when handling it. In case of contact with skin or mucous membranes, rinse thoroughly with running water. If swallowed, perform gastric lavage with a suspension of activated carbon. If signs of poisoning persist, consult a doctor.

Acrobat MC

Fungicidal preparation of contact and local-systemic action. Contains 2 active ingredients: mancozeb and dimethomorph. Available in the form of water-dispersible granules in packages of 20 g. The concentration of mancozeb is 600 g/kg, dimethomorph 90 g/kg.

Spectrum of action: late blight, Alternaria blight, peronosporium blight, mildew and other fungal diseases.

Crops: potatoes, cucumbers, sugar beets, grapes.

Features of the drug. The first active ingredient of the drug has a contact effect and provides external protection to plants, the second penetrates into tissues and protects the plant from the inside. The first treatment is carried out for preventive purposes, and the second treatment is carried out when signs of disease appear. The period of protective action is 2 weeks. The last treatment is carried out no later than 20-30 days before harvest, for beets no later than 50 days.

Application. To prepare a working solution, 20 g of the drug is dissolved in 5 liters of water. This amount of solution is enough to spray 100 m2. Spraying is carried out in dry, windless weather, thoroughly wetting the plant leaves on both sides.

Note. The drug is toxic. When working with it, personal protective equipment should be used. In case of contact with skin or mucous membranes, rinse for a long time under running water. If swallowed, immediately consult a doctor and provide the victim with first aid - give the victim several glasses of warm water with a suspension of activated carbon and induce vomiting.

Tattu

Fungicidal preparation of contact-systemic action. Contains the active ingredients mancozeb and propamocarb hydrochloride. Available as a suspension concentrate in bottles of 30 ml, 60 ml and 500 ml. The concentration of mancozeb is 301.6 g/l, propamocarb hydrochloride is 248 g/l.

Spectrum of action: used against a wide range of diseases, in particular late blight, root rot, peronospora, etc.

Crops: potatoes, tomatoes.

Features of the drug. The drug is enriched with manganese and zinc, which has a beneficial effect on plant growth and development. It has a double protective effect and has a detrimental effect on pathogens both outside and inside plants. No more than 3 treatments are carried out per season. The period of protective action is 10 days. The first treatment is done for preventive purposes. The last treatment is carried out no later than 20 days before harvest.

Application. To prepare a working solution, 60 ml of the drug is diluted in 10 liters of water. This amount of solution is enough to treat 200 m2. Spraying is carried out in dry, windless weather, only with a freshly prepared solution.

Note. The drug is toxic. When working with it, be sure to use a respirator, safety glasses and gloves. In case of contact with skin or mucous membranes, rinse with plenty of running water. If swallowed, immediately consult a doctor and provide the victim with first aid - perform a gastric lavage with a suspension of activated charcoal and give a saline laxative.

Hom

Copper-containing fungicidal preparation of contact and systemic-local action. Contains the active ingredient copper oxychloride. Available in the form of a wettable powder in packages of 20 g and 40 g. The concentration of the active substance is 900 g/kg.

Range of action: late blight, scab, mildew, downy mildew, rust, spotting, leaf curl, gray rot.

Crops: pome and stone fruit trees, grapes, tomatoes, cucumbers, potatoes, onions, flower crops.

Features of the drug. The drug protects plants both outside and inside, actively penetrating into tissues. 2-6 treatments can be carried out per season. The period of protective action is 10-14 days. Treatment should not be carried out during the flowering period.

Application. To prepare a working solution, 40 g of the drug is diluted in 10 liters of water. This amount is enough to spray 100 m2 of beds or 2-4 trees. Use only freshly prepared solution. Spraying is carried out in dry, windless weather.

Note. The drug is moderately toxic. When working, precautions should be taken. In case of contact with skin and mucous membranes, rinse with plenty of running water. If swallowed, perform gastric lavage with a suspension of activated carbon. If necessary, consult a doctor.

