What is sprayed with copper sulfate

Soluble powder of blue-blue crystals, active ingredient: copper sulfate, 980 g/kg. It is used against fungal diseases of fruit trees and berries, as well as vegetables and flowers. The period of protective action is about 30 days.

Mechanism of action: copper ions react with lipoprotein and enzyme complexes of a fungal or bacterial cell, causing irreversible changes in the protoplasm, causing nonspecific denaturation of proteins.

The use of copper sulfate

This fungicide is used in the garden and at home to protect plants from a number of diseases:

  • alternariosis
  • ascochytosis
  • moniliosis
  • scab
  • mildew grapes
  • spotting
  • white spotting (septoria)
  • downy mildew
  • rust
  • phytophthora, etc.

In addition, when spraying against diseases, copper sulfate is a simultaneous foliar top dressing. Copper deficiency, as a rule, manifests itself in plants growing on acidic sandy and peaty soils.

Other uses for copper sulphate:

  • as an antiseptic against mold and rot on wooden structures
  • for soil disinfection

If this fungicide was actively used in the spring and summer, then it is better not to use it before winter, so as not to oversaturate the soil with copper ions.

Consumption rates

As a rule, a 1% solution is used with a consumption rate of about 10 liters per 100 m2. To prepare the working fluid, dissolve 100 g of copper sulfate in 10 liters of water or 10 g per 1 liter of water.

General rules for breeding copper sulfate:

  • Apple, pear, quince: against scab, phyllosticosis and other blotches, moniliosis, drying out 100 g of the drug per 10 liters of water, the first spraying in early spring before bud break, at a consumption of 2-5 liters per tree. Can be repeated 2 weeks before harvesting apples and pears.
  • Apricot, peach, plum, sweet cherry, cherry: from clasterosporosis, coccomycosis and other spots, moniliosis, leaf curl, dilute 50-75 g per 10 liters of water, the first spraying in early spring before bud break, at a consumption of 2-3 liters per tree .
  • Gooseberries, currants: from anthracnose, septoria and other blotches, dilute 50-75 g per 10 liters of water, the first spraying in early spring before bud break, at a consumption of 1.5 liters for a medium-sized bush.
  • Spraying potato tubers against late blight before planting: 2 g of the drug per 10 liters of water. It is more convenient to fold the planting material into a vegetable net and dip it into the prepared solution.
  • Indoor flowers – watering from a complex of diseases – dilute a teaspoon (without a slide) into 2 liters of water to get a sky-blue solution, pour under the root or spray the leaves.

From spots on vegetables, for example, with ascochitosis of cucumbers, plants can be sprayed with a 0.5% solution of copper sulfate and urea: for 10 liters of water, 5 g of vitriol and 10 g of urea, repeat twice a week.

To disinfect open ground and in greenhouses from diseases a week before planting seedlings or sowing seeds, water the soil with a 3% solution of copper sulfate (30 grams per liter of water). Such treatment will also protect potatoes from phytophthora.

To treat the root system before planting, dilute 100 g of the drug in 10 liters of water, soak the root system (bulbs or tubers) for 3 minutes. Then remove from the solution and rinse thoroughly in running water. Bulbs or fleshy tuberous roots, then air dry before planting.

How to dilute copper sulfate

The required volume of powder, for example, 100 g of copper sulfate, diluted in a small amount of water (500-700 ml), poured into a plastic bucket and heated to a temperature of 40-50 degrees (better dissolution), add water while stirring to bring the volume of the working solution up to 10 l. Do not use metal utensils! Strain the prepared solution through a filter, for example, through nylon tights, before pouring it into the sprayer.

Processing with copper sulphate of tomatoes from phytophthora

Tomatoes are plants sensitive to errors in processing with copper-containing preparations. In order not to burn the leaves, but to defeat late blight, a very weak concentration is enough, only 0.2% solution. Prepare a copper-soap emulsion: grate 200 g of laundry soap and dilute in a small amount of hot water; separately in a glass jar, dilute 20 g of copper sulfate, use a wooden stick to stir, pour the fungicide into the soap solution in a thin stream, stirring constantly and bring the solution to 10 liters of water.

