By A Mystery Man Writer
eastern hemlock New York State Parks and Historic Sites Blog
Pine Bark Adelgid Causes Needle Stunting
Pine Bark Adelgid (Pineus strobi)-Hort Answers - University of Illinois Extension
white fuzzy fungus (?) on my pines? : r/arborists
Mugo Pine - Pinus mugo - North American Insects & Spiders
Pine Bark Adelgid Causes Needle Stunting
Forest Pest Insects in North America: a Photographic Guide
Pineus strobi (Weymouth pine adelgid) identification, images, ecology, control
Pineus pini (pine woolly aphid)
What insect is this? : Garden : University of Minnesota Extension
Adelgids
Fraser Fir IPM: White Pines in the Loading Yard
Pine: Pine bark adelgid, Hortsense