Alirin-B

A broad-spectrum fungicidal preparation. As an active ingredient it contains soil microflora Bacillus subtilis strain VIZR-10. Available in tablet form, in packs of 20 pieces. The concentration of the active substance is 109 CFU/g.

Range of action: powdery mildew, gray mold, rust, scab, late blight, alternaria blight, moniliosis, trachomycosis wilt, cercospora blight, septoria blight, rhizoctonia blight, downy mildew.

Crops: all garden crops and indoor plants.

Features of the drug. It is used for both treatment and prevention of diseases. Suppresses pathogens on plants and soil. Restores beneficial soil microflora after treatment with chemicals. Treatment with Alirin-B makes it possible to reduce the accumulation of nitrates in the crop by 30-40%, and also increases the content of ascorbic acid and protein in it by 20-30%. During the season, 2-3 treatments are carried out with an interval of 1 week.

Application. To prepare the working solution, the required number of tablets is dissolved in a small volume of water, then water is added to the required volume. To cultivate the soil in the beds (root watering), make a solution at the rate of 2 tablets per 10 liters of water (per 10 m2). For spraying plants, the concentration is increased 10 times (2 tablets per 1 liter of water). When spraying, it is recommended to add liquid soap to the solution (to ensure better adhesion of the drug to the plants) at the rate of 1 ml of soap per 10 liters of water. Plants are treated with the above solution if there are signs of disease. For treatment for preventive purposes, the concentration of the solution is halved. The prepared solution can be used within one day.

Note. The drug is safe for humans.

Gamair

Fungicidal preparation-bactericide of contact action. The active ingredient is live bacteria Bacillus subtilis strain M-22 VIZR. Available in tablet form, in packs of 20 pieces. The concentration of the active substance is 109 CFU/g.

Range of action: scab, powdery mildew, gray mold, root rot, late blight, alternaria, trachomycosis wilt, rhizoctonia, cercospora, septoria, downy mildew.

Crops: fruits and berries, vegetables and flowers, indoor plants.

Features of the drug. Gamair has both therapeutic and preventive effects. Equally effectively suppresses the vital activity of pathogens both on the plant and in the soil. Treatment can be carried out by spraying, root watering, or watering the hole before planting. In case of severe damage to plants, it is recommended to use Gamair in combination with chemical fungicides. The drug restores beneficial microflora in the soil, has a concomitant growth-stimulating effect, and does not cause adaptation of pathogens even with repeated use. The number of treatments per season is not limited. The first treatment is carried out in early spring for preventive purposes, repeating it 2-3 times with an interval of 1 week. Subsequent treatments are carried out as needed - when the first signs of disease appear.

Application. To prepare a working solution, 2 tablets are diluted in a small volume of water, then water is added to the required volume. When soil watering, 2 tablets per 10 liters of water (per 10 m2), when spraying plants, 2 tablets per 1 liter of water. For better adhesion to the plant, add liquid soap to the spraying solution at the rate of 1 ml per 10 liters of water. The solutions described above are used for treatment for medicinal purposes. For preventive treatment, prepare a solution with half the concentration. More precise processing times and drug consumption for each crop are given in the table on the packaging.

Note. The drug is safe for humans.

Gaupsin

A universal fungicidal-insecticidal entomopathogenic drug with broad action. The active ingredient contains live bacteria Pseudomonas aureofaciens. Available in the form of an aqueous suspension, in containers of 1 l and 5 l.

Range of action: powdery mildew, bacteriosis, late blight, septoria, black rot, scab, maniliosis, curl, white spot, fruit rot, mildew, aphids, codling moth, leaf rollers, grape itch, cherry and plum flies.

Crops: all garden crops.

