Hi, I've just discovered the gardeners list and I'm jumping right in with a plea for help. I'm growing some tuberous begonias in a sheltered spot that gets filtered sun for a couple of hours a day. They are in window box type containers and are blooming very well. My problem is an unattractive mold/mildew which has developed on the leaves of several of the plants, no doubt due to the humid climate here in Maryland. In the beginning I tried wiping off the leaves, and when there is some breeze, I move the containers to a spot where they can get more ventilation. I don't seem to be making any progress. Can anyone offer any suggestions for a cure? Thanks, Pat Zone 7, Maryland