Hey TreeGuy - THANK YOU! For such a quick and helpful reply! Yes, I think it probably is a Blue Atlas Cedar. But as to it's problem I can't say it has flooded here. It is Oregon and we get rain - but this year seemingly no more than years past, and it is at the top of a hill where there's good drainage. But there is perhaps across 30% of the ends the browning of the needles you see in the picture. Some lesser browning is midway on a branch. Where is is brown the needles are completely (as in dead) brown. As I say, haven't ever seen this before in 3-years. I really don't want to lose this fine tree but don't know what the problem is or what I might do about it.

Wow lots of interesting stuff here! I think there are multiple issues here, and, since the health of the plants isn't great, I would deal with all possible problems rather than hunt down one specific one. If it were me I would do the following, since doing them would fix any of the most likely problems that you may be having. I would change the mix to a free draining one. I would check the roots, and pot into a container that is only a little larger than the rootball. I would put them in a partially sunny position after the repot until they get used to their new mix and pot. I would then move to a sunny location once things started to settle. I would make sure the room had plenty of humidity with gravel trays or a humidity. I would make sure the room was warm, and provide bottom heat to the pots if possible. I would inspect for bugs. Mites and scale seem the most prolific - possibly mites in your case. Webbing is a telltale sign, and sometimes hard to spot, but not always present. I would treat with Toni's spray regardless (she can tell you the ingredients, or you can search previous posts.) If you do spot bugs, use Toni's spray or a suitable one for fruiting plants from a garden centre. I would water these (after the repot) only when the new medium was closer to dry than damp. In a new medium you won't have to worry so much over watering - if it is the right medium it is unlikely you will overwater unless you go nuts with it. Fertilize only very lightly until the tree is back to health, then feed with a high nitrogen feed every couple of weeks. Citrus bounce back, but they take time. These are not by any means the be all and end all of things you should do, they are merely what I personally would do :) Danny

Could be a fungus like Vladimir said, could also be an insect egg or just dirt on a bit of fluff. However, I'm more concerned with how dusty the leaves are. I may just be dust or it could be the beginnings of a spider mite infestation. It's a good idea to wash off the leaves from time to time, like maybe every 4-6 weeks. Take them outside and hose them off, or if that's not possible, put them in the shower and shower them off with cool water. Then let them drain well and put them back where they were. It helps prevent spider mites as they're attracted to dusty plants. And your plants love the rinsing off!

Right now it's just 2 posts below this one. If you can't see it then you need to refresh your page or clean out your cache. Dave Here is a link that might be useful: Your first post