Pine tree needles turning orange
The inside needles on one of my mugo pines are turning orange, that is the best color to describe what is happening. Some of my other pines have from time to time had this, some of the little trees died but some seem to have recovered. Is there anything I can do to make sure it does not spread to my other pines and keep this pine tree healthy. This mugo pine is about 25 years old.
Thanks for any help you all may come up with.
LB in Missouri