Leland Cypress trees turning brown.

Asked September 21, 2015, 3:24 PM EDT

My 25 year old Leland cypress trees started turning brown this spring with only a few branches involved. They have continued, truning almost entirely brown through the summer. Is this condition likely to spread to other nearby species, and is there any help for the leand cypress?

Mercer County West Virginia

1 Response

Many leyland cypress were impacted by our past cold winter and displayed winter damage in varying degrees this spring. An unusually cold winter can take their toll on these minimally hardy trees. All you can do is prune out dead plant material. Scratch the branches with your fingernail and look for green tissue. If you see it, the branch is still viable.
There are also several insects and diseases that can impact Leyland cypress, not to mention problems caused by improper planting, root damage and other abiotic problems.
You can send us digital photos for more information. Send photos of the whole tree, around the base, and affected branches.
For an onsite diagnosis regarding the health of the trees contact a certified arborist http://www.treesaregood.org/ mh