Herbicides

Herbicides, from the Latin «herba» — grass and «and caedo» — I kill, are chemical preparations (or their compositions) used for the selective or complete destruction of unwanted plants by spraying, pollination and soil application.

By the nature of the effect on plants, there are two main groups of herbicides: continuous, acting on all types of plants, and selective (selective), affecting only some types of plants and relatively safe for others.

Three subgroups of herbicides are distinguished according to external signs of action on plants and methods of application:

• contact herbicides that affect the leaves and stems of plants in direct contact with the drug;
• systemic herbicides — substances that can move through the vascular system of plants. Once on the leaves and roots, they quickly spread throughout the plant, leading to its death;
• herbicides that act on the root system of plants or germinating seeds that are applied to the soil to kill seeds, germinating seeds and roots of weeds.