Control Efficacy of 15% Nicosulfuron ·Bromoxynil octanoyl against Summer Corn Weeds

[Objective]Control efficacy of 15% Nicosulfuron·Bromoxynil octanoyl against summer corn weeds was explored to provide reference for control of corn weeds.[Method] Control efficacy of 15% Nicosulfuron · Bromoxynil octanoyl against summer corn weeds was studied through plot test.[Result]The product had good effect to control a variety of annual monocots and dicot weeds in summer corn field,and it had wide control spectrum,rapid control effect,and long lasting effects.After 30 days of spraying,the preventing effect reached above 95% for each plant,and fresh weight control efficiency was above 95%.It was safe to summer corn at the dosage of 1 500-3 000ml/hm2.[Conclusion]Considering field conditions,the recommended dosage is 1 800-2 250ml/hm2.