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Using Bordeaux fluid for spring gardening

Using Bordeaux fluid for spring gardening


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Bordeaux liquid is usually called a solution based on copper sulfate in milk of lime. The finished liquid has a sky blue color and is used in modern crop production as a fungicidal agent. Initially, the mixture invented by the French botanist was used to protect the vineyard from mold fungi. A little later, other types of plants, as well as soil, were treated with liquid.

Do it yourself

At present, gardeners and gardeners have the opportunity to independently produce Bordeaux liquid using one of the recipes. It is very important to remember that in the manufacturing process you can not use metal utensils.

Step-by-step instructions for preparing a 1% solution:

  • add 0.1 kg of quicklime to a small amount of warm water;
  • add water to a volume of 5 l;
  • fill another container with a small amount of hot water;
  • add 0.1 g of copper sulfate;
  • then also bring the volume to 5 l;
  • mix both solutions thoroughly in one container.

Step-by-step instructions for preparing a 3% solution:

  • in a small amount of warm water add 0.45 kg of quicklime lump;
  • add water to a volume of 5 l;
  • fill another container with a small amount of hot water;
  • add 0.3 g of copper sulfate;
  • then also bring the volume to 5 l;
  • mix both solutions thoroughly in one container.

Concentrated Bordeaux liquid, packaged in plastic bottles from 100 ml to 1 liter, is often sold at special points of sale and garden centers. This mixture is very convenient to use, and before use, you need to add 250 ml of the finished concentrate to 10 liters of water.

How to make Bordeaux liquid

Processing the garden

Processing of garden plantings in early spring is the key to obtaining a good harvest. It is necessary to use a self-prepared solution or registered preparations based on a Bordeaux mixture for garden processing, which are allowed for use in home gardening.

Using 1% solutionUsing a 3% solution
Processing of fruit plantations and vegetable garden crops at the stage of active vegetation, that is, when foliage appearsProcessing in the autumn, after leaf fall, in early spring, before the stage of bud blooming in the garden

Bordeaux liquid is one of the most popular universal fungicides in modern horticulture, which has a very good duration of protective effect. Protective properties last up to one month, so it is very important to comply with the processing time. Processing is carried out exclusively in dry and calm weather, in the early morning or evening hours.

Technology for processing garden plants:

  • spraying before the buds open the currant and gooseberry bushes against septoria, anthracnose and other spotting at the rate of 1-1.5 l per plant;
  • in the early spring, the processing of cherries, cherries, peaches, apricots and plums from coccomycosis, kleisterosporosis, spotting, as well as curly and moniliosis at the rate of 2-10 liters per plant;
  • Until the time of active vegetation, the fruit plantations of the pear, apple and quince are processed from phyllosticosis, scab, spotting, curls and moniliosis, spending about 2-10 liters of working solution for each plant.

It must be remembered that Bordeaux liquid cannot be mixed with any organophosphate insecticides, as well as with drugs that can decompose under alkaline conditions. It should be borne in mind that the prepared solution should be used within 24 hours.

Soil treatment

Conducting tillage should be characterized not only by quality indicators, but also comply with the rationality and rules of soil-, moisture- and resource-saving technology. The timely disinfection of the soil is included in the agrotechnical complex of measures, the quality and quantity of the crop depends on the timely and correct implementation of which.

Most often, Bordeaux mixture is used for processing greenhouse soil. Processing should be carried out in conjunction with other disinfection measures. It is very important to remember that Bordeaux fluid and copper sulfate can cause excessive accumulation of copper in the soil, which can negatively affect the quality of the crop.

Experienced gardeners and gardeners avoid the use of copper-containing preparations for soil disinfection and are increasingly using such popular biological products as stubble biodestructor, as well as Fitosporin and Phytocide, which have proven themselves in home gardens.

Application features

Along with other copper-containing preparations, Bordeaux fluid is most effective against downy mildew fungi and various types of spotting. However, during processing, insufficient protection against real powdery mildew fungi is recorded, which should be taken into account when developing a preventive spraying scheme.

The greatest effectiveness is recorded when using the product in the early spring, in addition, a high level of protection guarantees repeated use in the summer to prevent the spread of infection. It is necessary to strictly follow the instructions for use and comply with the terms of the last processing, which will reduce the negative impact of the chemical composition on the environmental performance of the crop:

  • fruit, berry, citrus fruits and vines, as well as potatoes, beets, hops and alfalfa, are last processed no later than two to three weeks before harvesting;
  • the last processing of tomatoes, cucumbers, watermelon and melon can be carried out about ten days before harvesting;
  • medicinal plants can be processed no later than three weeks before harvesting for use or storage.

Bordeaux fluid: application

When working with Bordeaux liquid, it is extremely important to observe safety precautions and carry out the processing of garden crops only in special clothing, gloves and a mask.