Copper sulfate Poland, Kyiv region.

Copper sulfate (copper sulfate, copper sulfate) - blue crystals, containing 24% copper. Means of contact action. It does not accumulate in plant tissues, so its use does not have a negative effect on the fruits of crops.
Copper sulfate of group A 1st grade.

Application:

- for spraying fruit, berry, decorative trees and shrubs in order to isolate the areas of the bark from the negative effects of the environment;

– for feeding plants — a source of copper and sulfur (on peatlands, sandstones). feed the plants with copper sulfate 3-4 times per season, spraying them with a working solution at the rate of 1 teaspoon of the substance per bucket of water.

- in construction for etching wooden and reinforced concrete structures made of wood, brick, concrete, etc. (100 g/1 liter of water).

- as a means for hygienic and aesthetic treatment of surfaces.

Preparation of the solution:

3-5% solutions are considered caustic. They are used to decontaminate the soil and eliminate mold. This is a fairly concentrated mixture, so the land treated with it can be used no earlier than a year later. For production, dissolve 300-500 g of copper sulfate in 10 liters of water.
0.5-1% solutions are considered therapeutic and preventive. They are used to fight fungal diseases, pests and to treat cuts on twigs and tree bark. To prepare such a solution, 50-100 g of copper sulfate crystals are dissolved in 10 liters of water.
0.02-0.03% solution is the weakest concentration used as fertilizer and top dressing for various garden crops. To obtain such a concentration, you need to dissolve only 2-3 grams of copper sulfate crystals in 10 liters of water.(//tractor-service.com)
Spending rate:

Apple tree, pear, quince, cherry — 100g/10l of water, use for budding from fungal diseases.

Apricot, peach, plum, cherry, cherry,currant — 50-200g/10l of water, use for budding from fungal diseases diseases.

Disinfection of wounds of fruit trees — 100-200 g/10 l of water, use as needed.

Soil disinfection — 5 g/10 l of water, apply before or after the season.

Application features:

Any solutions of copper sulfate must be prepared immediately before use, and not in advance, because copper sulfate can crystallize in cold water.

Most often, copper sulfate is used in the garden in the spring.

Garden trees and bushes with a weak immune system are recommended to be treated with copper sulfate 2 times a year - in spring and autumn. Processing is carried out only at plus temperature in the period when there are no leaves.
Thanks to autumn processing, you can not only increase the resistance of trees to frost and diseases, but also get rid of pests that hide in their bark for the winter. But they spray not only the tree or shrub, but also the ground near its base (root zone).