| Problem | Publication |
Joseph OBrien, USDA Forest Service,
Bugwood.org
| Environmental
(Stress) | Stress and Decline in Woody Plants |
Paul Bachi, University of Kentucky
Research and Education Center,
Bugwood.org
| Needle Blight
(Dothistroma/Mycosphaerella pini) | Dothistroma Needle Blight of Pine |
Paul Bachi, University of Kentucky
Research and Education Center,
Bugwood.org
| Needle Blight
(Stigmina) | Common Diseases of Spruce in Kentucky |
USDA Forest Service - North Central
Research Station, USDA Forest Service, Bugwood.org
| Needle Cast
(Phytophthora) | Common Diseases of Spruce in Kentucky |
Penn State Department of Plant
Pathology & Environmental Microbiology
Archives, Penn State University, Bugwood.org
| Root Rot
(Phytophthora) | Common Diseases of Spruce in Kentucky |
William Fountain, University of Kentucky, Bugwood.org
| Bagworm | Bagworms on Landscape Plants |
Ward Strong, BC Ministry of Forests,
Bugwood.org
| Spider Mite | Spider Mites on Landscape Plants |
Minnesota Department of Natural
Resources - FIA, Minnesota
Department of Natural Resources, Bugwood.org
| Environmental
(Winter Drying) | Leaf Scorch and Winter Drying of Woody Plants |