Features of the drug. Gaupsin is unique in that it simultaneously combines the action of both a fungicide and an insecticide. The entomopathogenic bacteria of the drug effectively destroy insect pests and suppress the development of diseases by fighting pathogens inside the plant. In addition, the drug has a growth-stimulating effect, increases the resistance of a number of crops to drought and frost, and extends the shelf life of the crop. The effect of the drug occurs 1-2 days after treatment. The period of protective action is 2 weeks. The number of treatments per season is not limited, the optimal interval between treatments is 15 days. On fruit trees, treatment is carried out starting from flowering, on grapes - from the end of May, on vegetables - when the first signs of diseases appear or when the number of pests increases. The drug is also used for pre-planting treatment of seeds, roots of seedlings, seedlings and for processing crops before storage.

Application. For spraying, the drug is diluted with water in the proportion of 1 part of the drug to 50 parts of water. Only dechlorinated water should be used - chlorine is destructive to the microorganisms of the drug. The water temperature should be room temperature (18-20 °C). The working solution should be allowed to brew for 30 minutes. Treatment consumption for 100 m2 is 60 ml of the drug per 3 liters of water. Spraying is carried out at an air temperature of at least 10 °C, in dry, windless weather, in the morning or evening hours, with a low probability of precipitation in the next 1-2 days. If it rains during this time, spraying must be repeated. For pre-planting treatment of seeds or plants, prepare a solution at the rate of 30-50 ml of the drug per 1 liter of water.

Note. The drug is low toxic. All standard precautions should be followed when handling it. In case of contact with skin or mucous membranes, rinse with running water. If swallowed, take several tablets of activated charcoal. If signs of poisoning persist, consult a doctor.

Planriz

Fungicidal bacterial preparation of systemic action. The active ingredient contains living cells of the soil bacterium Pseudomonas fluorescens strain AP-33. Available in the form of an aqueous suspension, in bottles of various capacities. 1 g of the drug contains 3-4 billion bacterial cells.

Range of action: powdery mildew, blackleg, gray and brown rot, macrosporiosis, late blight, rhizoctonia, brown spot, vascular bacteriosis, fusarium wilt, mildew, oidium, brown rust and others.

Crops: fruit trees, grapes, strawberries, vegetables.

Features of the drug. Planriz not only has a therapeutic effect against fungal and bacterial diseases, but also serves to prevent these diseases, improves plant immunity, and is a growth stimulator. Does not cause adaptation of pathogens even with repeated use. The number of treatments per season is not limited; they can be carried out during any growing season. The last treatment can be done 1 day before harvest. The drug does not accumulate in plants and fruits, allowing you to obtain an environmentally friendly harvest. Does not have a detrimental effect on beneficial soil microflora.

Application. The concentration of the working solution varies greatly depending on the culture and disease; it should be specified in the table given on the packaging. Spraying is carried out in dry, windless weather, in the morning or evening. Use only freshly prepared solution.

Note. The drug is safe for humans.

Trichodermin

Fungicidal preparation for the treatment of plants and soil treatment. The active substance is a substrate containing spores and other waste products of the soil fungus Trichoderma lignorum. Available in powder form, in sachets of 10 g. The concentration of the active substance is about 2 billion spores per 1 g of the drug.

Range of action: root and basal rots, fruit rots, seed infections, macrosporiosis, fusarium, rhizoctonia, late blight and other diseases caused by a number of harmful soil fungi.

Crops: fruits and berries, vegetables and flowers, indoor plants.

Features of the drug. Trichodermin has both therapeutic and preventive effects. The fungus, which is the basis of the drug, is an antagonist to other soil fungi. It forms a powerful mycelium in the soil, which entwines the mycelium of harmful fungi, parasitizes them and suppresses their growth until destruction. In addition, the drug prevents the entry of waste products of pathogenic fungi into the plant and improves the health of the soil. It is used in various ways - adding to the soil before sowing, treating planting material, root watering, spraying.

Application. For preventive soil treatment before planting, dry powder is added to the soil at the rate of 10 g of the drug per 10 liters of soil. To treat planting material, prepare a suspension of the drug at the rate of 10 g per 1 liter of water. The planting material is soaked in this solution for several hours. To treat plants by root watering, prepare a solution of the same concentration. For spraying, prepare a solution at the rate of 10 g of the drug per 5 liters of water. Spraying is carried out starting from the formation of the first leaves and throughout the entire growing season, with an interval of 10-20 days. The prepared solution can be stored in the refrigerator for up to 1 month. Before use, it must be warmed to room temperature.

