Tankmix additive concentrates containing a surfactant and a petroleum derived paraffinic oil and the use of aqueous pesticide spray mixtures incorporating such tankmix 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.描述含有界面活性劑及石油衍生的石蠟基油之桶混添加劑濃縮物，以及併入此等桶混添加劑濃縮物之水性農藥(pesticide)噴霧混合物的用途。本文所說明之桶混添加劑濃縮物包括由0.5至50重量百分比之聚合型界面活性劑、陰離子酯類界面活性劑、非離子性界面活性劑，或是其等之混合物，以及由1至95重量百分比之石油衍生的石蠟基油。該桶混添加劑濃縮物在稀釋至一種水性農藥噴霧混合物內之後，立即形成一種穩定的乳化液。
