Fungicides are chemicals that are used to combat fungal diseases and seed dressing from fungal spores before planting.
There are a huge number of different drugs designed for this, but each of them has its own specifics and is shown for different plants. We propose to consider in more detail the drug "Bravo", belonging to this group, to get acquainted with the mechanism of action and instructions for use.
Active ingredient, preparative form, packaging
The main active component of this tool is chlorothalonil, its content in the preparation is 500 g / l. "Bravo" refers to organochlorine pesticides. Available in the form of a concentrated suspension, packaged in bottles of various sizes from 1 to 5 liters.
Benefits
The drug has a number of advantages that make it more attractive in comparison with other fungicides designed to protect vegetable crops.
- Prevents peronosporoz, late blight and Alternaria on potatoes and other vegetable crops.
- Effectively used to protect wheat ears and leaves from various diseases.
- The possibility of using in complex programs of control of diseases and pests in the company with fungicides belonging to other chemical classes.
- Effective even in periods of heavy rainfall and with automatic irrigation.
- Quickly pays off.
Mechanism of action
The mechanism of action is characterized as multisite. The drug provides preventive protection of vegetable crops from numerous fungal diseases by stopping the growth of pathogenic fungal spores.
Learn more about such fungicides as "Skor", "Ridomil Gold", "Switch", "Ordan", "Merpan", "Teldor", "Folikur", "Fitolavin", "DNOK", "Horus", "Delan" , "Glyokladin", "Cumulus", "Albit", "Tilt", "Poliram", "Antrakol".The precautionary action allows the plants not to expend their vitality in the fight against the disease, which allows the crops to take root well and grow.
Important! The action of the drug begins immediately after treatment.
Preparation of working solution
In order to properly use the fungicide "Bravo", it is necessary to study the instructions for use and know how to dilute it. The spray tank must be checked for contamination as well as good condition.
Then it is half filled with water and a measured amount of the fungicide is added, which depends on which culture you plan to process.
The tank is filled with water to the top, while the mixture is continuously stirred. The container in which the drug was located must be rinsed several times with water and added to the main mixture.
Method and time of processing, consumption
Spraying is carried out in the initial phase of the growing season, when a favorable environment for the development of fungal infections is created, that is, in the rainy period. The highest efficacy is observed when the drug is applied on time, prior to infection of the cultures.
The consumption rate of the drug depends on the cultivated culture. For potatoes, cucumbers (on open ground), winter and spring wheat take 2.3-3.1 l / ha. For onions and tomatoes use 3-3.3 l / ha.
Hops are also treated during the growing season at the rate of 2.5-4.5 liters per hectare. The flow rate of the working fluid is 300-450 l / ha. Least of all the drug is consumed at the beginning of the growing season or disease, and with the complete defeat of plants by the fungus increases significantly.
Important! The working solution is used exclusively on the day of preparation.
Period of protective action
Depending on the agricultural technology that is used, the crop grown and its condition, the protective effect of the drug lasts from 1 to 3 weeks. The procedure should be repeated after 1-2 weeks in cases where the weather conditions have not returned to normal or the plants are infected.
Toxicity
Marked 2nd class of toxicity for mammals and 3rd for bees and birds. The drug is not used in the sanitary zone of water bodies. "Bravo" is a fungicide that contains chlorothalonil, which can be dangerous for bees, so the area of their summer should not be closer than 3 km from the treated fields.
In order to comply with environmental regulations, spraying is carried out early in the morning or late in the evening, and the wind speed should not exceed 5 km / h, if these rules are observed, the preparation is of little danger to the environment and its inhabitants.
Did you know? The latest developments of Japanese scientists are truly unique. They invented a tool based not on chemical components, but on fermented milk bacteria.
Compatibility
It goes well in tank mixes with many other fungicides and insecticides. It should not be used with herbicides, due to the fact that the treatment period does not match. Not recommended for use in combination with other concentrates. Did you know? Progressive scientists around the world are puzzled by the development of safe pesticides, and have already achieved some success. So, for example, in Japan, the USA, Germany and France use products that decompose in the soil into carbon dioxide and water.
Shelf life and storage conditions
Store "Bravo" in specialized warehouses for pesticides, in a sealed original package for not more than 3 years, the date of manufacture. The air temperature in such rooms can vary from -8 to +35 degrees.
When used according to the instructions for use, subject to the rules of agrotechnology and the timely introduction of fungicide "Bravo" guarantees reliable protection against numerous fungal diseases.