With this solution, you need to spray the tomatoes on the leaf, the scheme is as follows:

  • spray seedlings for the first time, a week after planting in a greenhouse or open ground
  • further, depending on the weather, if the summer is dry, there is little rain, then do not spray until the August cold snap, do preventive treatments with phytosporin, if the summer is damp and cool, treat every 10-12 days.

Spraying is carried out in calm weather, trying to moisten the reverse side of the leaves.

When can you eat fruits and vegetables after spraying with copper sulfate

Most vegetables can be eaten 14-15 days after spraying, with the exception of:

  • gourds (cucumbers, zucchini, pumpkins, watermelons, melons) – they can be sprayed 5 days before harvesting
  • tomatoes can be sprayed against late blight and other diseases 7-8 days before picking tomatoes

Important: rinse all fruits thoroughly with running water repeatedly – copper is not absorbed by the plant and does not penetrate into the fruits, it remains on top of the fruit shell and is dangerous only if the fruits are soft-skinned, such as peaches, or the fruits are cracked.

See also:   Agrofirm Vereya, Ramensky District

Fruits and berries that cannot be washed well before eating – these are raspberries, strawberries, apricots, peaches, grapes, some varieties of currants (with soft berries) – you can spray with copper preparations at least 1.5 months before the crop ripens: one treatment before flowering, and the second on the ovary.

Copper sulfate from root rot, black leg, fusarium

To save cucumbers, zucchini or pumpkins from root rot (symptoms: wilting of bushes in hot weather, yellowing of leaves, dying off of ovaries, stopping the growth of greens), you can prepare this solution: 1 teaspoon of copper sulfate, 1 teaspoon of zinc sulfate, 1 tbsp. . a spoonful of simple superphosphate per 10 liters of water. Pour cucumber bushes with a freshly prepared solution at the rate of 5 liters of liquid per 1 sq. m of land.

Watering from the black leg and Fusarium of vegetables and flowers: dilute 5 g of the drug in 10 liters of water.

How to process wooden structures with copper sulfate

Copper sulfate is an excellent antiseptic, it can process any wooden structures in a summer cottage – the walls of greenhouses and greenhouses, the walls and structures of cellars, sheds, arbors, wooden flooring, fences. It is better to apply the solution by spraying, small surfaces with a brush or sponge (work with gloves). Let dry and repeat the treatment two more times. The coating needs to be renewed after 3-4 months.

In some cases, for longer protection time, clay can be added to the solution to make a creamy mass, coat the supporting poles at the fence, the porch of a country house, or support beams in greenhouses with it.

You need to know that deeply ingrained mold can no longer be removed and destroyed with copper sulphate, it is better not to use such material, since the boards lose their strength, and mold from them can move to neighboring ones, in such cases it is worth using preservative indelible antiseptics.

Copper sulphate as a fertilizer

Copper sulfate is applied only on soils that are poor in this element, for example, chernozems contain copper in sufficient quantities, a little less, but not fundamentally on sod-podzolic and gray forest soils, but peat-bog and in some places sandy and sandy loam contain little copper, therefore once every 5-6 years in early spring or autumn, copper sulphate can be applied: consumption of 1 g per 1 sq.m.

For foliar feeding of vegetative plants with signs of copper deficiency (appears primarily on young leaves), the dosage is 1-2 g of copper sulfate per 10 liters of water.

Copper sulfate compatibility

The drug is incompatible in general solutions with organophosphate insecticides and other drugs that decompose in an alkaline environment.


