P. megakarya on Theobroma
Disease symptoms on a cocoa pod
Photographer:
USDA ARS Photo Unit, USDA Agricultural Research Service, Bugwood.org
Disease Symptoms:
All disease symptoms
Fruit rot
Host Genus:
Theobroma
Scale:
Whole tree
Whole tree
Phytophthora cactorum canker on beech tree
Canker on Fagus sp. caused by Phytophthora cactorum.
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Fagus
Scale:
Whole tree
Phytophthora cactorum disease symptoms on English walnut 2
Dieback of Juglans regia caused by Phytophthora cactorum
Photographer:
Pennsylvania Department of Conservation and Natural Resources
Disease Symptoms:
All disease symptoms
Dieback
Host Genus:
Juglans
Scale:
Whole tree
Phytophthora cactorum disease symptoms on English walnut
Mortality of Juglans regia caused by Phytophthora cactorum.
Photographer:
Pennsylvania Department of Conservation and Natural Resources
Disease Symptoms:
All disease symptoms
Death
Host Genus:
Juglans
Scale:
Whole tree
P. arenaria disease symptoms on Banksia
Dead Banksia sp. in a Kwongan heathland on mineral sand near Eneabba, Western Australia recently killed by root and collar rot caused by Phytophthora arenaria
Photographer:
Giles Hardy
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Banksia
Scale:
Whole tree
Landscape
P. arenaria disease symptoms on Banksia
Dead Banksia sp. in a Kwongan heathland on mineral sand near Eneabba, Western Australia recently killed by root and collar rot caused by Phytophthora arenaria
Photographer:
Giles Hardy
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Banksia
Scale:
Whole tree
Symptom of black pod disease of cacao (T. cacao) caused by P. palmivora
Symptom of black pod disease of cacao (T. cacao) caused by P. palmivora
Photographer:
T. Widmer
Disease Symptoms:
All disease symptoms
Fruit rot
Host Genus:
Theobroma
Scale:
Whole tree
P. palmivora disease symptoms on cocao
Symptoms of black pod disease of cocoa (T. cacao)
Photographer:
T. Widmer
Disease Symptoms:
All disease symptoms
Fruit rot
Host Genus:
Theobroma
Scale:
Whole tree
P. lateralis on Port Orford cedar
Collar lesion on Chaemacyparis lawsoniana in Landrévarzec, France
Photographer:
D. Piou
Disease Symptoms:
All disease symptoms
Canker
Collar rot
Host Genus:
Chamaecyparis
Scale:
Whole tree
P. lateralis on Port Orford cedar
Lesion caused by aerial infection on Chaemacyparis lawsoniana in Lopérec, France
Photographer:
D. Piou
Disease Symptoms:
All disease symptoms
Canker
Host Genus:
Chamaecyparis
Scale:
Whole tree
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