Carfentrazone-ethyl is widely used as a post-emergent herbicide in agriculture to control broadleaf weeds in various crops such as cereals, corn, soybeans, and rice. It is particularly effective against weeds that have developed resistance to other herbicides. The chemical works by inhibiting the enzyme protoporphyrinogen oxidase, leading to the accumulation of toxic compounds in weed cells, which causes rapid desiccation and death. It is often applied in combination with other herbicides to enhance its efficacy and broaden the spectrum of weed control. Due to its fast action and low use rate, it is a preferred choice for integrated weed management systems, helping farmers maintain crop yields and reduce weed competition. Additionally, it is used in non-crop areas like industrial sites and turf management to control unwanted vegetation.