I am a bit confused.
Aren't there three different aspects of daylily rust that are of possible concern?
1) The spores that can survive winter, the black teliospores, cannot directly infect daylilies. They are not a concern unless they infect Patrinia.
2) The spores that cannot survive winter, the urediniospores, can infect daylilies. However, they presumably are killed either by low temperatures or other environmental factors?
3) The actual rust growing inside daylily leaves, the mycelium. If all the infected daylily leaves die then the mycelium also dies. Is that correct? If infected leaves do not die then is there a temperature at which daylily leaf tissue survives but mycelium within the tissue dies?
