Symptoms of Winter Burn
Symptoms of winter burn, also called winter desiccation, range from brown, dry needle tips or leaf edges to the reddening or browning and death of entire needles or leaves (Figures 1 and 2). Winter burn may not be immediately apparent when it occurs because the affected foliage may not turn brown until the weather warms in late winter or early spring.
When winter burn is extremely severe, the foliage on entire branches and plants can be affected. However, winter burn damage is typically most severe on the sides of the plant more exposed to sun, wind, or both (Figures 3, 4A, and 4B).