Which type of herbicide is used to control all plants and brush in an area?

Nonselective herbicides are designed to kill all types of plants and brush in the area where they are applied. These herbicides work by affecting any green plant tissue they come into contact with, making them effective for controlling unwanted vegetation in various situations, such as before construction or when clearing land.

They do not discriminate between desirable and undesirable plant species, which is why they are often used in situations where a complete vegetation kill is desired, such as in the preparation of a seedbed or to clear an area for maintenance. This broad-spectrum activity makes them a powerful tool in vegetation management but also requires careful application to avoid harming desirable plants nearby.

In contrast, selective herbicides target specific plant species while leaving others unharmed, persistent herbicides remain active in the environment for longer periods, and contact herbicides kill only the parts of the plants that they touch, which can limit their effectiveness against established plants.