Phytophthora collar rot on Italian alder trees: an isolated bleeding canker on the trunk
Photo Gallery
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P. siskiyouensis canker on Italian alder  |
P. siskiyouensis bleeding canker  Bole lesions in the tissues under the bark of a bleeding canker: discoloration in the secondary phloem tissue |
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. tentaculata microscopic characteristics  Hyphal swellings occuring at branching points of Mycelium (A), Intercalary hyphal swellings (B), Chlamydospore (C ), Sporangia (D) |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
P. alni in alder forest, Germany, with T. Jung  P. alni in alder forest, Germany, with T. Jung |
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P. pluvialis - appearance of new growth  Tufted appearance of new growth from surviving buds on Douglas-fir, one year after defoliation. |
P. tentaculata oospores and antheridia  Paragynous antheridium attached to oogonium with oospore |
P. lateralis colony morphology on PDA  Growth morphology on PDA of Phytophthora lateralis |
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P. palmivora sporangia
 P. palmivora caducous papillate sporangia
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P. austrocedrae - Mal del ciprés, stages of decline  Mal del ciprés, stages of decline |
P. pluvialis hyphal swellings  P. pluvialis hyphal swellings in water |