Autumn yellowing of conifer needles a normal process

7

By Ryan Lockwood
Special to The SUN
Although thousands of evergreen trees in the foothills of southwest Colorado are beginning to display dying yellow or orange needles, most are simply going through a natural shedding process — and are not infested by bark beetles or tree disease.

The full version of this story is available in the print edition and e-edition of the Pagosa Springs SUN. Subscribe today by calling (970)264-2100 or click here.