Downy mildew, Leaf spot, Spider mites
Annosus Root Rot, Balsam twig aphid, Balsam Woolly Adelgid, Conifer root aphid, Cooley Spruce Gall Adelgid, Current Season Needle Necrosis, Douglas-fir Needle midge, Douglas-fir Twig weevil, Eriophyid mite, Giant Conifer or Cinara aphid, Grovesiella Canker, Interior Needle Blight, Melampsora Needle rust, Phytophthora Root Rot, Pucciniastrum Needle rust, Rhabdocline Needle Cast, Root weevil, Spruce spider mite, Swiss Needle Cast, Uredinopsis Needle rust