Herbicides have long been proven to be an effective and effective tool for controlling weeds in a garden or vegetable garden.
And although there are exceptions, no gardener can do without these “medicines”.
"Granstar" is among the most popular herbicides.
- Active ingredient and preparative form
- What weeds are effective against
- Drug benefits
- Mechanism of action
- When and how to process
- Storage conditions
- Manufacturer
Active ingredient and preparative form
Its effect is a drug due to a special substance - Tribenuron methyl in a proportion of 750 g / kg. It belongs to the class of pesticides that have post-harvest selective action. In its pure form is presented as white crystals, has a rather sharp smell.
The drug is presented in the form of water-soluble capsules, which include the active substance itself and homogeneous granules, which began to be added to it only in 2009.
Such a tool is produced in plastic cans of 100 or 500 g. Now it is very common to forge an original product,therefore, when buying a product, be sure to pay attention to the presence of a special holographic sticker that will help to distinguish the original from the fake.
What weeds are effective against
Granstar helps to fight one-year weeds (for example, a tenacious bedstrip), and its most effective action is manifested in the early stages of the parasite's development. But he can also get rid of perennial weeds, as he penetrates the very roots of a plant through its leaves.
Among the one-year dicotyledonous weeds, with which this remedy helps to fight, are distinguished:
- nightshade;
- shepherd's bag;
- thyroid gland;
- woodlouse;
- mustard field;
- wild radish and others
Drug benefits
Many gardeners and gardeners choose "Granstar" for such reasons:
- The drug effectively acts alone and helps to fight even the most difficult to control weeds.
- The use of such a herbicide can be carried out in a fairly wide period: from the first appearance of two leaves to the formation of the flag leaf of the plant.
- "Granstar" is very convenient and easy to use, the dose of application is very small.
- The drug can be used from the earliest time, when the air temperature warms up to +5 ° C.
- It has a very fast action, its active substances stop the growth of parasitic plants after a few hours after application, and after a couple of weeks completely destroy them.
- If after 3 hours after the rain fell, even under these conditions, the effectiveness of the herbicide will not become worse.
- Such a drug is completely non-toxic, respectively, will be safe for other crops, animals and insects in your garden or garden.
Mechanism of action
Herbicide "Granstar" immediately after introduction gradually begins to penetrate through the leaves of the plant in its stems and rhizomes. Herbicide actives block the enzyme acetolactate synthase, which is responsible for weed growth. Plant cells, which are sensitive to the action of this agent, slow down in division. Soon the plant dies.
The process of stopping the growth and development of weeds is accelerated when the weather is hot and humid, but when it is dry and cold, on the contrary, it slows down.
Tribenuron-methyl-based preparations are not only used for weed control. For example, the Granstar herbicide is used for the rapid development of sunflower and the implementation of SUMO technology. Remember that it is necessary to make such substances during periods when the sunflower is not under stress, does not tolerate excessive moisture or dryness.
After processing the drug, some varieties of sunflower can change color or stop a little in growth. However, this phenomenon is absolutely normal, and soon the sunflower is restored and even begins to grow faster.
When and how to process
Spraying is recommended to be carried out only in dry, windless weather, while adding Trend-90 surfactants to keep its substances longer and better on the leaves of weeds.
Instructions for use are very simple and do not require a lot of complex actions: add the capsules of the Granstar herbicide to clean water and then spray the weeds, observing the necessary distance.
If you are struggling with annual dicotyledonous weeds, as well as with field thistle on wheat, barley and oats, the consumption rate should be 0.020-0.025 l / ha. Treatment in this case must begin in the early stages of weed development or at the beginning of tillering of the crop.
The consumption rate of the prepared solution of the Granstar herbicide is 200-300 l / ha during spraying on the ground and 50-75 l during aeronautical processing.
Storage conditions
It is necessary to store the drug in sealed conditions, which are intended for storage of pesticides, at a temperature of from 0 to +30 ° C.Guaranteed shelf life is 3 years.
Manufacturer
The manufacturer of the drug is a well-known company "DuPont" (USA). It has long established itself as a quality and responsible manufacturer. Moreover, in 2009, this corporation received the "Agrow" award for innovations in its inventions.