Boric acid for strawberries

Boric acid for strawberries

Strawberries are one of those crops that react sharply to the lack of the necessary boron in the soil. One way to increase the content of this valuable element is to feed with boric acid, which, in addition, also has properties that help fight diseases and pests. Therefore, it is worth considering in which cases and how exactly boric acid is used for strawberries.

Signs of deficiency and excess of boron

The role of boron in the metabolism of strawberry bushes is that without a sufficient amount of it, many nitrogenous compounds necessary for the normal development of the plant cease to be synthesized correctly. When a crop receives enough boron, the amount of chlorophyll in its foliage also increases, which, in turn, increases the growth rate of the bush and increases its yield.

The lack of this element in the soil gradually manifests itself in the form of deformation and subsequent death of strawberry leaves. If measures are not taken in time, boron starvation can even lead to the death of shoot tissues. And when the plant does not receive enough of this element during flowering, the ovary of berries is formed from flowers extremely reluctantly, which significantly reduces the expected yield. Well, in cases where a boron deficiency overtakes a plant during fruiting, it can be seen by the following signs:

  • berries become smaller than usual;
  • even the set fruits ripen unevenly;
  • the size of a fully ripe berry is much smaller than the average for the variety;
  • the taste in ripe fruits is a lack of sugar and a high water content.

Thus, the violation of the boron balance of the soil primarily affects the quality and quantity of the crop. Therefore, at the first sign of a lack of boron, it is important to make a top dressing that replenishes its reserves in the soil. One of the simplest and most effective means for such treatment is boric acid, which you can buy without a prescription at almost any pharmacy.

Separately, it is worth considering cases when the soil, on the contrary, contains an increased amount of boron. This situation has the following effect on strawberries:

  • the development of the lashes and roots of the bush is noticeably slower than expected for the variety;
  • characteristic lesions appear on the lower edges of the leaves, in fact, they are chemical burns;
  • along with damage, there is a "twisting" of the leaves, as a result of which they take a spiral or domed shape;
  • in the advanced stage, part of the leaf tissue dies off, which begins with yellowing of the edges.

Most often, this situation happens with the wrong dosage of fertilizers. In such cases, top dressing with boron-containing compounds is immediately stopped, and the soil is regularly washed with clean water.

It is necessary to flush until the complete disappearance of cases of the appearance of new symptoms on strawberry leaves. In the most advanced cases, you will either have to transplant the bushes into unspoiled soil, or sacrifice them.

Benefit and harm

The use of boric acid in cases of an established lack of boron in the soil makes it possible to eliminate the negative effects of such a situation. The ovary after such top dressing is formed much more actively, the flowers stop crumbling even with noticeable gusts of wind, the deformation and necrosis of the leaves slow down, the leaves become more saturated green (which indicates an increase in the chlorophyll content).

If you feed strawberry bushes with boric acid during their fruiting at the first manifestations of boron starvation, then the size of the fruits increases, the excess moisture content in them noticeably decreases, and the taste becomes much sweeter and more pleasant. The total yield of a garden strawberry plantation treated with this simple tool can increase up to 20%. Restoring the balance of boron in the soil allows plants to tolerate adverse weather much better - heat, drought, frost and a sharp change in temperature.

Boric acid affects not only the boron content in the earth. It can also be used to control various pests, among which it is especially effective for eliminating ants. At the same time, the destruction of ants, in turn, reduces the number of aphids. These insects are in a symbiotic relationship - ants protect aphids from natural enemies, as they release substances edible for ants on the surface of their shell.

And if you water strawberry bushes with a weak aqueous solution of boric acid, you can also get rid of pests that live in the soil - various worms and insect larvae.

Finally, boric acid has a noticeable disinfectant and fungicidal effect. This allows us to recommend it for the fight against strawberry diseases of both bacterial and fungal nature.This remedy is especially effective against various rots (especially dry and brown), which often affect bushes growing in conditions of high humidity.

Another great advantage of boric acid over more complex boron-containing compounds is its low effect on the human body. A few drops of this substance on the skin are unlikely to cause any unpleasant consequences. However, it is still better to observe safety measures when handling it.

With all these advantages, this substance also has disadvantages. The most important of them is the likelihood of an excess of boron in the soil after using this remedy in the wrong dosage. This is important to consider in cases where the indication for the use of this remedy is an invasion of pests or plant diseases, and not a lack of boron.

Another potential danger of boric acid is that if the dosage is significantly exceeded, it is not completely absorbed by the plant and begins to accumulate in its fruits. The use of such strawberries can be harmful to human health.

Dosage and application rules

To avoid the occurrence of an excess of boron or the accumulation of boric acid in fruits, it is important to correctly select the proportions of the solutions used. It should be borne in mind that feeding and processing from pests is carried out in different ways. At the same time, boric acid itself is available in two forms - powder and alcohol solution. In the recipes below, the dosage will be given for the powder form.

