Interesting, Sue.
I'd imagine rust could also be carried from one plant to another by the gardener.
I read it can be carried by wind, but don't have that source right now.
Some of my plants were side by side with the rusty ones, but didn't get impacted so much.
What do daylily sellers do when they get rust? Do they soak plants prior to shipping?
Would a 10% bleach solution be adequate to help prevent rust from being shipped (after plants had been treated with a systemic and looked clear of rust)
If we keep stopping or preventing rust, will daylilies ever develop resistance of their own?
For sure, it makes poor flowers look a mess.