Buckthorn attack

Those of you who have been following this blog for a while, have heard me bemoan the invasive presence of glossy buckthorn at the marsh.  I've been noticing recently that the buckthorn has become infected with an orange-colored fungus of some sort, and after some internet searching, believe it to be the crown rust fungus.  Apparently it is a disease of oats, and buckthorn is its alternate host.  I don't know whether it does the buckthorn in, but some of the smaller-sized shrubs certainly look in bad shape.  Apparently the disease is favored by warm and humid weather and mild winters.  Well, last winter certainly qualified as mild.