Fungicide Revus: instructions for use, mechanism of action, analogues
In the instructions for use of the Revus Top fungicide, precise recommendations are given on the use of the drug. A modern tool helps to preserve the crop, protects it from fungal infection. It begins to rage in gardens and greenhouses with a sharp change in weather, prolonged rains, daily temperature fluctuations.
Composition and release form of the Revus Top fungicide
This is a unique drug. It contains two substances that destroy the fungus: mandipropamide, difenoconazole. "Revus Top" is produced in the form of a suspension concentrate, poured into a 5-liter plastic container.
| Active substance | Concentration (%) | Action |
| Mandipropamide | 25 | Blocks sporulation, inhibits lipid synthesis , does not allow spores to germinate prevents mycelium growth |
Pros and cons
The downside of the Revus drug is that it only kills those fungi that cause peronosporosis and late blight in some vegetable crops. The advantages can be listed for a long time, of which the most relevant:
- "Revus" can be included in tank mixes, it is compatible with insecticides, other fungicides;
- rainfall does not affect the duration of the protective action;
- increases the keeping quality of potatoes;
- quickly penetrates the plant tissue and destroys the fungus within 7-14 days;
- reduces crop losses.
The substances that make up the preparation "Revus Top", with frequent use, accumulate in the soil, inhibit the vital activity of beneficial soil bacteria. This should be remembered when applying the fungicide, follow the recommended norms, do not exceed the number of treatments specified in the instructions.
Mechanism of action and scope
The drug is used to treat potato tops, tomato bushes and onions from lower oomycete fungi that cause late blight and peronosporosis. Fungicide protects vegetables from fungal diseases, quickly absorbed into the leaves, migrates to all parts of the plant.
In places where pathogens accumulate, the fungicide begins to act:
- prevents lipid synthesis;
- slows down mycelium growth;
- keeps spores from germinating;
- prevents reproduction.
"Revus" has translaminar activity, acts differently than contact and systemic fungicides. It quickly penetrates the wax film that is on the surface of the leaf plates, so it is not washed off with water when watering (rain).
Protection period and exposure speed
Antifungal action begins in 2-3 hours, lasts 1-2 weeks. The active substance of the drug (mandipropamide) penetrates the newly appeared leaves, protecting the new growth.
Fungicide is not afraid of rain, even if only 1 hour has passed since spraying.
The wax layer of plants absorbs the solution, this ensures high rain resistance of the Revus preparation, its effectiveness in heavy and frequent rainfall. The decay period of active substances is 5-15 days, after their expiration, vegetables can be eaten.
How to properly prepare a working solution
To prepare the working solution, you need a sprayer with a stirrer. The fungicide is added to the tank at the rate:
- water - 10 l;
- "Revus Top" - 10-12 ml.
The working solution is mixed during processing, consumed immediately after preparation.
Instructions for using Revus Top fungicide
All solution must be used throughout the day. In the table for each vegetable crop, the consumption rates are indicated.
Waiting time (days)| Application scheme | Onion | 2 | 15 | |
| 1st time feather length 7-10cm | 2nd time after 7-14 days | Potato | ||
| 5 | 5||||
| Tomatoes in the open field | 4 | 5 | 5 | |
The effect of the treatment is higher if it is carried out in the morning on dry leaves.
Precautions for use
Work in ordinary work clothes that cover the skin as much as possible. Use headgear, goggles, latex gloves, respirator. At the end, treat all personal protective equipment with a solution of baking soda, rinse.
Toxicity
Fungicide can be used near bodies of water. It is not dangerous to organisms living in the water. Revus Top is harmless to people, pets, birds and insects.
Compatible with other pesticides
The fungicide has good compatibility with chemicals that summer residents and agricultural enterprises use against pests and weeds. Before preparing the tank mixture in full, a mandatory test is carried out.
Drugs are incompatible if the solution becomes cloudy or a precipitate appears. To protect plantings from Alternaria, late blight, add to the tank mixture:
- Revus Top;
- "Quick";
- EC.
Terms and rules of storage
Fungicide "Revus" is stored in a utility room, where there is no drinking water, food. Children and pets are not allowed to enter the vault. Empty containers from under the drug must be burned. Store the product for no more than 3 years.
Fungicide analogues
Revus Top fungicide is manufactured by Syngenta. To protect vegetable crops from a fungal infection, she has drugs:
- Ridomil Gold;
- Quadris.
"Kvadris" protects against all dangerous diseases, prolongs the fruiting period. "Ridomil Gold" is used during active vegetation, it improves the keeping quality of potatoes.
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