Note. The drug is safe for humans.

Trichophyte

A systemic fungicidal preparation for the treatment of plants and soil treatment. The active substance is a substrate containing spores and other waste products of the soil fungus Trichoderma lignorum. Available in the form of an aqueous suspension, in 250 ml bottles and 1 l, 5 l and 20 l canisters.

Spectrum of action: clusterosporiasis, coccomycosis, leaf curl, scab, powdery mildew, fruit rot, gray and white rot, black leg, fusarium, ascochyta blight, late blight.

Crops: fruits and berries, vegetables and flowers, indoor plants.

Features of the drug. The basis of the drug is a soil antagonist fungus that parasitizes the mycelium of other soil fungi. This is the principle of action of the drug. Once in the soil, the fungus develops a powerful mycelium, suppressing the growth of other fungi to the point of destruction. In addition, this type of fungus produces an antibiotic during its life, which destroys harmful bacteria that cause plant diseases. In addition to its protective and therapeutic effects, the drug improves the beneficial microflora of the soil, restoring it after treatment with chemicals. A concomitant effect of Trichophyte in the soil is the rapid decomposition of chemical and organic compounds, so the drug also functions as a fertilizer. Trichophyte is used for spraying plants, root watering and pre-planting treatment of soil and seeds. The first treatment is done for preventive purposes, during the spring digging of the earth. Subsequent ones - as needed, when signs of disease appear. The number of treatments per season is not limited. The drug does not accumulate in plants and fruits, allowing you to harvest an environmentally friendly harvest.

Application. When cultivating the soil, the consumption of the drug is 30-40 ml per 1 m2. To soak seeds before planting, 30-40 ml of the drug is diluted in 1 liter of water. This amount is enough to process 1 kg of seeds. For spraying, prepare a working solution at the rate of 20 ml per 10 liters of water. Spraying is carried out in dry, windless weather, in the morning or evening. The prepared solution should be used within 1 day.

Note. The drug is safe for humans.

The drugs themselves and their descriptions are taken from the book by Natalia Dmitrieva and Anna Gavrilova

“Diseases and pests of fruits. The latest drugs for protection"

Tattu

A drug of combined action aimed at combating and preventing fungal diseases, stimulating its growth, and increasing resistance to pathogenic microflora. Designed for the treatment of late blight, alternaria and other diseases on potatoes and tomatoes.

Despite the low toxic hazard, it is necessary to work with the product with respiratory and vision protection. At the same time, the active substances are not harmful to bees. Other advantages compared to first generation fungicides:

1. Systemic action, penetrates plants after 3 hours.
2. Maintaining the balance of microflora in the soil.
3. Duration of action - for the entire growing season.

The drug has low consumption - 60 ml of concentrate per 10 liters. With this volume, two hundred square meters of land can be processed.

According to the instructions for use, Tattu belongs to class 2 toxic hazard products, that is, it can cause poisoning in humans during operation. Protective equipment is required.

Preparations against late blight of tomatoes

Tomatoes can be treated against late blight using both biological products and chemicals . (fungicides). Biological products are somewhat weaker than chemical ones, but safer. Disease control chemicals can persist in fruit tissue for up to 30 days .

Recently, folk remedies are often used to treat tomatoes against late blight. Let's look at what and how to treat tomatoes with preparations.

Biological products against late blight

There are more modern and environmentally friendly methods of combating late blight and other fungal diseases - with the help of biological preparations. They contain living microorganisms that feed on fungal spores. And if chemical plant protection products suppress almost all the simplest soil fungi, including useful ones, then biological preparations do not allow pathogenic fungi to spread.

