Herbicide Magnum: instructions for use, consumption rates and analogues

Magnum is a systemic herbicide that penetrates weeds and acts at the cellular level. The drug is recommended for use on crops of cereals and flax. These crops are not afraid of this type of herbicide. The active substance that is part of the composition acts only on weeds. The herbicide is used in tank mixes with another class of chemicals to more effectively kill vegetation that interferes with the growth of major crops.

Composition, release form and purpose

Magnum or Magnum-Super is an effective tool for the destruction of annual and a number of perennial dicotyledonous weeds in fields sown with cereals (winter and spring) and flax. The herbicide copes even with the wild thistle and thistle.

The drug is produced by the Russian company August. It can be used in large farms for aerial processing of fields. The active substance - metsulfuron-methyl - belongs to the class of systemic herbicides - sulfonylurea. This main component of the drug destroys weeds at the cellular level.

The herbicide is available in the form of water-dispersible granules. Packing - plastic bottles of 100 grams.

Mechanism of action of Magnum

The active substance is absorbed by young leaves and roots of weeds, penetrating inside, inhibits the formation of substances necessary for DNA biosynthesis. As a result of such a biochemical process, cell division is suspended, the plant dies.

Impact speed

Complete penetration of weeds occurs 4 hours after treatment.The active substance begins to act immediately after entering the plant organs. After a few hours, the weeds stop growing. They die - for 1-3 weeks after treatment. Plants have chlorosis, reddish color of leaves, necrosis, death of the apical bud.

Protection period

The drug of selective and systemic action destroys growing weeds throughout the growing season.

The first noticeable symptoms of chemical exposure appear 2-3 days after treatment.

Herbicide is desirable to use before sowing, before or after emergence of seedlings of the main crops. The drug is effective in all weather conditions. The grains themselves are resistant to this type of herbicide.

Main positives and negatives

Magnum Benefits:

• convenient packaging;
• economical consumption;
• high efficiency;
• shows selective activity;
• can be used at the 2-3 leaf stage until the end of tillering;
• kills all major weeds in grain crops.

Cons of use:

• resistance may develop with prolonged use;
• not recommended for alkaline soils (long half-life);
• destroys sensitive vegetable crops growing close to sprayer action;
• do not spray plantings by aerial method near fishery reservoirs;
• after cereals next year, vegetables are planted only after deep plowing;
• recommended to adhere to crop rotation restrictions.

Consumption of working fluid

The drug must be dissolved in water before use. The flow rate of the working fluid is 200-300 l/ha (25-50 l/ha for aviation spraying). The norm of the drug is 0.005-0.01 kg/ha.

Instructions for the preparation and use of the working solution

On the day of application of the herbicide, a working solution is prepared. The drug is used in the spring or during the period of active growth of weeds. The solution can be poured into the tank of a fine dispersion sprayer.

First, in a small container, a masterbatch is prepared from a certain amount of herbicide, calculated on the cultivated area. The sprayer tank is half filled with water, the agitator is turned on and the mother liquor is poured. Then the container is filled with liquid to the required volume.

Precautions for use

Magnum is not toxic to humans, however, precautions must be followed when preparing the solution and while working with the herbicide mixture. Do not inhale vapors or drink the herbicide dissolved in water. Processing should be carried out in a respirator, protective suit. After working with the herbicidal composition, you need to wash your face and hands with warm water and soap, rinse your mouth with soda solution.

Phytotoxicity

Herbicide has selective activity. Phytotoxic to weeds. Does not show toxicity to cereals and flax. Can destroy sunflower, buckwheat and vegetable crops.

Possibility of resistance

The drug may show resistance only after 3-5 seasons of continuous use.

To prevent addiction, it is advisable to use Magnum alternately with herbicides of other chemical classes.

Compatibility

To prepare the mixture during the processing of grain crops, in addition to Magnum, you can use other herbicides: Demetra, Ballerina, Zernomax, Eraser Extra, Herbitox. On plantings of flax, the drug can be used with such chemicals: Gerbitoks, Lontrel-300, Zellek-Super, Miura.

The herbicide is used on non-cultivated soils in conjunction with the Tornado herbicide. When preparing the working mixture, Magnum is first poured into the sprayer tank.

Terms and conditions of storage of the drug

In a tightly closed or unopened original packaging, the herbicide does not lose its characteristics for 5 years from the date of manufacture. The drug must be stored in a special room designed for pesticides. The optimum storage temperature is 5-25 degrees above zero. The herbicidal solution must be completely used up on the day of preparation. With longer storage, the mixture loses its properties.

Similar products

On sale you can find other herbicidal preparations based on the substance metsulfuron-methyl. For example, Terramet, Laren Pro, Grench. These selective herbicides are used to protect crops from weeds.

Recommended