Phytophthora collar rot on Italian alder trees: standing, dead tree
Photo Gallery
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P. siskiyouensis disease symptoms on Italian alder  |
P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |
Growth of P. megakarya on V8 agar  Growth of P. megakarya on V8 agar |
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P. lateralis on Port Orford cedar  Typical decline of Chaemacyparis lawsoniana in Landrévarzec, France |
P. cryptogea colony morpholgy on PDA  Colony morphology on PDA at 14 days |
P. agathidicida growth on CMA  Diffuse, non-patterned, colony morphology of ICMP 16471 (the original “Gadgil isolate”) after 10-days incubation at 20°C in the dark |
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P. cinnamomi cork oak decline  Red oak with embedded lesions, France |
P. siskiyouensis bleeding canker  Bole lesions in the tissues under the bark of a bleeding canker: discoloration in the secondary phloem tissue |
P. kernoviae leaf wilt  Necrosis of rhododendron leaves. |
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P. frigida chlamydospore  Globose chlamydospores of P. frigida |
P. tentaculata microscopic characteristics  Hyphal swellings occuring at branching points of Mycelium (A), Intercalary hyphal swellings (B), Chlamydospore (C ), Sporangia (D) |
P. austrocedrae - sporangia drawings  Phytophthora austrocedrae. Morphology of sporangia. Bar: 25 mm. Greslebin et al. 2007 |