In the plans of each gardener there are measures for the prevention of plants against fungal diseases .One of the most affordable means used for treatments is copper sulphate. The effectiveness of its use, the instructions and the rules for preparing the working solution from phytophthora will be discussed in this article.
Table of contents
- When do they use copper sulphate?
- Advantages and disadvantages of using
- Instructions for use for tomatoes and other plants
- Safety measures when working with
- means Gardeners reviews on the fight against late blight on tomatoes with copper sulphate
When do you use copper sulphate?
Many decades to a series of copper sulfate does not lose its relevance in garden work. It is used as a crop protection against fungal infections:
- scab;
- white spot;
- ascochitis;
- Moniliasis;
- powdery mildew;
- phytophtora and other diseases.
Ascohitosis 
False mealy dew 
Moniliasis 
Signs of white spot 
Phytophthora 
Scaby apple In addition to preventive purposes, the tool is used for root root preparations. Often, plants growing on acidified, sandy or peat soils are deficient in copper. 1-2 treatments are enough to compensate for the lack of trace elements in the soil.
Preseeding works usually begin with soil disinfection. As an option in this case, use a solution of copper sulfate. Also, the tool acts as an antiseptic for wooden structures. Spraying the tree prevents the formation of mold or mildew. Gardeners often resort to such a method for arranging greenhouses or other garden structures.
Advantages and disadvantages of using
The main advantage of copper sulfate is that the active agents remain after spraying on the surface of the plant, without being absorbed into greens and fruits. Thanks to this, it is possible to obtain a crop that is safe for people's health. Among other advantages:
Copper sulfate is used to kill fungus and other diseases in plants by spraying or placing the plant itself in the - solution using simple technology using ;
- affordable price ;
- low toxicity ( harmful substances decompose in a few days);
- with proper use of does not have side effects ;
- composition enriches the plants with iron ;
- repeated treatments do not cause addictive in fungi and bacteria.
Insecticide is scientifically effective against phytophthora due to its high copper content. It is used in the manufacture of other products for the garden. Any arguments about the toxicity of a substance are based only on an unjustified increase in its dosage. The effect after correct treatment of the beds persists for 2 weeks, and the effect of the active components begins within a couple of hours.
Disadvantages of copper sulfate still exist, although the drug has been tested by several generations of gardeners. In the old days, when there was practically no choice of insecticides, blue liquid was used in every household. Now it is easy to find an alternative, especially since there are compounds based on biological substances on the market. Their use is considered absolutely safe, unlike copper solution. It should also be remembered that the working fluid can burn out the plants or make the fruits unfit for consumption if you increase the amount of crystalline powder.
Instructions for use for tomatoes and other plants
To prepare the working solution, it is necessary to dissolve the blue crystals in water. The agent, in the amount of 50 , is diluted with a gram first in a small amount of liquid, then, after thorough mixing, the total volume is adjusted to l. 5 . The properties of the active substances are maintained throughout the day. The dissolved vitriol is not subject to long-term storage, therefore it is recommended to prepare a new portion immediately before use.
Preparation of copper sulfate solution for spraying The presence of toxins obliges to take precautions when spraying the liquid:
- spray away from water bodies and livestock ;
- if there are bees, not to release them from the hives on the day of the work.
It is necessary to process plants in the evening or early morning in dry weather. If there is a threat of precipitation, it is better to postpone the work to another day( the effect disappears if it rains during 4 hours).
Experienced gardeners are advised to take phytophthora prevention measures in several stages.
- The first stage is conducted by at the stage of preparing the soil for sowing seedlings. The soil is moistened with a spray with a 3% solution of copper sulphate. Do it once.
- The second stage is carried out by at the picking stage of the seedlings. A day before transferring the seedlings to individual containers, the soil is moistened with a 1% copper-based solution. A more concentrated liquid should not be used, as it can have a depressant effect on plants.
- The third stage provides for the to water the holes when planting seedlings on the garden bed. The consumption rate of funds: 1 liter per 1 hole. Later Bordeaux liquid sprayed the plants at the stage of formation of the fruit. The concentration of copper sulfate for the green part of the crop should not exceed 0.1-0.2%, otherwise burns may appear on the leaves.
Safety measures when working with
When working with copper sulfate, wear gloves and goggles to protect the skin and mucosa from direct contact with the solution. When carrying out the treatment can not eat water and food, as well as smoke. In case of contact with open areas of the skin or mucous membrane, it is recommended to immediately wash the affected area with plenty of water.
Insecticide is a chemical substance, therefore when using it in the household should adhere to some rules:
Processing of copper sulfate can be carried out only in calm weather. Gardeners' reviews on the fight against blight on tomatoes with blue vitriol
Alexey Petrovich, 53 years old. I have grown tomatoes for several years in a row without facing the problem of phytophtoras. I use copper sulphate at least 3 times per season. The first time I disinfect the seeds, the second time 1 l per well before planting the seedlings, the third time before flowering as a foliar application.
Anastasia, 36 years old. I water the soil with a solution of copper sulphate before each planting, but tomatoes are still affected by blight. Means I cook correctly, adhere to the rules of watering. Maybe something else missed or copper sulfate is not so effective?
Timur, 46 years old. Copper sulfate in the farm - the first assistant. In the greenhouse, all disinfection is performed with a blue liquid, the earth is also disinfected with it. Yes, and seeds stand before sowing in a weak solution. Tomatoes are obtained one-on-one, with no signs of late blight.
Vladlen Vitalyevich, 51 years old. Copper sulfate has been used for gardening for over 30 years. I have never purchased drugs based on chemicals because of mistrust and unwillingness to poison the fruits. And I disinfect the soil for seedlings and beds before planting with copper solution, and work on the greenhouse in the spring. The best assistant is hard to find. With phytophthora tomatoes copes as wonderfully as with other tasks. Recommend!
Sophia, 49 years old. I was completely overwhelmed when I discovered brown specks on ripening tomatoes after the rain. I didn’t want to remain without a crop, I asked for help from my country house neighbor. She advised to treat twice the bed with a solution of copper sulphate. The tool perfectly coped with the problem. In the farm, as it turned out, the copper-containing drug is an indispensable thing.
When using several varieties of insecticides at once, it should be remembered that copper sulfate is incompatible with preparations that decompose in the alkaline medium( for example, organophosphorus substances).
