Dieback and shoot blight symptoms caused by P. ramorum on Abies grandis
Photo Gallery
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P. ramorum Dieback and shoot blight on Grand fir  |
P. agathidicida lesion on kauri tree  Gum oozing out of longitudinal lesion |
Dead and healthy Port-Orford cedar seedlings  Port-Orford-cedar seedlings planted to test for Phytophthora lateralis resistance at the Dorena Genetic Resource Center |
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P. agathidicida oospores  Oospores of P. agathidicida in the roots of kauri seedlings inoculated with P. agathidicida. The root has been cleared with potassium hydroxide and bleached with peroxide, before being stained with Trypan Blue |
P. cambivora bole canker  Fagus sylvatica bole canker |
P. austrocedrae - Mal del ciprés, stages of decline  Colony morphology of P. austrocedrae at 16 C after four weeks on PDA |
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P. cactorum colony morphology on PDA  Colony morphology on PDA at 14 days |
P. siskiyouensis sporangia  Sporangia showing a variety of shapes and orientations of semi-papillae and sporangiophores |
P. cinnamomi hyphal swellings  P. cinnamomi hyphal swellings (or thin walled chlamydospores) |
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P. pinifolia sporangia  Sporangium with internal proliferation, photo from Q-bank, used with permission. |
Stain from Port Orford Cedar root disease  Stain from Chamaecyparis lawsoniana root disease on the Smith River |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |