Arborvitae and green giant turning greyish
Hey guys! I am having some problems with these two types of tree. I have about 15 of each planted. 3 of the green giants are showing brown leaves and some greyish ones too while the others look perfectly fine. 1 of my arborvitaes looks horrible as you can see in the picture, and a couple of the others are showing just a few branches that have that greyish color. However, on the arborvitaes as you can see in the pictures, the underside of the leaves are still green. Any ideas what is causing this or what I should do? I would really appreciate the help!