The fight against late blight on tomatoes is a rather complicated process, but if you do not process the plantings on time, you can lose the entire crop.
For spraying, gardeners often use industrial chemicals, but they tend to get into the fruit in a small concentration. Safe in this case are considered compounds prepared according to folk recipes. They do not affect the taste and quality characteristics of tomatoes. It is also completely environmentally friendly.
Phytophthora is a fungal disease, and mycosis is sensitive to garlic. This plant kills fungal spores. In order to prevent the development of the disease, the processing of tomatoes must be carried out regularly.
The first spraying is carried out before the formation of the ovaries. The second is carried out after 2 weeks. Repeat the procedure every 2-3 weeks to get the desired result.
To prepare the solution, garlic cloves are crushed, pour them with 10 liters of standing water. For this amount of liquid, it is enough to take 200-300 g of slices. They can be replaced with chopped arrows. The mixture is infused for 20-22 hours. Then 2 g of potassium permanganate is added to it, the mixture is stirred until a uniform pinkish tint is obtained. Immediately after this, you can process the beds.
The salt composition provides protection against the disease, forming a thin film on the surface of the bushes. But this method is a means of prevention and is not suitable for the treatment of advanced diseases.
Before processing the plants, you need to inspect and remove the damaged leaves. Only then can plantations be sprayed. To prepare the composition for 10 liters of rainwater, 200 g of table salt is used.
Kefir is also used as a preventive measure. The first procedure is carried out in the second week after planting tomatoes. Then the manipulation is repeated every 7-10 days.
Prepare the solution in advance, because it should ferment for 2 days. For 5 l of water, it is enough to take 500 ml of kefir.
Milk iodide spraying
Iodine is an antimicrobial effect, therefore, it is considered an effective drug for late blight. In addition to combating mycosis, this microelement accelerates the ripening of fruits by 1-2 weeks.
To prepare the composition, 500 ml of skim milk and 5-10 drops of an iodine alcohol solution are diluted in 5 l of distilled water.
Then plantings are sprayed using a spray gun.
Ash treatment is carried out three times per season. For the first time, the beds are sprayed as soon as the seedlings get stronger. The second procedure occurs during the flowering period, and the third is carried out after the formation of the ovaries.
200-300 ml of ash are taken in 5 l of water, thoroughly stirred and left for 3 days. Then the composition is filtered and add another 10 l of liquid. After that, processing is carried out.
100 g of dried mushroom is ground in a blender and pour 1 liter of boiling water. When the solution cools, it is filtered and used as intended. Corpuscular spraying is recommended every 1-2 weeks.
This method is patented by German scientists. The copper wire is calcined or cleaned with sandpaper. Then cut into small pieces 3-4 cm long. When the stalk of tomatoes grows stronger, they pierce it at a distance of 10 cm from the surface of the soil and bend the ends of the wire down. It is forbidden to wrap the base of the bush with copper.
Microdoses of the mineral help make plants more resistant to disease. In tomatoes, respiratory and oxidative processes are activated.