February 4, 2017: As I walk through the woods surrounding my house, these pests on our pines come in to focus. They aren’t pine cones. They are bag worms and will happily eat their way through arborvitaes, leyland cypress, and pines. Unfortunately, our neighbor had an infestation on his pines and they are slowly moving over to ours. Super disgusting, but I pull these casings off and squish them with my foot, in hopes that I can slow their progress.