Flucetosulfuron is a selective herbicide primarily used in agriculture to control a broad spectrum of broadleaf and grassy weeds in crops such as wheat, barley, and other cereal grains. It works by inhibiting the acetolactate synthase (ALS) enzyme, which is essential for the synthesis of branched-chain amino acids in plants, leading to the cessation of cell division and plant growth. It is especially effective in pre- and post-emergence applications, offering long-lasting residual control in fields. Due to its low application rate and high potency, it is favored for integrated weed management programs. Flucetosulfuron is often included in tank mixes with other herbicides to enhance spectrum and manage herbicide-resistant weed populations. Its systemic action allows it to be absorbed through roots and foliage, distributing throughout the plant for effective control. The chemical degrades in soil through microbial activity, minimizing long-term environmental buildup, making it suitable for use in rotation systems.