Pyrazosulfuron 10% WP is a selective and systemic herbicide widely used for effective weed control in paddy (rice) crops. It belongs to the sulfonylurea group and works by inhibiting the acetolactate synthase (ALS) enzyme in weeds, which blocks the synthesis of essential amino acids required for their growth. As a result, the weeds stop growing and gradually die. It is highly effective against a wide range of broadleaf weeds, sedges, and some grassy weeds. Pyrazosulfuron is typically applied at an early stage after sowing or transplanting to prevent weed competition during the critical growth period of the crop. It requires a low dosage, is safe for the crop when used as recommended, and provides long-lasting weed control, helping to improve overall crop yield.