| Problem | Publication |
Cesar Calderon, Cesar Calderon
Pathology Collection, USDA APHIS PPQ,
Bugwood.org
| Tip Blight
(Pestalotiopsis) | Pestalotiopsis Tip Blight on Arborvitae |
Penn State Department of Plant Pathology
& Environmental Microbiology Archives,
Penn State University, Bugwood.org
| Root Rot
(Phytophthora) | Common Diseases of Spruce in Kentucky |
Jennifer Olson, Oklahoma State University,
Bugwood.org
| Canker
(Seiridium) | Canker Sampling of Trees and Woody Ornamentals |
Minnesota Department of Natural Resources -
FIA, Minnesota Department of Natural Resources, Bugwood.org
| Environmental
(Winter Drying) | Leaf Scorch and Winter Drying of Woody Plants |
Jason Sharman, Vitalitree, Bugwood.org
| Bagworm | Bagworms on Landscape Plants |
Rayanne Lehman, Pennsylvania Department
of Agriculture, Bugwood.org
| Spider Mite | Spider Mites on Landscape Plants |
Penn State Department of Plant Pathology
& Environmental Microbiology Archives,
Penn State University, Bugwood.org
| Root Rot
(Phytophthora) | Common Diseases of Spruce in Kentucky |
