Nursery grown California mugwort plant (Artemisia douglasiana) infected with P. tentaculata and exhibiting severe root and crown rot
Photo Gallery
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P. tentaculata disease symptoms on California mugwort  |
P. chlamydospora colony morphology on V8 agar  P. chlamydospora colony morphology on V8 agar |
P. kernoviae oogonium  Oogonium with amphigynous antheridia, photo from Q-bank, used with permission |
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P. pinifolia on Pinus radiata  Pinus radiata, note Infected needles at right angles to stem |
P. palmivora sporangia  Sporangia (sporangiospores) showing sympodial branching |
P. frigida symptoms 3  Black wattle bark with symptoms of gummosis |
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P. austrocedrae irregular sporangium  P. austrocedrae - irregular sporangium with lateral attachment and swelling in sporangiophore |
P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20 µm. |
Tāne Mahuta “Lord of the Forest” kauri tree  Tāne Mahuta “Lord of the Forest” is a giant kauri tree (approximately 47 metres in height) in the Waipoua Forest of Northland Region, New Zealand. Its age is unknown but is estimated to be between 1,250 and 2,500 years |
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P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
P. cinnamomi cork oak decline  Cork oak decline, Portugal |
P. pseudosyringae colony morphology on PDA  Colony morphology on PDA at 14 days |