Abstract: An agricultural mower having a crop cutting rotor that is rotatable about an upright axis and cuts a strip of crop along a cut edge of the crop so as to emerge laterally from said cut edge, and a crop guide that is located adjacent the periphery of the rotor where it emerges from said cut edge of the crop so as to support the crop upright at said edge while it is cut. The guide thereby avoids leaving any uncut lines of crop caused by the rotor pushing crop aside at a cut edge in the crop where it is unsupported by adjacent standing crop. The invention is particularly applicable to a mower with two or more cutting rotors that are rotatable in the same sense about respective upright axes alongside one another with one rotor offset rearwards relative to the other so as to cut crop adjacent a cut edge left by said other rotor, the crop guide being located adjacent the periphery of said one rotor to support the crop along said edge.