Crozer herbicide is a post-emergence selective herbicide for corn, offering broad-spectrum control with complete crop safety. It belongs to the phenylpyrazolyl ketone family of herbicides. Crozer works by inhibiting the enzyme 4-hydroxyphenylpyruvate dioxygenase (HPPD), resulting in the bleaching of foliage, cessation of growth, and ultimately the death of weeds. It provides effective control over both narrow and broadleaf weeds.