Problem
Publication
Frost and winter injury

Joseph OBrien, USDA Forest Service,
Bugwood.org
Environmental
(Stress)
Stress and Decline in Woody Plants
Dothistroma needle blight

Paul Bachi, University of Kentucky
Research and Education Center,
Bugwood.org
Needle Blight
(Dothistroma/Mycosphaerella pini)
Dothistroma Needle Blight of Pine
Stigmina leaf spot

Paul Bachi, University of Kentucky
Research and Education Center,
Bugwood.org
Needle Blight
(Stigmina)
Common Diseases of Spruce in Kentucky
Rhizosphaera needle cast

USDA Forest Service - North Central
Research Station, USDA Forest Service, Bugwood.org
Needle Cast
(Phytophthora)
Common Diseases of Spruce in Kentucky
Phytophthora root rot

Penn State Department of Plant
Pathology & Environmental Microbiology
Archives, Penn State University, Bugwood.org
Root Rot
(Phytophthora)
Common Diseases of Spruce in Kentucky
Bagworms

William Fountain, University of Kentucky, Bugwood.org
BagwormBagworms on Landscape Plants
Spruce spider mite

Ward Strong, BC Ministry of Forests,
Bugwood.org
Spider MiteSpider Mites on Landscape Plants
Desication (wind burn)

Minnesota Department of Natural
Resources - FIA, Minnesota
Department of Natural Resources, Bugwood.org
Environmental
(Winter Drying)
Leaf Scorch and Winter Drying of Woody Plants