Wasn't sure where to put this but this is the kind of information that Bonsai enthusiasts should be aware of. Sudden oak death is a very virulent disease that does affect some plants used in the Bonsai community. Of particular note are the oaks of the Western United States and Japanese Larch. Becasue we in our normal bonsai activities obtain plants from just about everywhere it's always important to know the diseases can follow. Being aware of where the diseases are prevalent should be a guide so that the disease doesn't spread. The blow are links to articles about the disease.