Herbicidal compositions and methods of controlling undesirable vegetation using a combination of (a) isoxaben, (b) aminopyralid or an agriculturally acceptable salt or ester thereof, and optionally (c) flufenacet and (d) diflufenacet provide control of broad-leaved weeds. The protection of crops from weeds and other vegetation which inhibit crop growth is a constantly recurring problem in agriculture. To help combat this problem, researchers in the field of synthetic chemistry have produced an extensive variety of chemicals and chemical formulations effective in the control of such unwanted growth.
