How To Spray Tomatoes From Late Blight? Folk Remedies, Fungicides And Biologicals. Photo

2023 Author: Ava Durham | [email protected]. Last modified: 2023-11-27 07:13

Not everyone who planted them can enjoy their own harvest of long-awaited tomatoes. At every stage of growing these southern vegetables, their own troubles lie in wait. But even the most insidious pests cannot destroy the entire tomato crop as quickly as late blight. In favorable conditions, it is literally in a couple of days capable of causing damage to all plantings both in the greenhouse and in the garden. It is believed that fruits from infected bushes, even without traces of phytophthora, are not suitable for storage and processing. When this disease appears on tomatoes, you need to act immediately. How to spray tomatoes from late blight, I will tell you in this article.

Content:

• A quick reaction to late blight is the key to success in combating it
• Traditional methods of dealing with late blight on tomatoes
• Fungicides against late blight
• What biological products to spray tomatoes from late blight?
• Features of processing tomatoes from late blight

A quick reaction to late blight is the key to success in combating it

When high humidity reigns in the middle of summer, and temperatures during the day and night contrast sharply, ideal conditions arise for the spread of the main enemy of tomatoes - late blight. It can destroy up to half of the crop, and if you delay with the start of countering its spread - and almost the entire crop of tomatoes on the site.

But you should not panic if you find phytophthora on tomato plants. It is difficult to stop this dangerous, rapidly spreading disease of Solanaceae and some other horticultural crops, but it is possible. And the sooner you use effective methods against phytophthora, the less losses for the crop will solve this problem.

All methods of dealing with late blight on tomatoes can be divided into three categories:

• folk remedies.
• chemical agents.
• biological products.

When choosing a method to combat late blight, it is worth giving preference to systemic solutions - they involve the treatment of diseased tomatoes, and protection for healthy plants, and the prevention of late blight in the future.

Traditional methods of dealing with late blight on tomatoes

The use of natural or improvised means and infusions to combat dangerous garden diseases is quite effective. Phytophthora, despite its superfast reproduction and aggressiveness, is no exception. Solutions and infusions with regular use and the beginning of the fight in the early stages are softer, but not always worse than pesticides. Their safety for crops and the garden's ecosystem has been proven over decades of practice.

What folk remedies to spray tomatoes from late blight? For instance:

• infusion of garlic (1.5 cups of chopped heads with stems are poured with 10 liters of water, 2 g of potassium permanganate is added and insisted for a day, and then 100 to 200 ml is used, depending on the height of the bush for each plant);
• infusion of wood ash (5 liters of ash per 10 liters of water insist for 3 days, filter and dilute with water in a ratio of 1 to 3);
• yeast solution (100 g of pressed yeast per 10 l of water, but such spraying is effective only when alternating with another treatment);
• soda solution (2 tablespoons soda per 10 liters of water with the addition of liquid or laundry soap);
• brewing tinder fungus (100 g of chopped dried mushrooms per 1 liter of water);
• milk spraying (1 liter of milk is mixed with 20 drops of iodine and diluted in 10 liters of water);
• a solution of fermented milk products (yogurt or kefir diluted in water in a ratio of 1 to 10);
• vinegar solution (100 ml of table vinegar per 10 liters of water), is also effective only when alternating with other means;
• saline solution (1 glass of sea or table salt per 10 liters of water) is effective only after removing all damaged leaves.

Folk remedies carry out treatments immediately after detection of infection, repeating at intervals of 7 to 10 days. Spraying should be done carefully, covering the entire plant evenly. To increase efficiency, you can add a little potassium permanganate (2 g per 10 l), iodine (15-20 drops per 10 l), brilliant green (40 drops per 10 l of water), laundry soap (30-35 g per 10 l) to these folk remedies), hydrogen peroxide (2 tablespoons per 1 liter of water).

One of the simplest methods of preventing and stopping the spread of late blight is mulching. It is useful not only for soil and maintaining its texture. Mulching reduces humidity, eliminates conditions favorable for phytophthora and promotes the active development of microorganisms that effectively destroy phytophthora spores.

