Viburnum Have White Spots On Trunks And Leaves Get Dark Spots Then Turn Yellow

Question From: S. Orlando - New Port Richey, Florida, United States
Q: I have a row of fifteen year old viburnum. Notice the north side is fine but the sixth side looks like it is all twig and little leafs. There are these big white spots on the trunk. The leaves tend to look like they are getting dark spots then turning yellow. My neighbor on this side of the bushes has a lawn spray any idea what I should do? 

A: I am not a trained plant doctor, so I do not diagnose these kinds of issues. Also, I live and dig in Michigan - Florida is another world when it comes to gardening. You have a large investment in shrubs so I recommend you get an onsite inspection from a certified arborist in your area. Happy Yardening, Nancy