I hate the rust, but have to spray for aphids and such anyway, I cant imagine ever having a daylily in fl. that you would not have to treat for rust. The bugs are far far more harmful than the rust. Between the snail, thripes and aphids, Ill take the rust, it at least doesnt destroy the bloom. I have thrown many away, thats for sure, some seem like such rust magnets, but they also seem to be the ones that dont increase, so saying goodbye doesnt bother me. Ive thrown many away that people just love and post pictures of, if it doesnt work in this yard, I dont care...its gone.
I do think this is my last year with seedlings, thats were I really have a rust issue. They are small during all of rust season, the rust loves them. As they get bigger, its no so bad, but I just dont have enough sun. Ive got to face it.