Among the biological products against late blight, the following are used:

• Alirin-B is a biological preparation against plant diseases, containing the bacteria Bacillus subtilis. Consumption rate for late blight: 2 tablets per 10 liters of water when watering plants, and 2 tablets per 1 liter of water when spraying. Repeated treatment after 5-7 days, up to 3 treatments in total.
• Gamair is a biological preparation against late blight, the consumption of the drug is 1 tablet per 5 liters of water when watering, and 2 tablets per 1 liter of water when spraying. Treatments are repeated every 7 days, three times.
• Fitosporin-M is a biofungicide in the form of a dark brown paste, liquid or powder. In gardening, either powder or paste is used. (more details below)

Read more about Fitosporin-M for late blight

Phytosporin is especially popular for the treatment and prevention of late blight on tomatoes. Fitosporin-M has a weaker effect compared to chemical drugs. It rather only suppresses the infection, but this drug is simply irreplaceable in organic farming . You can spray the plants and water the soil regularly. Tomato bushes can be treated with phytosporin during fruiting. If the product gets on the fruits, they can be used for food even on the day of treatment (there is no waiting period).

For spraying, dilute 10 g of powder per 5 liters of water, paste 3 teaspoons of concentrate per 10 liters of water. It is important to spray in the evening, preferably when it is already getting dark - the bacterium quickly dies in the light. If your tomatoes are planted in open ground, do not spray in cold weather.

The drug Fitosporin-M is compatible with many chemicals:

• insecticides - Decis, Aktara, Fitoverm;
• fungicides - Strobi, Quadris, Tilt premium, Fundazol, Vitivax 200.
• with fertilizers and growth regulators (Zircon, Ribav-Extra, Epin, Obereg, Plantafol);
• antibiotic drugs - Fitolavin.

It is important not to combine with solutions that have an alkaline reaction!

It should be noted that some variants of Fitosporin-M contain GUMI (humic acids), for example Fitosporin paste. In this case, it is not advisable to combine them with growth stimulants.

Chemicals against late blight on tomatoes

• Bordeaux mixture. A contact action product that has been tested for years. Perfectly protects tomatoes from fungus . In addition, the composition effectively helps in the fight against the most common diseases.
• Oxychom (copper oxychloride + oxadixil) is a contact-systemic fungicide against late blight. Dilute 1 packet (4 grams) per 2 liters of water. Plants are sprayed as necessary up to three times with an interval of 10-14 days.
• Ordan - (copper oxychloride + cymoxanil) - in the form of a wetting powder. Spray twice with an interval of 7-14 days, at the rate of 25 g per 5 liters of water.
• Ridomil Gold (mancozeb + mefenoxam) is a combined fungicide against late blight, a very effective product, available for personal households in 10 g bags. You need to dilute 1 bag (10 g) in 2 liters of water. This is enough to process 40 square meters. m. planting tomatoes. Spray the first time when the tops of the bushes close in the beds, the second time after 10-14 days.
• Quadris is a new systemic product with a wide spectrum of effects that can protect plants from many diseases. It belongs to a new class of drugs - strobilurins . The composition, as soon as it hits the foliage, suppresses painful pathogens. Its effect helps stop the spread and development of infections in the beds. The drug belongs to hazard class 2 , so it must be used carefully, following the instructions for use.
• Acrobat. Today it is used against late blight more and more often. The product is especially popular in the southern regions of the country. Fungal bacteria have not yet been able to acquire resistance to this product.

Effective remedies for late blight on tomatoes

• If the plants are severely damaged, spraying the tomatoes with a solution of potassium chloride can help. This method has long been successfully used by the famous gardener Kizima Galina Aleksandrovna .

To prepare the solution, you need to dilute 200 ml (1 bottle) of a 10% preparation in 2 liters of water. Both the fruit and the stalk should be sprayed

• tobacco block is also effective . This method is only suitable for greenhouses (see video above) .

Consento

Another German drug that has a dual effect - it suppresses the vital activity of fungi and eliminates stress in plants. Recommended for treating plants against diseases, as well as in unfavorable weather conditions.

