PURPOSE: To obtain a herbicide composition capable of controlling a wide range of weeds in a lawn, showing an excellent synergistic effect and high herbicidal activity with a small amount, by using both a specific triazine derivative and at least one compound selected from a specific compound group.

CONSTITUTION: This herbicide composition comprises both a triazine derivative of formula I [A is a group of formula II (Z is O or S) or formula III (X2 is methyl or F; n is an integer of 0-2)] and at least one compound selected from a group consisting of 2,4-dinitro-N3,N3-dipropyl-6-trifluoromethyl-m- phenylenediamine, S,S-dimethyl-2-difluoromethyl-4-(2-methylpropyl)-6- trifluoromethyl-3,5-pyridinecarbothioate, 3-chloro-5-(4,6-dimethoxypyridin-2- ylcarbamoylsulfamoyl)-1-methylpyrazol-4-carboxylic acid, [(3,5,6-trichloro-2- pyridyl)oxy]butyric acid, 2-(1-naphthyloxy)-N,N-diethylpropionamide, etc.