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In our time, it is impossible to grow a good grape harvest without the use of drugs. Therefore, every winegrower selects a truly effective remedy for himself. One of them is Quadris fungicide instructions for use for grapes will be discussed in this article.
Description of the drug
Quadris for grapes is a type of strobilurin. Differs in a long period of action and a high positive effect. Most often it is used for processing vineyards. This remedy copes well with fungal diseases, it is also used for the purpose of prevention. Thanks to the components that make up the drug, fungal spores are killed, plant growth is stimulated.
The plant treated with the drug is cured within forty-eight hours. During this entire period, both mycelium and fungal spores, which are in an incubation state, die. Thanks to this, the vineyard will no longer be threatened with the death of the vine.
According to the instructions for use, the Quadris preparation for grapes prolongs the fruiting process. In addition, it is not prohibited to process ripe fruits that are ready for harvest. On the contrary, such bunches can be stored longer than untreated ones. The drug is completely harmless to both birds and insects.
The active substance in Quadris is Azoxystrobin at a concentration of two hundred and fifty grams per liter. After processing grapes, this substance acts on bacteria in the following way. It blocks the oxygen supply for the spores, which prevents them from multiplying and ultimately die. The whole process happens pretty quickly. One hour is enough for the death of a bacterial colony.
Experienced winegrowers use Quadris in combination with other preparations. Due to this, they enhance its effect on pathogenic bacteria. The drugs that can be used in parallel with Quadris are:
- Actellik;
- Aktara;
- Karate;
- Topaz;
- Ridomil;
- Revus.
Instructions for use
Quadris is used to treat grapes from diseases such as:
- Mildew;
- Late blight;
- Oidium;
- Gray rot;
- Peronosporosis;
- Alternaria;
- Powdery mildew;
- Black spot;
- Infectious drying.
The drug is diluted, depending on the purpose. If a plant is sprayed for treatment, then a six percent mixture is prepared. In this case, one liter of the diluted substance is used per hectare of vineyard.
The grapes are treated with Quadris at least four times for the whole season. The first spraying should be done before the plant blooms. The second time needs to be processed after flowering. It is imperative to take preventive measures during the formation of fruits. And the last treatment is carried out during the ripening period.
If the vineyard needs to be treated, then the use of Quadris is repeated before flowering and after a week or two. As the culture flourishes, the process is repeated. After the last spraying, it is necessary that at least twenty-five days have passed, only after that it is possible to collect ripe bunches of grapes and eat them.
The solution is prepared as follows:
- A place is selected for working with the drug. It is best if practically no one walks there.
- The sprayer is being prepared. It must be completely clean.
- Calculate how much to use the drug for one tank filling. It should be borne in mind that one hectare of vineyard takes at least eight liters of ready-made solution.
- This is followed by refueling the sprayer:
- One third of the total volume of water is poured into the tank;
- The required amount of fungicide is poured here, adhering to the dosage and stirring thoroughly;
- The rest of the water is poured in and the culture is sprayed.
Precautionary measures
The drug itself is not very toxic, but it is still necessary to take some precautions when working with the fungicide. Thanks to this, you can avoid some unpleasant consequences, since when it enters the human body, reactions such as:
- Dizziness;
- Nausea;
- Headache.
To save a person from suffering, you need to immediately flush the stomach.
Storage rules
It is recommended to store the fungicide in dark rooms, keeping the air temperature in the range from minus five to plus thirty five degrees. In no case should you put boxes with fungus remedy in the same place where food is stored. It is imperative to pay attention to the shelf life of the product when making a purchase, since it can be effective only for three years from the date of its manufacture.
Advantages and disadvantages
This tool, first of all, has the main advantage over other fungicides in that its principle of action on fungal diseases is new and significantly different from them. Fungicide is a quality product manufactured in accordance with all the requirements of international organizations, effective and safe to use.
Analyzing the reviews of winegrowers who successfully use this tool, the following advantages can be distinguished:
- The solution has a long-term effect on the vine;
- Stops the process of reproduction and development of spores for a long time;
- Improves plant photosynthesis;
- Significantly increases productivity.
The only drawback of the drug is its slight toxicity, which, upon direct contact, can cause unpleasant symptoms in humans. But if you follow all the rules for using the drug and do not forget about safety measures, then the drug will not cause any harm.
In conclusion, it should be noted that it is best to prevent any disease by applying the drug than to subsequently treat the plant for a long time. If the damage to the vine is allowed even on a small area, this will lead to a decrease in yield. Therefore, you should not save on the purchase of fungicides and be lazy to process grapes. He will thank him for his work with a high yield that will exceed all expectations.