TVC Total Vegetation Control Nonselective Herbicide For Woody Brush Trees Weeds Not For Sale To: CALIFORNIA 27.8% Isopropylamine Salt of Imazapyr TVC Imazapyr is for use in non-cropland areas including railroads, utilities, pipelines, highways, industrial plants, petroleum tank farms, oil fields, pumping installations, fence rows, storage areas, range lands, and homes.