This does not mean that mulched tomatoes are not affected by late blight. They get sick, but easier. If the tomatoes have not been mulched before, it would be good, after spraying with folk remedies, to spread the mulch under them.

Also, gardeners have come up with many and very original, but effective methods of dealing with late blight:

1. Use of copper wire as a barrier for phytophthora (with a piece of calcined wire, a mature, strong trunk of adult plants is pierced at a height of 4-5 cm from the ground, bending the ends for safety).
2. "Whitewashing" with a solution of toothpaste (1 tube for 10 liters of water).
3. Steam treatment or shower with hot water (at least 60 degrees).

Fungicides against late blight

The most effective, fastest and easiest way to combat late blight is to use fungicides. To fight this dangerous disease, both long-known and simple types of antifungal drugs and novelties among pesticides help. But usually any remedy is based on at least one copper-containing component.

The classic means of combating late blight include:

• Bordeaux liquid (used as a 1% solution);
• copper sulfate (1 tbsp per 10 liters of water);
• boric acid (1 tablespoon per 10 liters of water);
• furacilin (1 tablet per 1 liter of water);
• calcium chloride (in a ratio of 1 part of the drug to 100 parts of water, that is, 1% solution).

It is better to start spraying on tomatoes affected by late blight as soon as possible. Late blight adapts to these remedies easily, it is better to alternate them and change the strategy of the fight in the next season.

Systemic remedies can be ranked among modern effective drugs: Quadris, Thanos, Metronidozol, Revus, Consento, Abiga Peak, Artserid, Tattu, Ridomil Gold, Kuproksat, "Ditan M-45", "Oksikhom", "Profit-Gold", "Acrobat MC", "Previkur Energy", "Hom", "Kurzat R", "Infinito".

Usually, for late blight-affected tomatoes, you need to carry out 3 treatments with fungicides, but in neglected cases and with a large volume of plantings in greenhouses and on beds, the number of treatments can increase to 7 per season. In the spraying schedule, it should be borne in mind that the fruits can be removed no earlier than 2 - 3 weeks after treatment with fungicides.

In order for fungicides to cope with their task, you need to carefully study and follow the instructions exactly. The dosage, frequency of treatments and even the timing of spraying, observed according to the manufacturer's recommendations, will allow you to quickly cope with late blight on tomatoes.

What biological products to spray tomatoes from late blight?

Microbiological preparations with fungicidal properties are ecological means of fighting late blight. Biologics create a long-term "shield", act not only locally, but also systemically. They are created on the basis of the natural enemies of phytophthora - bacteria and fungi, which prevent and stop late blight and many other diseases by suppressing pathogens and pathogens. Beneficial microorganisms enhance the immunity of plants, heal the soil, activate its microflora and restore the biobalance.

Modern effective biological preparations-fungicides against phytophthora include "Fitosporin-M", "Fitolavin", "Trichodermin", "Trichoplant", "Gamair", "Alirin-B", "Baikal EM-1", Trichoderma Veride 471 …

Biofungicides are not able to compete in speed of action with pesticides, one should not expect an immediate immediate effect from the use of em-preparations. But absolute safety, positive impact on the soil, long-term effect compensates for the delay.

Biological products not only destroy phytophthora spores, but also provide reliable long-term protection, increase yields and do not affect fruits (tomatoes can be used regardless of treatments).

Features of processing tomatoes from late blight

Whichever method of struggle is chosen, it is worth remembering that late blight quickly "adapts" to the funds and they need to be changed regularly. The exception is innovative systemic fungicides and non-addictive biological products.

Even with simple folk remedies and infusions, tomatoes are best processed in the early morning or evening, choosing clear, windless days. Any methods require the use of personal protective equipment, the abandonment of metal containers and tools for preparing solutions.

Means that will help save tomatoes from late blight can be used not only for spraying already diseased bushes. Infusions and decoctions are used both on affected plants and to prevent phytophthora after planting tomatoes in the soil. But microbiological and chemical agents can be used on adult bushes, and for seedlings, seeds and soil.

Late blight most often gets on tomatoes from potatoes. When processing tomato bushes, it is worth preparing a solution with a stock and sprinkling potato plantings as well, which can become a haven for spores and a source of disease next time.