Herbicide combinations comprising an effective amount of components (A) and (B) have improved herbicidal action wherein (A) is one or more herbicides of the formula (I) or salts thereof in which R1 is (C1-C8)-alkyl, (C3-C4)-alkenyl, (C3-C4)-alkynyl, or (C1-C4)-alkyl which is mono- to tetrasubstituted by radicals selected from the group consisting of halogen and/or (C1-C2)-alkoxy, R2 is I or CH2NHSO2CH3, R3 is methyl or methoxy and Z is N or CH and (B) denotes one or more herbicides which act selectively in some monocotyledonous crops against monocotyledonous and/or dicotyledonous harmful plants, which herbicides are selected from the group of compounds consisting of flucarbazone, BAY MKH 6561 (procarbazone), florasulam, halosulfuron, tritosulfuron, picolinafen, cinidon-ethyl, mesotrione, metosulam, clopyralid, flufenacet, flumetsulam, flupoxam, prosulfocarb, flurtamone, aclonifen, hexazinone, asulam, diuron, ametryn, isoxaflutole, amicarbazone and trifloxysulfuron.