I received an e-mail this morning from a friend who grows iris. She had been doing some spring clean-up in her iris and found some where the fan on the mother rhizome was yellowed but the increase were green. When she grasped the yellowed fan it pulled off easily and the remaining rhizome looked corky and tannish in color. The roots came up easily. The increase were well rooted. It seems like there was an article in one of the threads recently about different types of rot but I haven't been able to find it. Any help? I think I experienced this once a few years ago and cleaned out the old rhizome and drenched the remaining plant parts with Bayer Advanced 3 in 1 Formula and it corrected the problem. The increases continued to grow. Any one with practical experience with this?
