2 years ago I had a 7' Norway Spruce put in and it has never given me much trouble. A few weeks to a month ago, I noticed that the very tip of the tree was turning brown and starting to die. The browning is slowly creeping lower and lower.
It hasn't been particularly hot or dry here yet this summer and I didn't notice any signs of bugs or fungus, but it may be that I just don't know what to look for. There are two other Norway Spruce to either side about 6 feet apart that are doing fantastically so I'm a bit at a loss.
Other than upping the watering (I've been soaking 2-3 times a week, but there doesn't seem to be any improvement), what can I try or look for? Any suggestions would be greatly appreciated!
EDIT: Adding more pictures