Are Your Pine Needles Brown, Red or Purple? It Could be Winterburn.
Information from this article comes from MSU Extension Forester Dr. Peter Kolb.
During dry and cold winters, evergreen trees growing in windbreaks or other exposed areas can be afflicted with needle discoloration that ranges from brown to purple followed by needle drop. Often this is most prevalent on the south side or windward side of the tree. In some cases only last year’s new needles are impacted, and in other cases most of the older needles are disproportionately afflicted. Multiple factors might be interacting with the t...