Lilies: Doeths anyone have any idea what this is?, 1 by yehudith

yehudith wrote:
Does anyone have any idea what this is? Its only on the yelloween's. It took hold without me noticing because I've been so involved with packing and all for the move. I'm scared its going to spread to my other lillies in that bed. I don't have any bugs, just these horrible spots and yellowing. There are irisis in that bed, planted last fall and the tops of the leaves look like they've been spray painted a rusty yellow. Never saw that before.