Instructions for use of the fungicide Revus Top and the mechanism of action
The instructions for use of the fungicide "Revus Top" give precise recommendations for the use of the drug. A modern remedy helps to preserve the harvest, protects it from fungal infection. She begins to rage in gardens and greenhouses with a sharp change in weather, prolonged rains, and daily temperature fluctuations.
Content
- 1 Composition and form of release of the fungicide "Revus Top"
- 2 Advantages and disadvantages
- 3 Mechanism of action and scope
- 4 The period of protective action and the speed of exposure
- 5 How to properly prepare a working solution
- 6 Instructions for use of the fungicide "Revus Top"
- 7 Handling precautions
- 8 Toxicity
- 9 Compatibility with other pesticides
- 10 Storage terms and rules
- 11 Fungicide analogs
Composition and form of release of the fungicide "Revus Top"
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 plastic container with a volume of 5 liters.
| Active substance | Concentration (%) | Act |
| Mandipropamide | 25 | Blocks sporulation, inhibits lipid synthesis, prevents spores from germinating |
| Difenoconazole | 25 | Interferes with sporulation, inhibits mycelium growth |
Advantages and disadvantages
The disadvantage of the "Revus" preparation is that it kills only 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 are:
- "Revus" can be included in tank mixes, it is compatible with insecticides, other fungicides;
- precipitation does not affect the duration of the protective action;
- increases the keeping quality of potatoes;
- quickly penetrates the tissues of the plant and destroys the fungus within 7-14 days;
- reduces crop losses.
Substances that make up the preparation "Revus Top", with frequent use, accumulate in the soil, suppress the vital activity of beneficial soil bacteria. This should be remembered when applying the fungicide, observe the recommended rates, 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 the lower oomycete fungi that cause late blight and peronosporosis. Fungicide protects vegetables from fungal diseases, is quickly absorbed into the leaves, and migrates to all parts of the plant.
In places where pathogens accumulate, the fungicide begins to act:
- interferes with the synthesis of lipids;
- inhibits the growth of mycelium;
- prevents spores from germinating;
- prevents reproduction.
"Revus" possesses translaminar activity and acts differently from contact and systemic fungicides. It quickly penetrates into the wax film, which is on the surface of the leaf plates, therefore it is not washed off with water during watering (rain).
The period of protective action and the speed of exposure
Antifungal action begins in 2-3 hours, lasts 1-2 weeks. The active substance of the drug (mandipropamide) penetrates into the newly formed leaves, protecting the new growth.
The fungicide is not afraid of rain, even if only 1 hour has passed after spraying.
The wax layer of plants absorbs the solution, which ensures high rain resistance of the Revus preparation, its effectiveness in case of heavy and frequent precipitation. 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 an agitator. Fungicide is added to the tank at the rate:
- water - 10 l;
- Revus Top - 10-12 ml.
The working solution is stirred during processing, consumed immediately after preparation.
Instructions for use of the fungicide "Revus Top"
The entire solution must be used during the day. Consumption rates are indicated for each vegetable crop in the table.
| Culture | Number of treatments | Waiting period (days) | Working fluid consumption per 1 hundred square meters (l) | Application scheme |
| Onion | 2 | 15 | 10 | 1st time when feather length 7-10cm |
| 2nd time in 7-14 days | ||||
| Potatoes | 4 | 5 | 5 | 1st time until foliage closes |
| Outdoor tomatoes | 4 | 5 | 5 | 1st time 10 days after landing in the ground, all subsequent ones with an interval of 7-14 days |
The effect of the treatment is higher if it is carried out in the morning on dry leaves.
Handling precautions
Work in normal work clothes that cover the skin as much as possible. Use a hat, glasses, latex gloves, and a respirator. At the end of all personal protective equipment, treat with a solution of baking soda, rinse.
Toxicity
The fungicide can be used near bodies of water. It is not harmful to organisms that live in water. Revus Top is harmless to people, pets, birds and insects.
Compatibility 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.
The 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;
- "Speed";
- CE.
Storage terms and rules
Fungicide "Revus" is stored in the back room, where there is no drinking water or food. Children and pets are not allowed to enter the store. Empty containers from the preparation must be burned. Store the product for no more than 3 years.
Fungicide analogs
Fungicide "Revus Top" is produced by "Syngenta" company. To protect vegetable crops from fungal infection, she has drugs:
- Ridomil Gold;
- "Quadris".
"Quadris" protects against all dangerous diseases, prolongs the fruiting period. "Ridomil Gold" is used during active vegetation, it improves the keeping quality of potatoes.
