The disease that killed one of my Judd viburnum last year is now killing another. After flowering, which seemed normal, the edges of the leaves on some branches started to curl up. Then the leaves turned brown, and the branch died. The disease moved from branch to branch until the shrub was dead.
The same symptoms appeared this year on the shrub next to the one that died. I had 4 shrubs. Can this be treated? If so, how?