Steve and Jill Klein Matthiasson: Their unique viticulture/wine dream fulfilled in Napa

Two years ago VitiSeal gained registration. [Steve] calls it "a game changer" because it is organic and can be applied in a spray. It isn't a fungicide, but sealer that creates a resistant barrier against wood diseases. It can also be painted. It offers a full spectrum of protection against trunk diseases. "It is an easy material to work with," he says, "and more growers are starting to use it, although it is expensive.