A. First, let me obtain this off my upper body– I’ve never been a fan of those fake snow-covered Christmas trees. However that’s a fascinating, as well as exact, method to describe what you have observed. It is pine needle range, or PNS, a bug. Chionaspis pinifolia is belonging to North America, however thankfully is a small insect in natural forests. The insect feeds with piercing/sucking mouth components that remove nutrients from tree needles and cause them to yellow. Luckily, severe infestations are not common, yet however, when paired with various other plant stressors, the range might create branch dieback and also the ultimate fatality of small trees.