Collar canker rot of Ink disease on sweet chestnut
Photo Gallery
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P. cambivora disease symptoms  |
P. chlamydospora colony morphology on V8 agar  P. chlamydospora colony morphology on V8 agar |
P. lateralis colony morphology on PDA  Growth morphology on PDA of Phytophthora lateralis |
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Growth of P. megakarya on corn meal agar
 Growth of P. megakarya on corn meal agar |
P. ramorum canker  Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
P. pluvialis on Pinus radiata in New Zealand  Typical red needle cast symptoms along a twig. Lesions begin at the base of the needle which subsequently turns brown and is cast from the twig. |
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P. pinifolia colony morphology on CMA-NARP  Colony morphology of P. pinifolia at 20°C on CMA-NARP after 3 weeks. From Duran et al. 2008 |
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
P. pseudosyringae oogonium  Oogonium with paragynous antheridium in agar |
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P. nicotianae colony morphology on CMA  Phytophthora nicotianae CBS 321.49 CMA after 7 days at 24 degrees. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. pinifolia on Pinus radiata  Pinus radiata, note grey and collapsed needle bases |
P. agathidicida oospores in planta  Oospores 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 (scale bar =100 µm). |