The present invention relates to a herbicide mixture having a synergistic action, and more particularly, to a synergistic herbicide mixture including:
diquat dibromide and nonselective herbicide; a herbicide composition including the herbicide mixture as an
active ingredient; and a
weed control method using same. The herbicide mixture of the present invention is characterized in that
diquat dibromide and
glufosinate ammonium are mixed at a certain ratio, thereby showing 80% or more of a herbicidal effect on various weeds and plants, and a herbicidal activity lasting at least 30 days, as well as a rapid herbicidal activity of 6 to 23 hours (within one day), on average, on a
road surface on which an average actual
light irradiation is actively performed. Thus, the herbicide mixture has an
advantage in that a synergistic effect is obtained during use (which cannot be expected to compare the case of a single
drug in which
diquat dibromide and
glufosinate ammonium are separately used). In particular, due to a difference in the action mechanisms of diquat dibromide and
glufosinate ammonium, diquat dibromide, at the same time, allows for
drug efficacy following treatment to be promptly exhibited, and
glufosinate ammonium allows for weeds in shaded areas without sunshine to be removed. Further, since the combined
drug has a duration of
efficacy of at least 30 days, as well as a fast-acting property exhibited within a day
after treatment, after one control application, there is no need to use a herbicide for a long period of time. Thus, the combined drug is effective in reducing the amount of agricultural chemicals that would otherwise be used.