Herbicides have long been proven to be an effective and effective means for weed control 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
Its effect of the drug is 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 pungent odor.
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 fake the original product, so 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.
Herbicides also have a selective effect: Totril, Extra eraser, Lapis lazuli, Zenkor, Grimes, Fabian, Lancelot 450 WG, Corsair, Dialen Super, Hermes, Caribou, Pivot, Callisto.
What weeds are effective against
Granstar helps to fight one-year weeds (for example, a tenacious bed-bed), 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 splay;
- lice;
- mustard field;
- wild radish and others
Important! Use this drug at the stage of sufficient development of the weed - for example, in the phase of the outlet or at the beginning of stealing.
Drug benefits
Many gardeners and gardeners choose "Granstar" for such reasons:
- The drug effectively acts alone and helps 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 such 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.
Did you know? A living carrier of herbicides is a special kind of "lemon ants". They inject citric acid into the shoots of all types of shrubs and trees, except fool, which is resistant to their effects. As a result, in the Amazonian forests there is such a phenomenon as “the gardens of the devil”, that is, such areas where only this type of trees grows.
Mechanism of action
Herbicide "Granstar" immediately after the 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 that are sensitive to the action of this agent are slowed 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 you need to make such substances during periods when the sunflower is not under stress, does not tolerate excessive moisture or drought.
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.
Did you know? In the CIS countries, sunflower got its name due to the unique ability to turn its open inflorescences toward the sun. This is also called heliotropism.
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 many 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 when sowing wheat, barley and oats, the consumption rate should be 0.020-0.025 l / ha. Processing in this case should be started at 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. 
Important! When spraying, be sure to ensure that the preparation does not fall on a number of growing crops. It should also not be used in the presence of moisture on the leaves of weeds.
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.
Many weeds can be beneficial for humans; wheatgrass, dodder, amaranth, dandelion, sow thistle, cornflowers, thistle, quinoa, nettle are widely used in folk medicine.As you can see, the Granstar herbicide is an indispensable tool for your vegetable garden. Thanks to the systematic and deeply selective action, he is able to quickly and effectively deal with annual weeds, destroying them in the shortest possible time, but without affecting the crops of crops.
