Why do some of the trees in the field look yellow? Are they dead?
No, the trees that look yellow are just as healthy as the ones that are dark green. The difference is that pines naturally lose their dark green color in the winter when the days become shorter and the tree produces less chlorophyll. For that reason, Scotch, Norway, and White Pines are sprayed with a dark green colorant during the summer to preserve their “evergreen” color for Christmas. Other varieties, like firs and spruce retain their dark evergreen color all year round.
