P. kernoviae leaf wilt
Wilted leaf of infected rhododendron
Photographer:
Forest Research
Disease Symptoms:
All disease symptoms
Leaf necrosis
Host Genus:
Rhododendron
Scale:
Whole tree
Whole tree
P. cambivora symptoms
Tar spots on European beech (Fagus sylvatica) with bark removed. Lesse, Germany
Photographer:
Andrej Kunca, National Forest Centre - Slovakia, Bugwood.org
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Fagus
Scale:
Whole tree
P. cambivora symptoms
Fagus sylvatica bole canker
Photographer:
J. Parke
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Fagus
Scale:
Whole tree
P. cambivora symptoms
P. cambivora on Fagus sylvatica bole
Photographer:
J. Parke
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Fagus
Scale:
Whole tree
P. alni basal canker on European Alder
P. alni basal canker on European Alder (Alnus glutinosa)
Photographer:
Andrej Kunca, National Forest Centre - Slovakia, Bugwood.org
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Alnus
Scale:
Whole tree
P. alni canker on gray alder
Grey alder (A. incana) with collar rot caused by P. alni
Photographer:
Thomas Jung, Bugwood.org
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Alnus
Scale:
Whole tree
P. ramorum dieback and shoot blight on Grand fir.
Dieback and shoot blight symptoms caused by P. ramorum on Abies grandis
Photographer:
Santa Clara County Department of Agriculture, CA (USA)
Disease Symptoms:
All disease symptoms
Blight
Dieback
Host Genus:
Abies
Scale:
Whole tree
Stain from Port Orford Cedar root disease
Stain from Chamaecyparis lawsoniana root disease on the Smith River
Photographer:
Donald Owen, California Department of Forestry and Fire Protection
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Chamaecyparis
Scale:
Whole tree
Healthy Port Orford Cedar tree
Healthy Chamaecyparis lawsoniana tree
Photographer:
Barbara Ullian
Host Genus:
Chamaecyparis
Scale:
Whole tree
Basal canker on Port Orford Cedar stump
Photographer:
Everett Hansen
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Chamaecyparis
Scale:
Whole tree
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