Copper sulphate has a hazard class 3 for humans (may cause serious irritation of the mucous membrane upon contact with a preparation or solution) and a hazard class 3 for bees (the border protection zone for bees is 4-5 km). The drug has low toxicity for bees, however, it is better to isolate the bees for the period of crop treatment and for the next 5-20 hours. Not phytotoxic unless dosage is exceeded.

Security measures

Processing should be carried out using gloves and goggles, avoid smoking, drinking, eating while working. In case of contact with the skin or mucous membranes – rinse with plenty of water, if it enters the digestive tract, vomiting usually occurs immediately, you can not take any means, immediately call an ambulance.

In early spring , preventive treatment of fruit trees and shrubs from diseases and pests is carried out everywhere in gardens . Best time to spray:

  • end of March – April, before bud break, along bare branches.

Traditionally, trees are treated with solutions containing copper sulfate, iron sulfate, and a concentrated solution of urea. As an alternative, many new, modern drugs have also appeared. Using good old blue vitriol is cheap and effective. Let’s stop on it 

Application of 0.5% – 1% solution

For the treatment of trees in early spring, a solution of copper sulphate is used in a dosage:

  • 50 – 100 g per 10 liters of water.

Thus, a 0.5-1% solution is obtained. They are sprayed with trees and shrubs in the spring, along dormant buds. A 1% solution can also disinfect wounds on the bark, and a 0.5% solution spills the ground in early spring to prevent various kinds of rot (4 liters per 1 m2 is enough).

In early spring, a solution of copper sulfate can be sprayed:

  • pome crops: apple, pear, quince,
  • stone fruits: apricot, peach, plum, sweet cherry, cherry,
  • berry bushes: gooseberries and currants.

Table: Dosage of copper sulfate for treating trees in spring

A solution of copper sulphate is also used in summer, but in smaller dosages (2-5 g per 10 liters of water) for foliar top dressing at the first manifestations of signs of copper deficiency:

How to breed copper sulfate for processing trees?

So, the proportions are known. For early spring processing, we need a 1% solution (100 g of copper sulfate per 10 liters of water). It should be noted that copper sulfate crystals are poorly soluble in cold water. That is why it is recommended to breed copper sulfate in the following sequence:

  1. Pour the drug into a bucket (preferably plastic or enameled to avoid oxidation).
  2. Pour the powder with 500 ml of hot water (50 degrees).
  3. Stir so that the powder dissolves better, leave to stand for a while.
  4. Pour the remaining 9 liters with a “tail” into the bucket, mix again.

Since the drug is a chemical, safety measures must be observed when working with it: wear gloves, it is best to prepare the solution on the street, avoid contact with eyes, do not take it inside.

If you do not have scales at hand, the following information will be useful:

  • A matchbox contains 22 – 25 g of copper sulfate,
  • In a tablespoon: 16 g of copper sulfate,
  • In a teaspoon: 5 g of copper sulfate.

Spraying with copper-containing solutions

Currently, copper sulfate is rarely used alone. Solutions in combination with other components are considered much more effective:

  • Bordeaux liquid \u003d copper sulfate + fluffy slaked lime. In the spring, before bud break, a 3% solution is used: 300 g of copper sulfate and 225 g of slaked lime-fluff per 10 liters of water. It turns out a proportion of 1: 0.75, although very often they take 1: 1 (300 g of copper sulfate and 300 g of slaked lime-fluff per 10 liters of water). In summer, a 1% solution is used: 100 g of copper sulphate and 75-100 g of slaked lime per 10 liters of water. Bordeaux liquid acts softer than a pure solution of copper: lime neutralizes, softens vitriol. There are several important nuances in the preparation of Bordeaux liquid, which are better to read about in a separate article.
  • Urea + copper sulfate. Dosage: 700 g of urea per 10 liters of water + 50 g of copper sulfate. Treatment is carried out before bud break by spraying.
  • Copper-containing fungicide preparations: Hom, Oxyhom, Abiga-peak, according to the instructions on the package.
See also:   amplifying antenna

