Symptoms of black pod disease of cocoa (T. cacao)
Photo Gallery
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P. megakarya disease symptoms on Theobroma cacao
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P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
P. alni in riparian alder, Scotland  P. alni in riparian alder, Scotland |
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P. austrocedrae irregular sporangium  P. austrocedrae - irregular sporangium with lateral attachment and swelling in sporangiophore |
P. ramorum bleeding canker  Bark cracks with black ooze in coast live oak, a symptom of P. ramorum canker. |
P. boehmeriae chlamydospore  Globose chlamydospore of P. boehmeriae |
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P. nicotianae colony morphology on V8  Phytophthora nicotianae CBS 321.49 V8 after 7 days at 24 degrees. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. katsurae disease symptoms  Infected chestnut (Castanea) with bleeding canker |
Stain from Port Orford Cedar root disease  Stain from Chamaecyparis lawsoniana root disease on the Smith River |
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P. agathidicia sporangia  Differentiation of the cytoplasm within papillate sporangia into acid fuchsin stained zoospores |
P. siskiyouensis canker on Italian alder  Phytophthora collar rot on Italian alder trees: an isolated bleeding canker on the trunk |
P. chlamydospora colony morphology on carrot agar  P. chlamydospora colony morphology on carrot agar |