Abstract: Spray oil compositions for controlling post-emergence weeds comprising a non-phytotoxic paraffinic oil and an herbicide selected from the group consisting of cyclohexyl-3-trimethylene-5,6-uracil; 1-n-butyl-3(3,4-dichlorophenyl)-1-methyl urea; 5-amino-4-chloro-2-phenyl pyridazine-3-one; and 3-methoxycarbonyl amino phenyl-n-(3-methyl phenyl)-carbamate.