Aqueous pesticide concentrates containing a pesticide, a surfactant, and a petroleum derived paraffinic oil and the use of such aqueous pesticide spray mixtures incorporating such concentrates are described. The aqueous pesticide concentrates described herein include from 5 to 90 weight percent of a pesticide, from 0.1 to 20 weight percent of a surfactant, and from 0.1 to 20 weight percent of a petroleum derived paraffinic oil. The pesticide is an auxinic herbicide selected from the group consisting of a water soluble salt of 2,4-D, a water soluble salt of triclopyr, a water soluble salt of dicamba, or a mixture thereof. The aqueous pesticide concentrates described contain a pesticide, such as a water soluble salt of a herbicide, and form a homogeneous liquid that forms a stable emulsion upon dilution into a spray solution.