Containing flazasulfuron, butachlor dithiopyr mixed with the herbicide

The present invention discloses a method comprising flazasulfuron, dithiopyr butachlor herbicide mixed with the herbicide flazasulfuron, dithiopyr and butachlor as the main active ingredient, wherein piperidine ethyl, butachlor dithiopyr with a mass ratio of 0.1 ~ 80: 0.1 ~ 80: 0.1 ~ 80. The present invention can be applied early postemergence and preemergence grass weed, especially the application of a variety of grasses, broadleaf weeds and sedge, the effect is significant in controlling the lawn. The present invention has a high synergistic effect, delaying resistant weeds, broad herbicidal spectrum, long duration, and the lawn with security, the effect is significantly higher than the single agent.