Iron vitriol for processing trees

In addition to copper, iron sulfate is also used. The goal is the same – to destroy pathogens of fungal diseases, mosses and lichens in early spring. Spraying of trees and shrubs is also carried out BEFORE the buds swell. But the frequency of treatments and dosages are different. Here we will give information from two sources, since the proportions for preparing the solution in them are different:

  1. Before the buds swell (around mid-April), the trees are sprayed with a 3% solution of ferrous sulfate: 300 g per 10-liter bucket of water.
  2. Before the kidneys swell, once every 4 years, treatment with a 5% solution of ferrous sulfate can be carried out: 500 g per 10-liter bucket of water.

As they say, in war all means are good , the main thing is not to miss the deadline. Remember: the end of March – April, before the buds swell, it’s time to treat with solutions containing copper sulphate. It’s efficient and safe. It is much better to fight pests, even with chemical means, before fruit formation, than then to spray everything on fruits and berries, destroying pests that are already visible to the naked eye.

Warm weather and rich harvests at your summer cottage! 

In the spring, gardeners start tending their plots to get a good harvest of fruit. But simultaneously with the plants, pests wake up that feed on them, leading to death and disease. To avoid such unfortunate consequences, it is necessary to treat trees with copper sulphate and other acceptable preparations.

Why and when do you need spring processing of the garden

In order for fruit trees to be healthy and bring a good harvest, they must be looked after throughout the warm period of the year: from early spring to the first frost. In addition to watering, pruning old branches and fertilizer, you need to spray the trees. Such activities will serve as a prevention of many diseases and help get rid of pests that have spent the winter in the bark, trunk and buds of plants. In addition, spraying helps prepare fruit crops for the growing season and the formation of ovaries.

The sooner you spray the trees, the better. You need to start doing this immediately after the snow melts and at an air temperature of 5 degrees Celsius with a plus sign.

Sprinkling the garden should be done in early spring, while the pests have not yet moved away from hibernation and are very weakened. Therefore, this period is optimal for carrying out preventive work. Copper sulphate is used for these purposes. The solution is also suitable for fertilizer. Gardeners use it as a top dressing for shrubs and plants.

Often fruit and berry bushes, trees are treated with affordable and budgetary preparations. For example, you can spray your “wards” with copper sulfate, urea, iron sulfate, lime, Bordeaux liquid, etc.

These substances actively fight insect pests and diseases of trees and shrubs. But at the same time, they belong to mineral fertilizers. When using these substances, their particles do not settle in the fruit, and the effect is long-lasting.

Copper sulfate treatment

Copper sulphate (divalent copper sulfate, copper sulphate) is available in the form of a blue powder or liquid. Let’s well dissolve in water.

It is used in everyday life due to its universal action and antiseptic properties. In particular, builders treat wooden surfaces with copper sulphate to prevent rotting, leakage, etc. It is also suitable for processing plastered, brick, concrete surfaces.

Copper sulfate can be used for:

  • production of mineral-based paints;
  • removal of rust stains on the ceiling that appeared after flooding;
  • determining the presence of manganese and magnesium in aluminum alloys and stainless steel.

But most often it is used by gardeners to process trees in the spring.

The use of copper sulfate has its advantages:

  • if you follow the instructions and recommendations, then the product does not accumulate in the crop, plants, there are no side effects;
  • fights mold, fungus;
  • has a preventive property in the destruction of insect pests;
  • parasites do not get used to it;
  • nourishes horticultural crops with the necessary copper elements necessary for photosynthesis and flowering;
  • affordable price.

You can enhance the effect of using copper sulphate if you mix it in equal amounts with lime. The resulting liquid can be used at all stages of plant development.

