Herbicides for weeds

Content

1 Continuous and selective action drugs
2 Soil and leaf substances
3 Contact and systemic drugs
4 Terms of use
5 Conclusion

Herbicides for weeds allow you to get rid of unwanted plants on the site. Weeds take away useful substances from the soil and become a favorable environment for the development of diseases. Which herbicides to choose depends on the method of their application and the type of crops being treated. The soil or the plants themselves are treated with preparations.

Continuous and selective action drugs

The work of herbicides can be aimed at destruction vegetation of any kind. Such substances have a continuous effect and are used to completely clean the soil.

Continuous herbicides are used before planting or after harvesting. The rating of drugs of this type is as follows:

Tornado – the most popular herbicide, capable of penetrating the stems and leaves of weeds and then affecting their root system. As a result, the synthesis of amino acids stops and the plant dies. Tornado is used to combat wheatgrass, bindweed, and reed. The substance does not accumulate in the soil, so after treatment you can begin planting.
Agrokiller – a continuous action herbicide that destroys hogweed, wheatgrass, and small shrubs. Due to the high concentration of components, Agrokiller effectively copes with vegetation.The drug is used in spring or early summer. Due to sap flow in the plant, the product quickly spreads and begins to act. The substance has no soil activity. Treatment of plantings can be carried out at any temperature.
Antiweed – a product that is effective against 300 types of perennial weeds. Anti-weed does not accumulate in the soil and copes with plants during the period of active growth. Treatment is carried out at temperatures above 12°C, if there has been no rain for 5 hours. The components of the drug do not accumulate in the soil and do not disrupt crop rotation.

Selective herbicides only affect certain plants and do not harm other crops. Such substances may have a narrow application, for example, the destruction of chicken millet. Some of their varieties are able to protect wheat, rye and other cereals from weeds.

Selective herbicides include:

Lapis lazuli – a herbicide that helps protect potatoes from weeds. The action of the drug is aimed at controlling weeds, and there is no harmful effect on potato plantings. For 1 hundred square meters of potatoes, take 10 g of Lapis lazuli and 3 liters of water. The solution is absorbed by the root system, which leads to the destruction of weeds at any stage of development. The validity period of Lapis Lazuli is up to 2 months.
Lontrel – a weed killer that has a selective effect. The drug is used against weeds growing in strawberries: dandelion, plantain, chamomile, etc. Lontrel is applied by spraying, after which the active substances penetrate the leaves and spread throughout the plant. As a result, the above-ground part and roots of the weed die in 3-4 weeks.The active ingredients do not accumulate in the soil and do not harm strawberries.
Hacker – a drug that helps remove weeds in beds with cabbage, beets and rapeseed. After contact with the leaves, the substance passes into the root system. The Hacker action begins in 2 hours. Withering of plant organisms occurs after 13 hours. The protective properties of the substance are maintained during the growing season. The procedure is not recommended if the temperature has dropped to +10°C.

Soil and leaf substances

Herbicides against weeds can be used in two ways: by applying them to the soil or spraying the plants.

Soil preparations remain on the surface of the soil and create a layer that prevents the growth of weeds. The most common soil types of herbicides are:

Zenkor – a remedy against annual and cereal plants. The drug is used before and after weed growth. Zenkor protects crops for a period of 6 weeks. The product is used to treat plantings with tomatoes and potatoes.
Panther – a drug against annual and perennial cereal weeds (chicken millet, sorghum, wheatgrass). The herbicide is used in beds where potatoes, tomatoes, beets, onions, and carrots grow. The active ingredients penetrate plant tissue within an hour. The first results of using Panther are noticeable after 3 days. Panther is used after the emergence of the main crop.
Aztec – soil-type herbicide against dicotyledonous plants on sunflower and corn plantations. The drug is used immediately after sowing until the crop emerges. Its effect lasts for 8 weeks.The active components decompose in the soil and do not affect the crops grown.

Leaf preparations are used after weeds begin to sprout. After they get on the shoots, the processes that ensure the life of the plants are blocked. Effective foliar herbicides are:

Arsenal - a remedy that has a continuous effect. It is used on non-agricultural lands to destroy cereal plants and shrubs. The drug is used by spraying. Plants absorb the substance within an hour. The effect of its use lasts for several years.
Chistopol – a continuous action herbicide that allows you to protect plantings of various crops. The procedure is performed at temperatures above +12°C. The product can cope with shrubs and small trees. Work with soil should be carried out no earlier than 2 weeks after applying the drug. During this time, the substance will reach the root system of the weeds.
Granstar – a remedy for dicotyledonous weeds that can stop plant cell division. The first results after using Granstar appear after 5 days, the final death of the weed occurs on the 10th day. In warm weather with high humidity, the effect of the product is enhanced. Granstar protects plantings of wheat, oats, barley, and spring crops.

Contact and systemic drugs

Contact herbicides kill vegetation after direct contact with it. After their use, the weed leaves dry out, however, the root system continues to exist. Contact types of herbicides are:

Sukhovey is a preparation used for processing potatoes, grain crops, corn, and sunflowers.Dry wind destroys annual weeds, is resistant to rain and facilitates the harvesting process. An additional effect of its use is the prevention of diseases of potatoes and sunflowers. The dry wind dries out plants in up to 7 days. At temperatures below +13°C, the effectiveness of the drug decreases.
Dinoseb - a drug that has a selective effect. The herbicide eliminates weeds in the beds after the emergence of clover, flax and peas. The product is used on bean, pea and bean plantations before their shoots appear. Dinoseb has a good effect on annual weeds in the early stages of development.

Systemic substances penetrate the weed tissue and completely destroy the plants. The best representatives of such herbicides are:

Buran – a drug that allows you to get rid of weeds, bushes and reeds. Suitable for cultivating fields or gardens in the private sector before planting various crops. Buran does not penetrate plant tissue through the soil. The product operates at positive temperatures. The treatment does not disrupt the crop rotation process.
Furore – a herbicide used after the emergence of beets, carrots, rapeseed, cabbage, and sunflower. The drug is effective against annual weeds cereal type. The product is absorbed by weeds and accumulates in them. When the growth points die off, they stop developing. The first result of using Furore appears after 10 days. Weeds die within 3 weeks.
Roundup – a systemic drug that can penetrate plant tissues. The product blocks the life processes of plants, which leads to their death. The effect of using Roundup appears on days 4-5.The product is used against cereal weeds in plantings with vegetable crops.

Terms of use

The effectiveness of herbicides against weeds largely depends on their correct use:

work is carried out in dry weather with no wind;
useful plants are covered with a film to protect them from harmful effects;
in a flower bed it is better to apply the substance to the weeds with a brush;
the effect of the substances can last for 2 weeks, so re-treatment can be carried out no earlier than this period;
processing is carried out after the main crop has become sufficiently strong;
during work, respiratory and skin protective equipment is used;
After using herbicides, it is not recommended to visit the site for several days;
the products deal most effectively with weeds in the early stages of development;
the dosage and procedure for use must comply with the instructions.

Conclusion

Treating weeds with herbicides promotes the growth of main crops, reduces humidity and avoids the development of diseases. When choosing drugs, the method of their effect on weeds is taken into account. Plantings can be treated before or after emergence. The product may affect soil or plant organisms. In this case, the rules for the use of herbicides must be observed.