Spraying pepper with boric acid

Spraying pepper with boric acid is a great way to increase productivity and strengthen plants.

Spraying pepper with boric acid

Why pepper is sprayed

Poor fruiting, curled leaves, susceptibility to frequent diseases and damage to pests are signs of a lack of boron in the plant. Boron is one of the basic trace elements and is necessary for the plant body throughout the growing season.

Boric acid or orthoboric (H3BO3) is a mixture of boron, oxygen and hydrogen. Such a compound is used to improve:

  • fruiting - flowering and the formation of new ovaries on pepper are activated;
  • taste - the fruit becomes more juicy, large, new macroelements are formed;
  • resistance to various infections and pests.

Root system strengthening

Boric acid helps in strengthening the root system. Used for antiseptic treatment of plants - prevents the formation and development of rot. Boron increases the level of sugar in the fetus. In addition, it promotes the formation of new shoots.


Spraying with such a chemical mixture is suitable for seedlings that are grown on a windowsill or balcony. It is weaker than the one that grows in open ground, so it must be intensely fed.

Boric acid can be used for peppers that have fallen leaves. In this case, do not use the chemical mixture in its pure form, but mix with urea and mullein.

It can not only spray the leaves, but also fertilize the soil. For seed treatment, they are soaked in a solution. So they are less at risk of contracting late blight. Lures from such a compound protect plants from the invasion of ants.

Advantages and disadvantages of spraying

A mixture of boron, oxygen and hydrogen can be used in several ways. But agronomists note that only spraying leads to the best results.

With this method, it is possible to adjust the concentration of the mixture. Due to this possibility, the risk of overdose and damage to seedlings is reduced. It is necessary to spray in the following proportion: per 10 square meters. m. 1 liter is needed. solution. Due to spraying, a large area of ​​plantations is processed.

The chemical mixture has several disadvantages. This is a weak chemical compound, but careless and excessive use can lead to burns on plants. To avoid this, it is best to use a spray gun when processing. So the leaves are covered with a solution evenly.

With abundant application of H3BO3, the leaves begin to gradually turn yellow, die, and then fall off. The sheet takes the form of a dome, the end is wrapped inward.

Excess boron harms not only seedlings, but also the human body. Getting into it through the fruits, it takes a very long time to get out.

When to spray pepper

Spraying will accelerate ripening

You can start spraying the plant with a chemical mixture because of the appearance of the seedlings. Boron deficiency is manifested in the fall of the ovary and flowers, deformed and small leaves. Also stops the development of the bush.

If the main task is to increase the fruiting and top dressing of the vegetable, then they spray 3 times during the growing season:

  • during the ripening period of the bud;
  • when the first flowers appear;
  • during the ripening of the crop.

During the ripening period of buds, treatment of lettuce with boric acid will increase their number and also accelerate their development. The second time, when the first flowers appear, spraying with pepper boric acid improves the ovary of the plant and prevents the flowers from falling.

When fruits ripen, Н3ВО3 will improve the taste of the vegetable. Another advantage is to prevent the formation of rot.

It is not necessary to feed the vegetable on schedule. It is necessary to look at its appearance and development. And only after that make any fertilizer.

For spraying, it is better to choose the evening time or a cloudy day without precipitation. Processing must be done before the sun, on the leaves of the plant should not be moisture.

How to spray

Boron compounds are most found in chernozems and chestnut soils. But in clay and sand - the minimum amount. Effectively feed these soils with the necessary trace element. Topping up for salad pepper with boric acid can be root and extra root.

Foliar top dressing

To prepare a boron mixture you will need:

  • sprayer;
  • container for preparing the mixture;
  • H3BO3;
  • water;
  • protective equipment (gloves and respirator).

The solution is very easy to prepare. 1 liter hot water (not boiling water) is bred 1 g. chemical substance. Processing H3BO3 begins only after the mixture has completely cooled. The total amount of solution is prepared from the calculation of seedlings and depending on the purpose that is being pursued.

It is necessary to prepare the mixture in the correct and exact proportions.

Precautionary measures

Spraying is necessary in protective equipment, and it is not recommended to remove it before the end of the process. After carrying out the work, you need to change clothes, wash your hands and face with laundry soap.

Keep such a solution away from children and pets. Best in a dark, cool place. It should be protected from food, medicine and drinking water.

When preparing the solution, it is necessary to ensure that all boron granules dissolve. It is necessary to spray so that all the leaves of the seedling are evenly coated.

Root dressing

You need to pour the solution strictly under the root

In addition to foliar top dressing, they also use root. Pour the root of the pepper with boric acid using a watering can, low pressure and exactly under the root. In this case, the solution should not enter the plant. To apply such fertilizers is necessary on the prepared soil. First, it must be watered with plain water, and only then make boron. If this is done without watering the soil, then the roots of the plant will get burns. You need to do root bait when a deficiency of H3BO3 or severe starvation in the plant is visible.

The chemical compound does not pass from the old vegetable to the young one, therefore it is necessary to spray it throughout the growing season. So the content of trace elements in the body of the plant will be constant.

Pest control with boron solution

Boron can be used in different cases. Summer residents in the solution soak the seeds for disinfection. For greater efficiency add manganese and ash:

  • a liter can of ash is diluted in 1 liter of water;
  • 2 cups of onion husks insist in 1 cup of water;
  • two solutions are mixed;
  • 2 g of manganese is added;
  • 0.2-0.4 g of H3BO3 is dissolved;
  • 1 teaspoon with a slide of soda is added.

Soaking planting material in such a solution, pathogenic microorganisms are destroyed.

From diseases

Spraying with boron compounds will help prevent fungal diseases. Phytoplasmosis, verticillosis, late blight damage not only the plant, but also the fruits. To cure the bush, you must first treat it with a solution of manganese, then boric (1 teaspoon per 10 l). After 7 days, repeat everything. Then spray with iodine solution.

It is necessary to spray not only damaged seedlings, but also the equipment with which the soil and bushes of the vegetable are treated.

From pests

In the fight against insect pests, 1 tbsp. Is added to the spray solution. a spoon of laundry soap and 1 tbsp. wood ash. To combat ants, a mixture of 5 g of powder is prepared for half a glass of hot water. There are also added 2 tbsp. tablespoons of sugar and 1 teaspoon of honey. The prepared mixture is poured into low containers and installed near ant houses. To prevent rain from falling onto the bait, you can cover it with some kind of material (plastic, iron).

To combat ants, you can make balls of 2 egg yolks and half a teaspoon of boron. They are laid out on trails and habitats.


Boric acid for sweet and bitter peppers normalizes the metabolic process in the body of the plant. When spraying pepper with a boron solution, fruiting improves, the risk of contracting various infections decreases.

Boric acid when watering pepper can be harmful. In large quantities, it damages leaves and burns form. Once in the human body, it is hard excreted by the kidneys.


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