Emeralds are Browning Need Help

[melaby]

I have planted 27 Emerald Green Arborvitaes a few months ago all at the same time, and half of them are browning, the browning has started from the top working it's way down the tree. Here are some photo's I've attached which may help determine my problem.


Thanks

[Newt]

Hi Melaby,

I'm wondering if you removed the burlap around the rootball or were these in pots?* If there was burlap and twine did it have a green color?* That would indicate it's been treated with copper.* Do you see any webs?* Take a look here to see if any of this fits.
http://www.agf.gov.bc.ca/cropprot/cedar.htm

Newt