#$%^&*AU2019216712A120190905.pdf#####ABSTRACT Tankmix additive concentrates containing a surfactant and a petroleum derived paraffinic oil and the use of aqueous pesticide spray mixtures incorporating such tankmix 5 additive concentrates are described. The tankmix additive concentrates described herein include from 0.5 to 50 weight percent of a polymeric surfactant, a anionic ester surfactant, a nonionic surfactant, or mixtures thereof, and from 1 to 95 weight percent of a petroleum derived paraffinic oil. The tankmix additive concentrates form a stable emulsion upon dilution into a pesticide spray mixture.