Dosage and solution preparation

Before you start sprinkling garden crops with copper sulfate, you need to calculate the required dose of the product. The concentration of the finished liquid will depend on the purpose of the application: prevention or control of parasites and diseases that have already appeared. There are three commonly used concentrations:

Concentration, % How to breed Treatment

20-30 g of the product must be diluted in 10 liters of waterIt is used for prevention and in cases of signs of copper deficiency in fruit and berry crops 0.5-1

Mix 50-100 gr in 10 liters

Such a solution will help in the fight against fungal infections, some types of pests. Can treat wounds on tree trunk shoots

Dilute 300-500 g of powder into a bucket of water with a volume of 10 liters

It is used for tillage, mold removal on wooden structures. Does not apply to plants

If you follow these recommendations, you can ensure complete protection of the garden and get a good harvest, healthy trees.

When to Use Copper Sulfate

Gardeners can use the solution throughout the summer season. Efficiency proven:

  • in the fight against diseases and pest larvae that winter in the bark of trees. This must be done before the buds open;
  • the root system before planting or transplanting plants of any kind can be dipped in a solution of copper sulfate. This will help disinfect the roots. Only after the procedure they must be thoroughly rinsed under running water;
  • at the first symptoms of the disease or the appearance of parasites;
  • after the leaves fall, you can process the garden again to destroy pests wintering in the ground and bark.

Sometimes copper sulphate is used at all stages of tree development, except for vegetation.

General rules for the treatment of trees and bushes with copper sulphate

Before you start processing the garden, you need to prepare the plants:

  • cut branches damaged by the disease, dried or broken off;
  • clean trunks, skeletal branches from lichen, moss and bark that has exfoliated;
  • finishing cracks and cuts with wax, paraffin, other means that can provide sealing;
  • cleaning from the ground at the roots of fallen leaves, weeds, last year’s grass.

The solution is prepared in an enamel bowl. To do this, it is necessary to dilute the powder of copper sulfate in hot water and stir until the latter is completely dissolved. The resulting mixture should be brought to the required volume with cold water.

See also:   Is it possible to crown a birch

To maximize the effect of the procedure, it must be carried out in dry weather, having studied the forecast for the next 3 days in advance. Otherwise, all efforts will be in vain.

While working with vitriol, it is necessary to protect hands, eyes and respiratory organs. The storage of the solution is possible for a maximum of 10 hours, therefore, when preparing it, the area to be treated and the plants that grow on it should be taken into account.

Processing features depending on the horticultural crop

You can treat trees with copper sulfate with a 1% or 3% solution. The duration and number of such manipulations depends on the type of crop being sprayed.

Gardeners treat quince with blue vitriol in the spring, as it helps to get rid of:

  • fungus;
  • moniliosis;
  • vertical screw;
  • phyllosticosis;
  • scab.

If the plant is already affected, then it is necessary to spray 2-5 liters once with a 1% solution for each tree before it begins to bloom. After the completion of the growing season, this remedy should not be used.

Pear and apple tree

Copper sulfate will cope with such diseases:

  • bacterial cancer;
  • scab;
  • moniliosis;
  • phyllosticosis;
  • fungal infections;
  • verticillium wilt.

For the first time, the treatment of these crops is carried out in the spring with a 3% solution until the leaves appear. For each tree, 3-4 liters are needed, taking into account the soil at the roots. You can re-irrigate after 14 days, but with less liquid – 2-5 liters per plant. The solution is already needed 1%. Sprinkling can also be carried out during the formation of ovaries: the solution is used in this case 0.5-1%, 10 liters are needed to treat 2-4 plants.

Apricot and peach

Trees are treated against:

  • various types of fungal spotting;
  • clusterosporosis;
  • moniliosis.

Peach and apricot are processed once in the spring just before flowering. To do this, you need a 1% solution of copper sulfate at the rate of 2-3 liters per tree.

Cherry, plum, sweet cherry

If an infection has occurred:

  • bacterial cancer;
  • clusterosporosis;
  • leaf curl;
  • moniliosis;
  • fungal spotting.

It is necessary to treat the plants with a 3% solution of copper sulfate. One culture requires 2-3 liters. After the growing season is over, you can repeat the treatment with a 0.5% agent at the rate of 4 liters per tree.

