Cypress Trees
Q.

Large planting of Russian Cypress on hill side — large dead, browned-out areas and continued destruction. pls help.

Zone 18014 | Anonymous added on August 6, 2019 | Answered

Rusted/brown out in my large landscaped hillside and continues. What is happening,  what can I do? I have cut out dead areas, but continues to kill off more. Please help.

A.
A.Answers to this queston: Add Answer
GKH_Susan
Certified GKH Gardening Expert
Answered on August 7, 2019

The problem with evergreens is that by the time damage can be seen in the foliage, it has been months maybe a year since the problem started. General information is that Russian cypress are known to be relatively free of common pests and diseases, although root rot is mentioned in some of the literature. They do like consistent moisture. Was there a dry spell last summer? What changes have taken place from the normal conditions?
You may consider having a local certified arborist inspect and provide diagnosis.

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