Herbicide from weeds

Herbicides are chemical preparations, the purpose of which is to destroy weeds. They are used mainly for chemical weeding of agricultural crops. In the herbicide from weeds, there can be either one or several active substances.

Kinds of herbicides against weeds

Today there is a wide selection of herbicides, they can be classified according to the following characteristics:

1. By the nature of the effect on weeds:

• systemic - penetrates into the weed and spreads with a current of fluid in its organs, as a result, there is a general oppression of the whole plant down to the root system, regardless of its development;
• contact - act only on that part of the plant, on which the composition has got, penetrates into the plant to an insignificant degree.

• continuous action - not only weeds are killed, but all cultural plants are also used in the presowing period and in non-agricultural areas;
• selective action - are used to destroy certain groups of weeds in order to protect the culture.

• leaf - penetrate through the ground parts of the plant;
• soil (root) action - penetrate through the seedlings and roots, they need to be introduced into the soil before the appearance of weeds;
• combined penetration.

• pre-emergence - are introduced before or after sowing of the crop, the weeds die at the moment of germination;
• post-emergence - are introduced after emergence of weeds and cultivated plants, are used on cereals.

• herbicides from grass weeds - destroy grass weeds in cereals and dicotyledonous crops;
• protivodivudolnye - destroy broadleaf and dicotyledonous weeds in crops of dicotyledonous and cereal crops.

The best herbicides from weeds

Starting the fight with weeds herbicide, you need to understand how important it is to destroy all without exception weeds, or it may be necessary to take out dandelions without touching lawn grass. The best representatives in their categories are the following drugs:

• "Tornado" - has a continuous action, ideal for presowing clean the site;
• "Agroquiller" is a herbicide of continuous action, which fights against the most malignant weeds such as wheatgrass and horsetail;
• "Lazurite" - selective poison for processing potato plantations , does not damage culture;
• "Lontrel-zood" is an selective herbicide for strawberries and lawns against perennial dicotyledonous weeds.