Q • One of my arborvitae trees has a problem. It has developed a brown area near the top of the tree that seems to have expanded in late summer. I cannot reach this brown spot unless I use a…
By Chip Tynan Missouri Botanical Garden, St. Louis Post-Dispatch: Living
Sat, 12/10/2016 - 11:00pm
Q • One of my arborvitae trees has a problem. It has developed a brown area near the top of the tree that seems to have expanded in late summer. I cannot reach this brown spot unless I use a…