Herbicides are also called weed killers. A chemical that kills weeds or harmful plants without affecting the normal growth of crops. It can be used to control weeds in farmland or kill weeds or shrubs in non-agricultural farmland. According to its action characteristics, it can be divided into selective herbicides and extermination herbicides. Selective herbicides are used in a range of doses and concentrations that selectively kill some species of plants while causing no harm to others.
The commonly used varieties are organic compounds, which can be widely used to control weeds, miscellaneous irrigation, miscellaneous trees and other harmful plants in farmland, orchard, flower nursery, grassland and non-arable land, railway line, river, reservoir, warehouse and other places.