Nicosulfuronis a sulfonylurea herbicide for maize and forage maize in particular,Nicosulfuron is a broad spectrum herbicide that controls a wide range of maize weeds, both annual and perennial weeds. Nicosulfuron is a systemic selective herbicide, displaying genera-selectivity, therefore ensuring it is effective at killing other plants growing near the maize - even those grasses closely related to maize.