Tree dying??

Asked September 30, 2017, 5:29 PM EDT

I am wondering if my cedars are dieing (maybe a parasite) or if the orange / brown color is normal flagging. This one is the worst. I have others that have the same problem but not as severe. Thanks for your help.

Clackamas County Oregon

3 Responses

Thanks for your question about your cedar trees. The pictures certainly are helpful to see the pattern of the disease, but it would be even more helpful if you can take some close-up pictures of the foliage of one or more of the trees' needles to determine whether there might be a fungus, or whether the browning is occurring due to drought or other weather stress.

Here's a link to a general Extension article on the subject, which might be helpful to you. If you'd like to submit more information, I'll try to be more specific. Thanks!

Here are some close up of the needles of the most severely effected tree

Thank you for your additional photos. As the cedar flagging article I referred you to indicated, there appears to be a pattern of the old growth turning brown, while most of the new growth appears healthy (or at least healthier!) There is really no treatment nor cure for this, absent some pathogen (bacteria or fungus) that isn't apparent from any of the pictures. Your trees are going to have far less foliage in the future, but the only help you can give them, as the article recommends, is more summer watering and no disruption of the plants' roots. Good luck!