I wish they had done a more extended study using Dawn detergent, it seems to work in the short term but still, it could seriously damage the plants in the long term according to the report. I wonder the same thing about the Green Magic? I think maybe the same could be said of some of the expensive chemicals also though, don't know how long they have been tried on daylilies so I assume they base how safe they are on how they reacted on other plants they have been used on for longer periods of time.
The first year I noticed any rust I was very zealous with removing the leaves, (the only treatment I knew) it seems to me to actually stunt the growth of the plants, but then again it could have actually been the rust itself that did the stunting, or just a bad daylily year I suppose.
I did use Dawn detergent early in the year two years ago and it seemed to be working(reducing the amount of visible rust) , but I did not have much faith in it and switched to different fungicides, not sure they worked any better.
