Herbicides from weeds of continuous and selective action

Herbicides against weeds allow you to get rid of unwanted plants on the site. Weeds take nutrients from the soil and become a favorable environment for the development of diseases. Which herbicides to choose depends on how they are applied and the type of crop being treated. The soil or the plants themselves are treated with preparations.

Preparations of continuous and selective action

The work of herbicides can be aimed at the destruction of 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 harvest. The rating of drugs of this type is as follows:

• Tornado – the most popular herbicide that can penetrate the stems and leaves of weeds, and then affect their root system. As a result, the synthesis of amino acids stops, and the plant dies. Tornado is used to combat wheatgrass, bindweed, reed. The substance does not accumulate in the soil, so after treatment, you can start planting.
• Agrokiller – herbicide of continuous action, destroying cow parsnip, couch grass, small shrubs. Due to the high concentration of components, Agrokiller effectively copes with vegetation. The drug is applied in spring or early summer. Due to sap flow in the plant, the agent quickly spreads and begins to act. The substance has no soil activity. Plantings can be processed at any temperature.
• Antiburyan – a tool that effectively acts against 300 species of perennial weeds. Antiburyan does not accumulate in the soil and copes with plants during the period of active growth. The treatment is carried out at a temperature 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 disturb the crop rotation.

Selective herbicides work only on certain plants and do not harm other crops. Such substances may have a narrow direction of use, 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 allows to protect potatoes from weeds. The action of the drug is aimed at combating weeds, and there is no harmful effect on planting potatoes. For 1 weave with potatoes, 10 g of Lazurite and 3 liters of water are taken. 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 control agent with 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 ingredients penetrate the leaves and spread throughout the plant. As a result, the ground part and roots of the weed die in 3-4 weeks. The active components do not accumulate in the soil and do not harm strawberries.
• Hacker – a drug that helps to remove weeds in beds with cabbage, beets and rapeseed. After getting on the leaves, the substance passes into the root system. The action of the Hacker begins in 2 hours. Withering of plant organisms occurs after 13 hours. The protective properties of the substance are preserved 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 to the soil or by spraying plants.

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

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

Leaf preparations are used after weeds begin to germinate. After they hit the shoots, the processes that ensure the vital activity of plants are blocked. Effective foliar herbicides are:

• Arsenal – a tool with a continuous effect. It is used on non-agricultural lands for the destruction of 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 herbicide of continuous action, which allows you to protect plantings of various crops. The procedure is performed at temperatures above +12°C. The tool is able to cope with shrubs and small trees. Work with the soil should be carried out no earlier than 2 weeks after the application of the drug. During this time, the substance will reach the root system of the weeds.
• Granstar – a remedy for dicotyledonous weeds, capable of stopping plant cell division. The first results after using Granstar appear after 5 days, the final death of weeds 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, spring crops.

Contact and systemic drugs

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

• Suhovey is a preparation used for processing potatoes, cereals, corn, sunflower. 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. Dry wind dries plants for up to 7 days. At temperatures below +13°C, the effectiveness of the drug is reduced.
• Dinoseb – a means of selective influence. The herbicide eliminates weeds in the beds after the emergence of clover, flax and peas. The product is used on plantations of beans, peas and beans before their shoots appear. Dinoseb has a good effect on annual weeds in the early stages of development.

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

• Buran – a drug that allows you to get rid of weeds, shrubs and reeds. Suitable for processing fields or gardens in the private sector before planting various crops. Snowstorm does not penetrate into plant tissue through the soil. The tool works at a positive temperature. Processing does not disturb the crop rotation process.
• Furore – a herbicide used after the emergence of beets, carrots, rapeseed, cabbage, sunflower. The drug is effective against annual grass-type weeds. The agent 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 into plant tissues. The tool blocks the life processes of plants, which leads to their death. The effect of the use of Roundup appears on the 4-5th day. The tool is used against cereal weeds in plantings with vegetable crops.

Terms of Use

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

• work is carried out in dry weather in the absence of 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 substances can last for 2 weeks, so re-treatment is allowed no earlier than this period;
• processing is carried out after the main culture is sufficiently strong;
• in the course of work, respiratory and skin protection means are used;
• after using herbicides, it is not recommended to visit the site for several days;
• most effectively means cope with weeds in the early stages of development;
• the dosage and order of application must comply with the instructions.

Conclusion

Treatment of weeds with herbicides promotes the growth of staple crops, reduces moisture and prevents the development of diseases. When choosing drugs, the way they act on weeds is taken into account. Planting can be processed before or after germination. The agent may affect the soil or plant organisms. At the same time, the rules for the use of herbicides must be observed.