As I mentioned above, I don't think it should be possible to change from susceptible to resistant. Apparent resistance cannot be determined from one observation in one garden but susceptible is susceptible (unless it was a plant with the wrong label) although the level of susceptibility can vary. I'm trying to figure out which study/ies gave it the numerical rating but it might take me a while to find it since it didn't come up on a simple search of my laptop files. The numerical rating of 1.1 implies it did show some rust in the study/studies that rating came from. It would be much better if the database could show multiple rust reports per cultivar rather than just last past the post.
Edit: Well in the U of Arkansas ratings it came out in both years as very resistant with a score of 1 (no pustules). Still haven't figured out where the .1 on ATP came from yet. Now the Arkansas study was over two years, 2001 and 2002. It's now known there is more than one race of daylily rust and it could be resistant to one but not another. I'll keep trying to find the .1!
