Martin's Eraser Max Super Concentrate Herbicide gallon. Eraser Max is ideal for fence rows, gravel paths, sidewalks, driveways, parking areas and around farm building and barns. The concentrated formula of glyphosate and imazapyr is effective against most weeds, grasses, vines, brush and trees. For use on non-crop areas as a spot treatment for brush, vines and weeds or on bare ground for total vegetation control.