Garden Pests and Diseases: Dying Viburnum, 5 by thyme4jb

thyme4jb wrote:
I have four 20+ year old Viburnums. Two have already died, and the others look rather iffy. Is there a general herbicide I can use to spray on them to eliminate any bugs that might be doing the damage? I have pruned them from time to time and put pruning sealer on the larger branches that are removed. I tried spraying neem and it seemed to help for awhile. Not sure what is going on. They are some of my favorite plants and would be a huge loss.

The first picture is of one of them in bloom, March 2011. The second picture is of the same one now, same area of the bush, August 2013. The others are of the full bush/tree. They are struggling.