Question
We have a wall of Leyland Cypress and I noticed some are getting brown spots and not very looking good. There are no visible cankers,just very brown parts of the tree. Any suggestions on stopping what ever is going on ? Please help !  

Answer
Craig,

There are a few fungal cankers that will cause die back on the plants, however, without seeing them it is nearly impossible to positively identify the culprit. I would recommend calling a certified arborist in your area to look at the plants anddiagnose them first hand.

Good luck,
Ed Gulliksen