Pine bark adelgid (Pineus strobi) is an aphid like insect that feeds on the plant juices of white pines and occasionally Scotch and Australian pines. Taxonomically they are part of the Adelgidae family which are traditionally classified under the super family Aphidoidea, but they can also be found classified under their sister taxon Phylloxeroidea. You are not likely to see the insect itself but rather the … Continue reading White fluff on Pine Trunks and Branches…Pine Bark Adelgid