Regalia Rx is a liquid biofungicide for use on ornamental plants and edible crops. Applied to actively growing plant tissue, Regalia Rx will induce plant resistance reactions to certain diseases in the treated area. It can be applied as a foliar spray alone or in combination or rotation with other registered crop protection products.

Because the mode of action is dependent on plant-specific resistance reactions, activity of the product may vary among different crop species and varieties and should only be applied to crops listed on the label.