I haven't had rust (yet?) in the 2 years that I grow Daylilies, so I don't know much about it...
Is it like flu, new strains emerging over time?
Do I understand correctly that rust is relatively new in the USA?
That must have been a shock...
I guess that from the DL's before that time it isn't known whether they are rust-resistant.
How is the susceptability determined? Is someone 'out there' doing official tests or can everybody who has a certain DL in their garden enter their findings in the database and alter the ratings for that plant?
If so, wouldn't that make the ratings very subjective..?
The fact that there are different strains and that a DL may be susceptible for one strain but not a / all others (that is correct, right?) must also be very frustrating
Mayo
