What is wrong with my Emerald Green Arborvitae? - Knowledgebase Question

Columbia, Mi
Question by rickyballew
February 6, 2009
I planted 6 of these E.G. Arborvitae last summer. I picked 1/2 doz. or so bagworms off. We had phenomenal rainfall all yr. The bottoms of the trees are brown, some black area too, almost tar like. What's happening to them? Insects, fungi, disease, over water? I hope to save them so, what should I do?

Answer from NGA
February 6, 2009


It's really difficult to diagnose a plant problem without seeing it but a tar-like growth sounds like a fungal disease. I'd be inclined to take a sample of the problem to my local Cooperative Extension office for diagnosis and control suggestions. You may be able to save your plants if you act quickly. Best wishes with your arborvitaes!

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:



[ Join now ]

Today's site banner is by Fleur569 and is called "Orchid Cactus "