Content
Bordeaux mixture for roses is a potent substance that helps fight harmful microorganisms. The drug can be used for preventive purposes, but you need to carefully monitor the dosage, since in high concentrations the solution can destroy the plant.
Is it possible to spray roses with Bordeaux mixture?
Before spraying roses with Bordeaux mixture, you should carefully read the instructions.
When strange spots appear on roses, it could be a sign of an infection or fungus spreading. If no measures are taken, microorganisms will begin to actively multiply. The culture will no longer be saved, and the fungus will spread to other areas. To avoid this, you need a broad-spectrum medicine that can be safely combined with other drugs (for example, pesticides).
Pros and cons of use
The medicine is notable for the fact that it produces an immediate effect.This makes it possible to fight even in advanced cases.
It is better to treat roses with Bordeaux mixture in the fall.
Pros:
- low cost;
- lack of toxicity if safety precautions are followed;
- stimulation of growth, improvement of immunity;
- high efficiency against fungus;
- does not penetrate inside the plant;
- does not change the composition of the soil.
Minuses:
- destroys the top green layer of the leaf;
- is washed off after rains and stops working;
- almost no protection from insects;
- can only be used during a certain period;
- difficult to find the right dose.
As you can see, there are enough advantages and disadvantages. The solution may help in severe cases, but it is not advisable to use it on a regular basis.
When to treat roses with Bordeaux mixture
Spraying is carried out in the fall. Since microorganisms do not choose the time to attack, use during the growing season is allowed, but in small quantities. For Bordeaux mixture to work effectively, it is best to carry out treatment on a dry, cool day. If you spray a wet plant, it can cause burns. Gardeners advise doing this after the leaves fall.
Bordeaux mixture is used in autumn for roses and other crops
Rules for preparing the solution
Borodsky liquid is a strong preparation consisting of copper sulfate and slaked lime. Its concentration should be carefully checked.
3% solution
The optimal time for processing is autumn. In this case, you can use a 3% concentration of the substance. The solution is prepared in the following order:
- Prepare the container for the chemical reaction. You can use any material (except metal).
- Fill the container with 1.5 liters of hot water.
- Dissolve vitriol in it in an amount of 300 g.
- Prepare the second container.Fill it with 2.5 liters of hot water.
- Dissolve 350 g of lime in it.
- By adding cold water, both solutions are brought to 5 liters.
- Place a thick layer of gauze over the container with lime to thoroughly strain the substance.
- Prepare a third container into which the strained solution is poured.
- Add vitriol in a small stream to the third container. The composition is stirred.
Photo of a correctly prepared solution
The result should be a bluish liquid. After this, the mixture can be used on roses. The optimal effect can be achieved if you act in the following order:
- carry out pruning;
- remove dry leaves;
- spray with solution (3%);
- cover the plant no later than on the 13th day.
The solution will remove the fungus, preventing it from spreading to other crops.
1% solution
It is possible to spray roses with Bordeaux mixture in summer and spring, but the solution is prepared with a concentration of 1%. The cooking scheme is the same, only the quantity of ingredients changes (you need to divide by 3).
Roses can be treated with Bordeaux mixture in spring and summer.
Processing in the warm season is carried out as follows:
- Using a spray bottle, spray the mixture (1%) evenly onto the crop.
- It is better to remove flowers in advance.
- You need to prepare for the fact that some leaves may fall off - they will need to be burned.
- Spraying is performed three times every 10 days.
Rules for treating roses with Bordeaux mixture
After preparing the composition, there is no need to delay its use. The mixture can be stored in this form for no more than 24 hours. Additionally, you should not add water to the solution, as it will lose its properties and will not work.In some cases, this can lead to damage to the green mass.
Bordeaux mixture is used to combat the following pathologies:
- infections;
- fungus;
- rot;
- rust.
As mentioned above, in the autumn (in the middle and end of the season) roses are sprayed with a 3% composition, in any other period (except winter) - 1%. Treatment with the mixture is carried out in dry weather, preferably cool. In conditions of high humidity, burns form on the leaves. Spraying is carried out evenly so that the substance can spread throughout the plant and penetrate the pores of the stem.
The mixture is sold both in cans and in bags
If you follow each rule, the protective shell will last about 30 days. This will give the roses time to restore their immunity. As a result, the disease may recede.
Conclusion
Bordeaux mixture for roses is an effective remedy for controlling microscopic pests. The mixture works with any type of fungus, prevents the formation of rot and rust, restores immunity and stimulates plant growth. Due to its high toxicity, the drug should be used only in special cases - when the disease leaves no chance. The harmful effects of the medicine can only be avoided if it is prepared correctly. A detailed guide from a specialist on how to treat roses with Bordeaux mixture in the autumn is presented in the video.