Gooseberries, raspberries, currants

Sprinkling bushes occurs for the prevention and treatment of such diseases:

  • anthracosis;
  • fungal spotting;
  • verticillium wilt.

In the spring, only one treatment is needed and before the leaves bloom. For this purpose, a 1% copper sulfate agent is used, while 1.2-2 liters of liquid are needed for each bush. After the end of the growing season, processing of gooseberries, raspberries, currants is not required.

Fruit grapes (vine)

In this case, copper sulfate is used to heal from:

Before flowering, a solution is used at a concentration of 3%, the consumption per plant is 1.2-2 liters.

If the plant is old with coarsened bark, then the concentration of copper sulfate can be increased to 5%.

After the end of the growing season, you can re-treat with a 0.5% solution, using about 3.5 liters per plant.

Bush and climbing rose

Copper sulfate will help this culture in the fight against:

  • powdery mildew;
  • root cancer;
  • black leaf spot.

For spring spraying, a solution at a concentration of 1-3% is needed before the leaves appear. 1 liter of liquid is needed for 10 m 2. Before the growing season, the procedure can be repeated with 1% copper sulphate at the rate of not more than 0.5 liters per bush.

How to breed copper sulphate for tree processing

Early spring garden treatments involve the use of a 1% product. To do this, a bucket of water with a volume of 10 liters requires 100 grams of the substance.

In a cold liquid, copper sulfate crystals do not dissolve well, so it should be diluted in hot water.

  • pour the treatment agent into a container – in order to avoid oxidation, you need to use a plastic or enameled bucket;
  • add 0.5 liters of water to the powder, the temperature of which is 50 degrees;
  • mix, let it brew;
  • add cold liquid until the required 10 liters are obtained.
  • to stir thoroughly.

The drug used is of chemical origin, so when working with it, you must follow the safety rules.

Separate facts and features of copper sulfate

Before you start working in the garden with copper sulfate, you need to familiarize yourself with its features. In particular, it will be useful to know that:

  • 1 tsp with a slide contains 6 grams of copper sulfate powder;
  • the substance is classified as hazard class 3, therefore, when working with it, it is necessary to protect the respiratory organs, eyes, skin;
  • if you use the solution at an air temperature of 30 degrees with a plus mark, you can burn the leaves and other delicate tissues of the tree;
  • copper sulfate is dangerous for bees, so beekeepers should refuse to use it or do it very carefully;
  • do not pour the solution into the water – it will lead to the death of the fish. If the garden is located near a natural reservoir, then the processing should be carried out carefully;
  • you can add the substance to whitewash when whitewashing trees.

Knowing these facts will help you use copper sulfate effectively.

Precautionary measures

Despite its effectiveness, copper sulfate is dangerous to humans, so certain rules must be observed when working with it:

  1. You can not eat, drink and smoke.
  2. Be sure to use personal protective equipment: gown, gloves, goggles, headgear, respirator, etc.
  3. It is impossible to process trees with copper sulphate in the spring if there are children or pets nearby.
  4. The solution for sprinkling should not be diluted in food utensils, which will later be used for domestic purposes.
  5. After completing work with copper sulfate, you need to remove the work surface, thoroughly wash your hands and exposed skin, rinse your mouth.
  6. Avoid contact with water.

If copper sulfate gets into the eyes or on the skin, these areas should be thoroughly rinsed with running water. If ingested, you need to rinse the stomach, induce vomiting, give a diuretic and be sure to seek medical help. If you accidentally inhale copper sulfate, you should go to fresh air, rinse your mouth and rinse your nose.

To treat the garden from diseases and pests, you do not need to spend a lot of money – a solution of copper sulphate is suitable for these purposes. Despite its effectiveness and availability, it is very toxic, so it must be used carefully so as not to harm yourself or others.

Leave a Reply