The present invention is directed to an adjuvant premix composition for use with plant treatment chemicals. The adjuvant premix composition includes a thickener, a water soluble divalent salt, a foam control agent, a complexing agent, and a film forming agent. The present invention also relates to adjuvant compositions for use with plant treatment chemicals, plant treatment chemical formulations, methods of treating plants or plant seeds using the compositions of the present invention, and methods of treating a plant seed or growing plant using a plant treatment chemical and a coating material.