Cedar Trees

Why Does Emerald Cedar Turn Black?


g3joeman added on September 19, 2016 | Answered

Why does my emerald cedar turn black as shown in the picture?


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ANSWERS
Alisma
Certified GKH Gardening Expert
Answered on September 20, 2016

Root rot or a fungal disease are the most likely culprits. Overwatering or high rainfall could contribute to this, especially if water frequently gets on the foliage.

https://www.gardeningknowhow.com/plant-problems/disease/root-rot-in-garden-plants.htm

Keep the area around the cedar clean and free of fallen leaves. Once spring comes, prune off the blackened parts and dispose of them away from the garden.

Another possibility is sooty mold:

https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

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