Q.Leylandii Browning
We have a fifteen foot Leylandii which is suddenly suffering from serious brown patches. Photo attached. I\’d be grateful for any advice on possible causes and treatment? Thank you in advance, Mark
Certified GKH Gardening Expert
Unfortunately, there are a number of blights, so identification may require the assistance of your local extension service or agricultural center.
Here are some articles that will help:
https://www.gardeningknowhow.com/ornamental/trees/leyland-cypress/leyland-cypress-diseases.htm
https://www.gardeningknowhow.com/ornamental/trees/leyland-cypress/growing-leyland-cypress-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/leyland-cypress