Clusters of sporangia emerge from stomata of an infected radiata pine needle.
Photo Gallery
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P. pluvialis on Pinus radiata needle  |
P. pluvialis symptoms on Douglas-fir  P. pluvialis symptoms of red needle cast on Douglas-fir, western Oregon 2015 |
P. siskiyouensis disease symptoms on Italian alder  Phytophthora collar rot on Italian alder trees: standing, dead tree |
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P. tentaculata hyphae  Looping hyphae commonly seen with P. tentaculata on PARP media |
Growth of P. megakarya on PDA  Growth of P. megakarya on potato dextrose agar |
P. pinifolia sporangia  Sporangium with internal proliferation, photo from Q-bank, used with permission. |
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P. alni lesion in alder, Illwald, France  P. alni lesion in alder, Illwald, France |
P. alni sporangia  Non-papillate sporangia of P. alni showing nested proliferation. |
P. cinnamomi hyphal swelling  P. cinnamomi hyphal swelling (or thin walled chlamydospores) |
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P. cinnamomi in Australia  Death of Xanthoria and other native vegetation, Victoria, Australia |
P. cinnamomi cork oak decline  Red oak with embedded lesions, France |
P. palmivora sporangia  Sporangia (sporangiospores) showing sympodial branching |