Metazachlor is widely used as a selective pre-emergence herbicide in agriculture, particularly for controlling annual grasses and certain broadleaf weeds in crops such as cereals, oilseed rape, and sunflowers. It is effective in managing problematic weeds like blackgrass, brome grass, and chickweed, helping to improve crop yield and field maintenance. Due to its soil activity, metazachlor is applied to the soil surface before weed seeds germinate, where it is absorbed by emerging shoots and roots, inhibiting weed growth. Its use is favored in integrated weed management programs where resistance to other herbicides has developed. The solution formulation allows for easy tank mixing and uniform application with standard spraying equipment, enhancing its practicality in modern farming systems.