ArborVitae, turning brown, dieing ?

earthworm(6 Pennsylvania)July 11, 2009

One tree seems to be dieing, starting at the top 1/3 .

She is about 8 feet tall, the others are about the same.


I love my ArborVitae...the emerald green absolutely easy to care for, never water, never fertilize any of them...Now they are 7 to 9 years old, and all but the one are very healthy.

Info is so hard to find...good info

And BTW, this tree had some baby cones, but the others, I see no cones...

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earthworm(6 Pennsylvania)

Our Arborvitae is aka Thuja Occidental.
Info seems to be scarce...not a word about "dieing" or browning - and I know this happens.

    Bookmark   July 13, 2009 at 12:09PM
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I would check for bagworms first. If there are no cases , then look for other pests.

Could one tree be planted too deeply or be located in a site that is too wet?

Link has pest and disease problems at the bottom of the page.

Here is a link that might be useful: pests and diseases

    Bookmark   July 17, 2009 at 8:23AM
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earthworm(6 Pennsylvania)

Thank you, Carol, for the response and the link.
The tree in question is at the rows end next to a Rose of Sharon...and all of their Japanese Beetles..
I'm thinking of pruning off the brown 40% of the tree...I must do something..

    Bookmark   July 17, 2009 at 8:40PM
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