Agral 90 is a non-ionic liquid, wetting and spreading agent which can be mixed with any spray without affecting its chemical properties. It aids the wetting of waxy leaf surfaces, insects and fungi and by spreading the spray more evenly over the leaf surface and hence improving the efficacy of the spray.

It works by lowering the surface tension of water droplets in the spray and this ensures the formation of a continuous film either on the leaf surfaces or insect bodies that are waxy and difficult to wet. Agral 90 also helps to ensure thorough washing out of spray machinery.