[ATTACH][/ATTACH]I am a windowsill grower in Massachusetts. My most recent problem is a geographic pattern on a Blc Toshie's Magic which I have had for almost two years. The current problem has been present for about 2 months. It is only visible on the underside of the leaf.
Thanks to everyone who replied. I have decided to discard the plant to try to prevent similar problems in other plants. Thanks again.