Thanks, Opa--looks like I'm gonna lose the whole bed
I can see the tell-tale signs of "inkbleed" on several others. I have some other non-susceptible stuff (ferns, astilbes) in there, so it won't be totally empty, but... How many years should I wait before replanting w/hostas? Soil replacement is not an option, it's filled w/silver maple roots. I guess quarantining my new stock (in the future) in large pots for a year before planting is the way to go, eh? To make sure the virus doesn't show up. I have alerted my favourite catalogs of the problem, most of them hadn't even heard of the emerald ash borer, let alone HVX. What a pain. Anyway, thanks for the advice, as always.