The required amount of alcohol solution can be calculated using the concentration indicated on the package. For example, 100 grams of a 1% solution of boric acid contains 1 gram of the active ingredient.Dilution of boric acid should be carried out exclusively with warm, not cold water. Of course, the water should not be tap water, but purified.

For fertilizer

Strawberries can be fertilized with boric acid solutions by two main methods - spraying and watering. In this case, it is preferable to introduce the solution into the soil - this will avoid damage to the bushes. In addition, it is strictly forbidden to spray strawberries with boric acid when fruiting has already begun.

The most popular root dressing recipe, which is usually used in the spring:

  • 5 liters of water;
  • 1 g of boric acid.

Sometimes 1 g of potassium permanganate is also added to this mixture.

A more complex spring composition that allows you to replenish not only the reserves of boron, but also other substances useful for strawberries, including manganese:

  • 5 liters of water;
  • 1 g of boric acid;
  • 2 g of potassium permanganate;
  • 1/2 cup ash.

Ash is included in the recipe because it contains almost the entire range of elements necessary for strawberries - boron, potassium, phosphorus, iron, magnesium and many others. And potassium permanganate helps to introduce manganese into the soil, which is necessary for strawberries.

During the beginning of fruiting, you can treat the soil around the bushes with the following composition:

  • 5 liters of water;
  • 2 g of boric acid;
  • 2 g of potassium permanganate;
  • 50 g of ash;
  • 10 g of urea.

In both recipes containing ash, it is not necessary to include it in the composition of the solution - it is enough to sprinkle it on the ground around the bushes.

You can add iodine to the composition of the solution, because its lack reduces productivity, delays the onset of fruit formation, and contributes to the development of gray rot and powdery mildew. In this case, the recipe will look like this:

  • 5 liters of water;
  • 1 g of boric acid;
  • 15 drops of iodine;
  • 1 tablespoon of ash.

A good effect is given by a combination of boric acid and superphosphate fertilizers, which is used exclusively during the formation of the ovary. His recipe:

  • 5 liters of water;
  • 1 g of boric acid;
  • 5 g superphosphate.

The dosage of all these recipes when applied to the soil should be from 200 to 250 ml (about a glass) per 1 strawberry bush.

Top dressing by spraying is carried out before flowering, the composition is prepared in the following proportions:

  • 10 liters of water;
  • 5 g of boric acid.

For pest control

To get rid of pests, it is enough to spray strawberries with a solution of boric acid. Processing is carried out mainly foliar, using a sprayer. In this case, it is better to use the same solution as for top dressing. Even those insects that do not die immediately will avoid bushes treated with such a solution for a long time to come.

But to fight ants, it is most effective to make sweet baits containing boric acid. The simplest and most effective recipe is to dilute 5 grams of the substance in a glass of warm water and add 2 tablespoons of sugar or honey to it. After that, the composition is diluted in another half liter of cold water. You can pour this product into an anthill, pour it around the bushes, or place small containers with the composition around the beds with strawberries.

There is also a recipe with jam, the proportions in it are 10 g of boric acid and 1 tablespoon of jam per glass of warm water.

Finally, it is used against ants and meat bait in the form of balls molded from 4 tablespoons of any minced meat and 10 g of the product.

Time and terms of processing

Since boron deficiency affects mainly the formation of the ovary, the best time to start treatments is spring.It is important to remember that flowering strawberries are fed exclusively by watering, while spraying is best applied before the start of the flowering season. At the same time, any spring top dressing of strawberries with boric acid is carried out only once, so you should carefully consider the choice of composition and time of application of the drug.

The second time you can feed strawberries with this substance in early autumn. The third and last treatment of the year is carried out when the bed is prepared for wintering.

Basic errors and precautions for operation

Gardening is a rather complicated science, so any treatment with boric acid must be carried out in compliance with a number of rules. The most important thing is to observe the following safety rules:

  • store the substance in a cool (but not less than 0 ° C), dark place, protected from the risk of ignition;
  • dilute boric acid only in a room with good ventilation;
  • any manipulations with the solution, including watering, should be carried out only with gloves;
  • when spraying, goggles and a respirator are needed.

In no case should you use undiluted powder or an alcoholic solution of boric acid - the powder scattered on the soil surface will be absorbed into the soil very slowly, and the ingress of a concentrated powder or solution on the plant can cause chemical damage.

It is impossible to make boric acid not only in soils that already contain an excess of boron, but in general in any soil with an excess of acidity. Also, do not perform any treatment with this substance during heavy rains.

If the treatment did not immediately give a noticeable effect, do not rush to carry it out again, so you can easily achieve an excess of boron.

A typical mistake in the fight against ants is the excess of the concentration of the substance for a greater "lethal effect".It is important to remember that the main way to get rid of ants is to destroy the queen. But even pouring a solution of boric acid into an anthill may not solve this problem - the mother liquor is placed so that it is flooded last. That is why baits are used - working insects must bring them into the anthill and treat the uterus with poison.

The fact that boric acid is the main secret of the strawberry crop, see the next video.

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The information is provided for reference purposes. Do not self-medicate. For health issues, always consult a specialist.

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