A a low-foaming, non-ionic type spreader adjuvant. ACTIVATOR 90 provides quick wetting, more uniform distribution, and increases retention of spray by reducing surface tension of the spray droplets. ACTIVATOR 90 is a water soluble adjuvant that may also be used as an interfacing agent for wettable powders. Variations in conditions of use can cause some variation in the amount of ACTIVATOR 90 required. The minimum required to give a smooth, uniform coverage usually gives the most effective results.