Chlorimuron ethyl is widely used as a selective herbicide in agriculture, primarily for controlling broadleaf weeds and certain grasses in crops such as soybeans. It is effective in post-emergence applications, targeting weeds that compete with crops for nutrients, sunlight, and water. The chemical works by inhibiting the enzyme acetolactate synthase (ALS), which is essential for weed growth, thereby stopping their development and spread. Its use helps improve crop yield and quality by reducing weed pressure. Additionally, it is often applied in combination with other herbicides to enhance its efficacy and manage herbicide-resistant weed species. Proper application timing and dosage are critical to minimize potential crop injury and environmental impact.