Inexperienced vegetable growers believe that the fight against late blight of potatoes should begin only with the appearance of early signs of the disease. Usually, by this moment the infection has already reigned in the beds and attempts to cope with it are equivalent to trying to stop the train at full speed.
In order not to be in such a sad situation, pay attention to the seasonal preventative treatments of potato plantings. To do this, it is best to use one or more folk remedies.
Recipe number 1. Garlic
Grind 100 grams of tops, pulp, and cloves of garlic and pour in 10 liters of water. The mixture is infused for two days, then filtered, add 1 teaspoon of potassium permanganate without top and spray the potatoes. Treatments are done weekly in July and August.
Recipe number 2. Sour milk
Any fermented milk product (old kefir, fermented baked milk, yogurt, or whey) is diluted with water in a ratio of 1:10 and left to infuse for 1-2 hours. Potato plantings are also sprayed with such a composition every week (try alternating with garlic sprinkles).
Lactic acid bacteria form a thin film on potato leaves and stems, which becomes an insurmountable barrier to fungal spores.
Recipe number 3. Copper sulfate
The mixture prepared according to this recipe can not be fully attributed to alternative drugs, therefore it is used only when the first signs of late blight on potatoes appear.
To prepare, take one teaspoon of copper sulfate, boric acid, potassium permanganate, and dissolve each of the substances separately in three to four liters of hot water. Next, the solutions are combined, filtered, and seasoned in a garden sprayer. Processing is carried out twice a season – in the last decade of July and in August with an interval of 7-10 days. Such a solution cannot be stored!
Recipe number 4. Iodine
Iodine in the amount of 15-20 drops is dissolved in 10 liters of water and immediately proceeds to process. During the summer months, it is permissible to carry out up to three sprayings of potato bushes. Iodine goes well with fermented milk products, so it is often added to a milk solution (see recipe number 2).
Recipe number 5. Tinder
Lightly dried fungus-tinder fungus (100-150 grams) is chopped with a knife and soaked for a day in a liter of boiling water. Next, the infusion is drained and diluted with 9 liters of water at a normal temperature. Biofungicide is applied to potato greens at least every 7-10 days.