Black spot in Zone 5
'morning! ^_^ I think some of the hollies (ilex x meserveae, "Blue Prince & Blue Princess") I planted last fall are developing black spot. Aagh! I sprayed them with an anti-desiccant before winter, and wonder if that may have been a contributing factor? In any case, I was hoping for suggestions as how to treat them? Should I spray them with a fungicide? And which one should I use? Thanks!