Byron: All I can tell is that they have a fungus - and extension agrees with me. I'm treating with chamomille tea, copper (sigh), and less moisture, more movement of air, and somewhat less crowded conditions. For tomatillos - and for the tomatoes and peppers - I've been feeding, occasionally, with fish emulsion. Thanks to *everyone* who tried to help me with my pepper problem! The problem looks like it is in remission, but I'm still on my guard!! Robert.