Stalker Herbicide is a versatile, broad-spectrum brush control product that is specifically formulated to be mixed with water or a penetrating oil and applied as a basal bark, cut-stump, injection or cut-stubble treatment.Active Ingredients: Imazapyr 27.6%Herbicide Mode of Action: Group 3EPA Signal Word: CAUTION / PRECAUCIONEPA Registration Number: 241-398Application Rate Range: (see label) Container Size(s): 1 Qt.