In addition to onions, potatoes and tomatoes, the product can be sprayed on sunflowers. Treatment is acceptable at any stage of plant development. Other advantages:

• effectiveness even in advanced cases;
• use in bad weather;
• growth stimulation;
• rapid achievement of high concentrations in tissues;
• suppression of the vital activity of spores.

The product is available in the form of a suspension, so it dissolves easily and completely in water. Effective at temperatures up to and including 55 °C, few fungicides have the same quality.

There is only one drawback: cost. For a liter canister you will have to pay about 1,500 rubles.

Cuproxat

The product has a wide range of applications, suitable for fruit trees, berry fields, zucchini, tomatoes, potatoes. Detrimental to most pathogens of crops, including late blight, powdery mildew, scab, mildew, cercospora and others.

The drug creates a thin film on the surface of the leaf, which does not prevent the penetration of air, but does not allow fungal spores to catch on, so the product is primarily preventive.

Positive aspects of the drug:

• acts very quickly, within a few seconds;
• protects for a long time, until the end of the growing season;
• harmless to pollinating insects;
• has no pungent odor;
• moisture resistant.

The drug is safe for the environment, does not destroy soil microflora, and does not deplete the soil. The danger to humans is also low. Effective in any weather, only at temperatures above 35 °C the degree of its effect decreases.

The drug has a third class of toxicity and can be dangerous for fish. Not recommended for use near open water.

How to treat tomatoes against late blight: effective preparations

If there are obvious signs of damage to tomatoes, pick off diseased leaves and use early fruit harvesting. At the same time, they are immersed in water at a temperature of 60 ° C for 2 minutes, dried and placed for ripening in a bright room at a temperature of 25 ° C.

A very effective way to combat tomato late blight is to treat plants with fungicides. Preventive spraying of seedlings and plants is carried out 15-20 days after planting with 0.7% Bordeaux mixture or 0.1% copper sulfate before hardening. Subsequent spraying is carried out depending on the weather forecast with 1% Bordeaux mixture. The last time is 8 days before harvest. When using such preparations for late blight of tomatoes as copper oxychloride, Acrobat, Antrakol, Valis, Cabrio Top, Ditan and Junker, spraying is stopped 20 days before harvest; Tattu, Ridomila, Kuprosila - in 14 days, Thanos - in 7 days, Quadris - in 5 days. Spraying should be fine. The leaves are processed not only from above, but also from below.

To treat seedlings, we recommend a fungicide that penetrates the plant tissue - Previkur 607 SP. Some gardeners use it together with Ecolist. To reduce the dose and increase the effectiveness of fungicides, humic preparations are added to them.

The use of only systemic fungicidal agents against late blight of tomatoes, which penetrate the plant tissue, leads to the adaptation of the fungus to them, therefore it is recommended to alternate treatments with systemic and contact preparations, as well as herbal remedies. Moreover, treatment begins, as a rule, with contact preparations. These include: Bordeaux mixture, copper oxychloride, Kuprosil. Contact copper-containing drugs are also not harmless. Copper sulfate is poison.

In their arsenal of means to combat late blight, many gardeners use Immunocytophyte, which increases the resistance of plants to adverse factors, including diseases.

Use biological products Planriz, Trichodermin, Pentafag S, etc. to prevent and combat late blight.

Thanos

The final drug on our list, designed specifically to combat various rots, as well as late blight. It has two main active ingredients, one for preventive purposes, the other for active control of already multiplying fungi.

Thanos resists moisture very well and is not washed off by rain or heavy watering. Spores, scattering over a previously treated surface, die instantly. There is also a systemic effect, thanks to which the active substance reaches places that are difficult to reach, including roots.

The drug acts for a long time if the instructions for use are followed. The high cost can be a deterrent - up to 2,500 rubles for a 400 ml package.

The rating does not pretend to be the ultimate truth and is not advertising. All drugs are selected taking into account safety for human health, range of use, and duration of action. The products can be used to treat and prevent fungal infections in most gardening plants, fruits, flowers and ornamental crops.